Journal articles on the topic 'Local tone mapping'

Abstract High dynamic range (HDR) imaging has gained great popularity over the past twenty years. Tone mapping operator (TMO) is the key component that enables reproduction of HDR images on the standard low dynamic range (LDR) display devices. When it comes to the HDR video, design of the TMO becomes especially challenging since temporal control of TMO parameters is needed in order to avoid possible artifacts. Since temporal and spatial contrast cannot be met simultaneously, existing solutions are usually designed to optimize one of these two requirements. We present novel local tone mapping operator that preserves details and simultaneously provides good local and global contrast of processed images. Tunable temporal control enables trade-off between spatial and temporal contrast of a tone mapped video. Flexible control presented in this paper ensures that both requirements can be met with a single operator just by using different tuning of the control block.When compared to the state-of-the-art TMOs, proposed solution exhibits better results regarding overall image quality.

Tone mapping operators are designed to display high dynamic range (HDR) images on low dynamic range devices. Clustering-based content and color adaptive tone mapping algorithm aims to maintain the color information and local texture. However, fine details can still be lost in low dynamic range images. This paper presents an effective way of clustering-based content and color adaptive tone mapping algorithm by using fast search and find of density peak clustering. The suggested clustering method reduces the loss of local structure and allows better adaption of color in images. The experiments are carried out to evaluate the effectiveness and performance of proposed technique with state-of-the-art clustering techniques. The objective and subjective evaluation results reveal that fast search and find of density peak preserves more textural information. Therefore, it is most suitable to be used for clustering-based content and color adaptive tone mapping algorithm.

In recent years, people have wanted to watch high dynamic range imagery which can give high human visual satisfaction on smartphones and demand longer smartphone battery time. However, compression of dynamic range using tone-mapping operators is required in smartphones because most smartphone displays currently have a low dynamic range, and this causes loss of local contrast and details to compress dynamic range. Thus, in this paper we propose a novel dynamic voltage scaling scheme tightly coupled with a modified tone-mapping operator to achieve high power saving as well as good human perceptuality on an AMOLED display smartphone. In order to perform a human perceptuality-aware voltage control, we control display panel voltage to save power consumption and use a well-adjusted global tone-mapping operator to convert image brightness and unsharp masking to enhance local contrast and details and control. We implement the proposed scheme on the AMOLED display Android smartphone and experiment with various high dynamic range image databases. Experimental results show that not only tone-mapped images but also general images are improved in terms of human visual satisfaction and power saving, compared to conventional techniques.

Computed Tomography (CT) images have a high dynamic range, which makes visualization challenging. Histogram equalization methods either use spatially invariant weights or limited kernel size due to the complexity of pairwise contribution calculation. We present a weighted histogram equalization-based tone mapping algorithm which utilizes Fast Fourier Transform for distance-dependent contribution calculation and distance-based weights. The weights follow power-law without distance-based cut-off. The resulting images have good local contrast without noticeable artefacts. The results are compared to eight popular tone mapping operators.

High Dynamic Range (HDR) imaging applications have been commonly placed recently. Several tone mapping operators (TMOs) have been developed which project the HDR radiance range to that of a display. Currently, there is no agreement on a technique for evaluation of tone mapping operators. The goal of this study is to establish a method based on reference images to evaluate the TMOs. Two psychophysical experiments were carried out for the evaluation of tone mapping operators. In the first experiment, a set of high quality images were generated to possess right extents of image features including contrast, colourfulness and sharpness. These images were further used in the second experiment as reference images to evaluate different TMOs. It was found Reinhard's photographic reproduction based on local TMO gave an overall better performance. CIELAB(2:1) and S- CIELAB metrics were also used to judge colour image quality of the same TMOs. It was found that both metrics agreed well with the visual results.

High dynamic range (HDR) imaging has greater contrast reproduction capability than standard imaging techniques. It can achieve natural and pleasing appearance in terms of image quality. A tone mapping model (TMOz) is developed based on the center-surround properties of the mammalian ganglion cells of the human visual system for feature enhancement. The contrast of the HDR image is mapped adaptively to an SDR display range using a global method followed by contrast enhancement in local regions. A psychophysical experiment was conducted to refine the model for adaptivity of the contrast mapping function. Finally, the performance of the TMOz was evaluated using CIELAB (2:1) formula together with high quality reference images. The results showed that TMOz outperformed the other tone mapping operators (TMOs).

High-dynamic-range (HDR) imaging is a digital image processing technique that enhances an image’s visibility by modifying its color and contrast ranges. Generative adversarial networks (GANs) have proven to be potent deep learning models for HDR imaging. However, obtaining a sufficient volume of training image pairs is difficult. This problem has been solved using CycleGAN, but the result of the use of CycleGAN for converting a low-dynamic-range (LDR) image to an HDR image exhibits problematic color distortion, and the intensity of the output image only slightly changes. Therefore, we propose a GAN training optimization model for converting LDR images into HDR images. First, a gamma shift method is proposed for training the GAN model with an extended luminance range. Next, a weighted loss map trains the GAN model for tone compression in the local area of images. Then, a regional fusion training model is used to balance the training method with the regional weight map and the restoring speed of local tone training. Finally, because the generated module tends to show a good performance in bright images, mean gamma tuning is used to evaluate image luminance channels, which are then fed into modules. Tests are conducted on foggy, dark surrounding, bright surrounding, and high-contrast images. The proposed model outperforms conventional models in a comparison test. The proposed model complements the performance of an object detection model even in a real night environment. The model can be used in commercial closed-circuit television surveillance systems and the security industry.

<p class="VARAbstract">The ability of High Dynamic Range (HDR) imaging to capture the full range of lighting in a scene has meant that it is being increasingly used for Cultural Heritage (CH) applications. Photogrammetric techniques allow the semi-automatic production of 3D models from a sequence of images. Current photogrammetric methods are not always effective in reconstructing images under harsh lighting conditions, as significant geometric details may not have been captured accurately within under- and over-exposed regions of the image. HDR imaging offers the possibility to overcome this limitation, however the HDR images need to be tone mapped before they can be used within existing photogrammetric algorithms. In this paper we evaluate four different HDR tone-mapping operators (TMOs) that have been used to convert raw HDR images into a format suitable for state-of-the-art algorithms, and in particular keypoint detection techniques. The evaluation criteria used are the number of keypoints, the number of valid matches achieved and the repeatability rate. The comparison considers two local and two global TMOs. HDR data from four CH sites were used: Kaisariani Monastery (Greece), Asinou Church (Cyprus), Château des Baux (France) and Buonconsiglio Castle (Italy).</p>

This paper presents an improved high dynamic range image tone mapping method based on fast bilateral filtering. The algorithm first applied a bilateral filtering to the luminance channel of the image, the image is decomposed into an HDR base layer and an LDR detail layer. Then the HDR base layer is blurred with bilateral filtering again, get the details portion of the base layer, at the same time the dynamic range of the global base layer is compressed. Finally, the detail component and the compressed HDR base layer are recombined and the result is tone-mapped image for displaying. For color image, the color restoration converts luminance value into RGB color. Experimental results show that the proposed technique performed better than the conventional bilateral filtering, preserving more details and enhancing local contrast, giving decent visual effect and avoiding additional artifacts.

High dynamic range (HDR) images give a strong disposition to capture all parts of natural scene information due to their wider brightness range than traditional low dynamic range (LDR) images. However, to visualize HDR images on common LDR displays, tone mapping operations (TMOs) are extra required, which inevitably lead to visual quality degradation, especially in the bright and dark regions. To evaluate the performance of different TMOs accurately, this paper proposes a blind tone-mapped image quality assessment method based on regional sparse response and aesthetics (RSRA-BTMI) by considering the influences of detail information and color on the human visual system. Specifically, for the detail loss in a tone-mapped image (TMI), multi-dictionaries are first designed for different brightness regions and whole TMI. Then regional sparse atoms aggregated by local entropy and global reconstruction residuals are presented to characterize the regional and global detail distortion in TMI, respectively. Besides, a few efficient aesthetic features are extracted to measure the color unnaturalness of TMI. Finally, all extracted features are linked with relevant subjective scores to conduct quality regression via random forest. Experimental results on the ESPL-LIVE HDR database demonstrate that the proposed RSRA-BTMI method is superior to the existing state-of-the-art blind TMI quality assessment methods.

Joint learning of super-resolution (SR) and inverse tone-mapping (ITM) has been explored recently, to convert legacy low resolution (LR) standard dynamic range (SDR) videos to high resolution (HR) high dynamic range (HDR) videos for the growing need of UHD HDR TV/broadcasting applications. However, previous CNN-based methods directly reconstruct the HR HDR frames from LR SDR frames, and are only trained with a simple L2 loss. In this paper, we take a divide-and-conquer approach in designing a novel GAN-based joint SR-ITM network, called JSI-GAN, which is composed of three task-specific subnets: an image reconstruction subnet, a detail restoration (DR) subnet and a local contrast enhancement (LCE) subnet. We delicately design these subnets so that they are appropriately trained for the intended purpose, learning a pair of pixel-wise 1D separable filters via the DR subnet for detail restoration and a pixel-wise 2D local filter by the LCE subnet for contrast enhancement. Moreover, to train the JSI-GAN effectively, we propose a novel detail GAN loss alongside the conventional GAN loss, which helps enhancing both local details and contrasts to reconstruct high quality HR HDR results. When all subnets are jointly trained well, the predicted HR HDR results of higher quality are obtained with at least 0.41 dB gain in PSNR over those generated by the previous methods. The official Tensorflow code is available at https://github.com/JihyongOh/JSI-GAN.

Image fusion combines images with different information to create a single, information-rich image. The process may either involve synthesizing images using multiple exposures of the same scene, such as exposure fusion, or synthesizing images of different wavelength bands, such as visible and near-infrared (NIR) image fusion. NIR images are frequently used in surveillance systems because they are beyond the narrow perceptual range of human vision. In this paper, we propose an infrared image fusion method that combines high and low intensities for use in surveillance systems under low-light conditions. The proposed method utilizes a depth-weighted radiance map based on intensities and details to enhance local contrast and reduce noise and color distortion. The proposed method involves luminance blending, local tone mapping, and color scaling and correction. Each of these stages is processed in the LAB color space to preserve the color attributes of a visible image. The results confirm that the proposed method outperforms conventional methods.

The aim of this study was to examine whether additional digital intraoral radiography (DIR) image preprocessing based on textural description methods improves the recognition and differentiation of periapical lesions. (1) DIR image analysis protocols incorporating clustering with the k-means approach (CLU), texture features derived from co-occurrence matrices, first-order features (FOF), gray-tone difference matrices, run-length matrices (RLM), and local binary patterns, were used to transform DIR images derived from 161 input images into textural feature maps. These maps were used to determine the capacity of the DIR representation technique to yield information about the shape of a structure, its pattern, and adequate tissue contrast. The effectiveness of the textural feature maps with regard to detection of lesions was revealed by two radiologists independently with consecutive interrater agreement. (2) High sensitivity and specificity in the recognition of radiological features of lytic lesions, i.e., radiodensity, border definition, and tissue contrast, was accomplished by CLU, FOF energy, and RLM. Detection of sclerotic lesions was refined with the use of RLM. FOF texture contributed substantially to the high sensitivity of diagnosis of sclerotic lesions. (3) Specific DIR texture-based methods markedly increased the sensitivity of the DIR technique. Therefore, application of textural feature mapping constitutes a promising diagnostic tool for improving recognition of dimension and possibly internal structure of the periapical lesions.

The spatial organization of response parameters in squirrel monkey primary auditory cortex (AI) accessible on the temporal gyrus was determined with the excitatory receptive field to pure tone stimuli. Dense, microelectrode mapping of the temporal gyrus in four animals revealed that characteristic frequency (CF) had a smooth, monotonic gradient that systematically changed from lower values (0.5 kHz) in the caudoventral quadrant to higher values (5–6 kHz) in the rostrodorsal quadrant. The extent of AI on the temporal gyrus was ∼4 mm in the rostrocaudal axis and 2–3 mm in the dorsoventral axis. The entire length of isofrequency contours below 6 kHz was accessible for study. Several independent, spatially organized functional response parameters were demonstrated for the squirrel monkey AI. Latency, the asymptotic minimum arrival time for spikes with increasing sound pressure levels at CF, was topographically organized as a monotonic gradient across AI nearly orthogonal to the CF gradient. Rostral AI had longer latencies (range = 4 ms). Threshold and bandwidth co-varied with the CF. Factoring out the contribution of the CF on threshold variance, residual threshold showed a monotonic gradient across AI that had higher values (range = 10 dB) caudally. The orientation of the threshold gradient was significantly different from the CF gradient. CF-corrected bandwidth, residual Q10, was spatially organized in local patches of coherent values whose loci were specific for each monkey. These data support the existence of multiple, overlying receptive field gradients within AI and form the basis to develop a conceptual framework to understand simple and complex sound coding in mammals.

This paper presents results of a comparative analysis of 34 measures published in the scientific literature and used for evaluation of the image quality without a reference image. In English literature, they are called no-reference (NR) measure or measures NR-type. The first article, the term no-reference, was published in 2000 and each year a growing number of publications on new measures NR-type. However, comparative studies of such measures is not practically conducted. Such measures are very important for a) just made photo quality evaluation, b) assessment of image enhancement transformations and selection of their parameters (such as contrast and brightness adjustments, tone-mapping, decolorization and others). Publicly available image quality databases used for study no-reference quality measures (TID2013, etc.), contain 4-5 variants of images distorted by predefined transformations with unknown parameters. We presented six types of experiments to analyze correlation of the computed numerical quality values with visual estimates of the test images quality. Four of the experiments are new: comparison of images after gamma-correction and contrast enhancement with different parameters, as well as analysis of the retouched images and photos taken with different focal length. It was shown experimentally that no one of the known no-reference quality assessment measure is universal, and the calculated value cannot be converted to a quality scale, excluding factors influencing the distortion of the image. Most of the studied measures calculates local estimates in small neighborhoods, and their arithmetic mean is the quality index of the image. If the image contains large areas of uniform brightness, the measures of this type can give incorrect quality assessment, which will not correlate with the visual assessments.

Abstract Mangroves in small islands are critical resources for the stability of the island and the livelihood of local coastal communities. However, scientific inventories of mangroves in small islands are rare due to their limited distribution. Considering this, the present study was conducted during 2014–2015 to determine the species composition, biomass, vegetative carbon stock and spatial distribution of mangroves at Neil Island, one of the small islands of the Andaman and Nicobar Islands, India. The spatial locations of different species of mangroves identified from our extensive field surveys were compared with high-resolution images, and the coverage of mangroves (genus level distribution) was interpreted entirely based on the elements of tone and texture. The results show that the mangroves of Neil Island consist of 17 true mangrove species belonging to 12 genera in eight families. The co-existence of all three Indo-West Pacific mangrove species of the genus Rhizophora (Rhizophora apiculata, Rhizophora mucronata and Rhizophora stylosa), and their hybrids (Rhizophora × annamalayana, Rhizophora × lamarckii and Rhizophora × mohanii) shows that this island is a unique place for studying the hybridization and speciation of Rhizophora, a worldwide dominant mangrove genus. Rhizophora mucronata was found to be the dominant species in terms of density, basal area and biomass estimated from forest structural assessments using the quadrat method. The mean density and basal area were 1162 trees ha−1 and 28 m2 ha−1, respectively. The mean above-ground biomass was 271 Mg ha−1, while the mean below-ground biomass was 104 Mg ha−1. The total mean biomass of Neil Island mangroves was 375 Mg ha−1 and its corresponding vegetative carbon stock was 171 Mg C ha−1. The present study provides a practical approach to species-level mapping and assessment to gain site-specific knowledge of the mangroves of Neil Island. Since mangroves are vital for small islands such as Neil Island to cope with rising sea level and increases in natural calamities, the baseline scientific information provided by this study will be beneficial for Integrated Island Management.

Floods are one of the most devastating natural hazards, causing deaths, economic losses, and destruction of property. Flood susceptibility maps are an essential tool for flood mitigation and preparedness planning. This study mapped flood susceptibility using statistical index (SI) and weighting factor (WF) models in San Pa Tong District, Chiang Mai Province, Thailand. The conditioning factors used to perform flood susceptibility mapping were elevation, slope, aspect, curvature, topographic wetness index, stream power index, rainfall, distance from rivers, stream density, soil drainage, land use, and road density. The flood data were randomly classified as training data for mapping (70% of data) and testing data for model validation (30% of data). The results revealed that the SI and WF models classified 49.49% and 51.74% of the study area, respectively, as very highly susceptible to flooding. In the WF model, the factors with the greatest influence were land use, soil drainage, and elevation. The validation of the models using the area under the curve revealed that the success rates of the SI and WF models were 91.80% and 93.06%, while the prediction rates were 92.05% and 93.52%, respectively. The results from this study can be useful for local authorities in San Pa Tong District for flood preparedness and mitigation.

In common with other sensory cortices, the mammalian primary auditory cortex (AI) demonstrates the capacity for large-scale reorganization following many experimental situations. For example, training animals in frequency-discrimination tasks has been shown to result in an increase in cortical frequency representation. Such central changes—most commonly, an increase in central representation of specific stimulus parameters—have been hypothesized to underlie the improvements in perceptual acuity (perceptual learning) seen in many learning situations. The actual behavioral relevance of central reorganizations, however, remains speculative. Here, we directly examine this issue. We first show that stimulating the AI cortex of the awake rat with a weak electric current (intracortical microstimulation or ICMS) has the effect of inducing central reorganizations similar to those accompanying the traditional plasticity experiments (a result previously noted only in anesthetized preparations). Depending on the site of AI stimulation, ICMS enlarged the cortical representation of certain frequencies. Next we examined the direct perceptual consequences of ICMS-induced AI reorganization for the rat's ability to discriminate frequencies. Over the course of the experiment, we also detailed, and made comparisons between, the frequency-response characteristics of rat AI cortex in the awake and ketamine-anesthetized animal. AI cells that responded to pure tones were divided into two categories—strongly and weakly responsive—based on the strength of their evoked discharge. Individual cells maintained their respective response strengths in both awake and anesthetized conditions. Strongly responsive cells showed at least four different temporal responses and tended to be narrowly tuned. Their responses were stable over the long term. In general frequency-response characteristics were qualitatively similar in the anesthetized and awake animal; bandwidths tended to be broader in awake animals. Although both strong and weak cell populations respond to tones, only the strongly responsive cells fit into a tonotopically organized scheme. By contrast, weakly responsive cells did not exhibit a frequency mapping and may represent a more diffuse input to AI than that underlying strongly responsive cells. In general, the overall frequency organization of AI was found to be equally well expressed in both the awake and anesthetized rat. ICMS reorganization of AI did not alter frequency-discrimination behavior in the rat—either signal detectability or response bias—suggesting that an increase in central representation, by itself, is insufficient to account for perceptual learning. It is likely that cortical reorganizations that accompany perceptual learning are strongly keyed to specific behavioral contexts.

Abstract Using rotated principal component analysis (PCA), unique, orthogonal spatial patterns of daily and monthlyprecipitation on a well-instrumented, mountainous watershed in Idaho are examined for their relationship totopography, geographic location, and atmospheric variability. Precipitation pattern and homogeneous precipitationregion differences between daily and monthly timescales and between winter and summer Seasons were identifiedusing the rotated PCA procedure. In general, monthly data produced regional boundaries more closely alignedwith topography, reflecting the integration of many storm events on monthly timescales. Spatial fields, derivedfrom mapping rotated component loadings at 46 precipitation stations on a 234-kmz watershed, were found tobe highly correlated with topography and geographic location. The eight-year time series of the components forspecific watershed regions were found to be moderately related to linear combinations of meteorological variablesderived from a single radiosonde station approximately 50 km from the waterhed. This would indicate thepotential usefulness of data from a single location, such as a general circulation model grid point, to provideclues about spatial pattern changes and regional precipitation fluctuations even on a small watershed, if sufficientinformation about local climate (i.e., topographic influences) is first established.

This research paper proposes a unique optimal tone-mapping technique for high dynamic range (HDR) images, performing local adjustments with overlapping windows covering complete image. A local linear adjustment is applied on each window to preserve the radiance values. This problem may be treated as global optimization problems to satisfy the local restriction for every overlapping window. These Local constraints may be considered as a guidance map to suppress high contrast without losing its details. M-estimation technique may be used for solving this optimization problem. This technique may be applied to HDR images with sudden radiance changes or comparatively smooth transitions. Further, this technique may be applied to differentiate and analyzes HDR images from LDR images. Simulation results are included to support the performance gains achieved by the proposed technique.

Virtual prototyping of automotive headlights requires a realistic illumination model, capable of rendering scenes of high contrast in fine detail. Due to the high dynamic range (HDR) nature of headlight beam-pattern data, which is projected onto the virtual road, high dynamic range illumination models are required. These are used as the basis for illumination in simulations for automotive headlight virtual prototyping. Since high dynamic range illumination models operate on brightness ranges commensurate with the real world, a postprocessing operation, known as tone mapping, is required to map each frame into the device-specific range of the display hardware. Algorithms for tone mapping, called tone-mapping operators, can be classified as global or local. Global operators are efficient to compute at the expense of scene quality. Local operators preserve scene detail, but, due to their additional computational complexity, are rarely used with interactive applications. Local tone-mapping methods produce more usable visualization results for engineering tasks. This paper proposes a local tone-mapping method suitable for use with interactive applications. To develop a suitable tone-mapping operator, a state of the art local tone-mapping method was accelerated using modern, work-efficient GPU (graphics processing unit) algorithms. Optimal performance, both in terms of memory and speed, was achieved by means of general-purpose GPU programming with CUDA (compute unified device architecture). A prototypic implementation has shown that the method works well with high dynamic range OpenGL applications. In the near future, the tone mapper will be integrated into the virtual night driving simulator at our institute.

Abstract High Dynamic Range (HDR) displays can show images with higher color contrast levels and peak luminosities than the common Low Dynamic Range (LDR) displays. However, most existing video content is recorded and/or graded in LDR format. To show LDR content on HDR displays, it needs to be up-scaled using a so-called inverse tone mapping algorithm. Several techniques for inverse tone mapping have been proposed in the last years, going from simple approaches based on global and local operators to more advanced algorithms such as neural networks. Some of the drawbacks of existing techniques for inverse tone mapping are the need for human intervention, the high computation time for more advanced algorithms, limited low peak brightness, and the lack of the preservation of the artistic intentions. In this paper, we propose a fully-automatic inverse tone mapping operator based on mid-level mapping capable of real-time video processing. Our proposed algorithm allows expanding LDR images into HDR images with peak brightness over 1000 nits, preserving the artistic intentions inherent to the HDR domain. We assessed our results using the full-reference objective quality metrics HDR-VDP-2.2 and DRIM, and carrying out a subjective pair-wise comparison experiment. We compared our results with those obtained with the most recent methods found in the literature. Experimental results demonstrate that our proposed method outperforms the current state-of-the-art of simple inverse tone mapping methods and its performance is similar to other more complex and time-consuming advanced techniques.

This paper offers a computational characterization of tone-to-TBU association processes using a restricted least-fixed point logic. Crucially, least fixed point logics allow recursive definitions which capture output-oriented processes. The added requirement that these definitions are quantifier-free ensures that they are inherently local, a restriction that is well-motivated for phonological processes in general. The typology developed here distinguishes between possible and impossible tone mappings, capturing a wider range of attested tone mappings (left-to-right, right-to-left, edge-in, quality-sensitive) than previous rule-based or optimization approaches, while also explaining why certain unattested mapping patterns (for example center-out association) are impossible. This thus represents a strong first approximation of a definition for output-based local functions over non-linear structures

A large number of studies have been made on denoising of a digital noisy image. In regression filters, a convolution kernel was determined based on the spatial distance or the photometric distance. In non-local mean (NLM) filters, pixel-wise calculation of the distance was replaced with patch-wise one. Later on, NLM filters have been developed to be adaptive to the local statistics of an image with introduction of the prior knowledge in a Bayesian framework. Unlike those existing approaches, we introduce the prior knowledge, not on the local patch in NLM filters but, on the noise bias (NB) which has not been utilized so far. Although the mean of noise is assumed to be zero before tone mapping (TM), it becomes non-zero value after TM due to the non-linearity of TM. Utilizing this fact, we propose a new denoising method for a tone mapped noisy image. In this method, pixels in the noisy image are classified into several subsets according to the observed pixel value, and the pixel values in each subset are compensated based on the prior knowledge so that NB of the subset becomes close to zero. As a result of experiments, effectiveness of the proposed method is confirmed.

Abstract. Objective. To evaluate the influence of venous hemodynamics in acute varicothrombophlebitis in the basin of the great saphenous vein on the spread of the thrombotic process. Materials and methods. The analysis of venous hemodynamic disorders in 245 patients with acute varicothrombophlebitis in the basin of the great saphenous vein was performed. The age of patients participating in the study ranged from 19 to 82 years (mean age 52±2,7 years). There were 93 men (38.0%) and 152 women (62.0%). The laboratory and instrumental methods were used for all the patients. They included doppler ultrasound and ultrasound duplex scanning. («ULTIMA PRO–30, zone Ultra», ZONARE Medical Systems Inc., USA). Results. When AVTF occurred in the GSV basin, all patients showed reflux in the superficial veins of the lower extremities. The ultrasound scanning was performed at the initial examination and immediately before urgent surgery for AVTF. The data of color duplex mapping allowed to reveal certain regularities of venous blood flow disturbance in AVTF and divided patients depending on the state of venous blood flow in the GSV basin into 5 groups. Each of these groups of patients, depending on the prevalence of venous reflux in the GSV pool, was divided into two subgroups: local and widespread reflux. It should be noted, that the conditions for the detection of total reflux in ATVF, with the involvement of GSV in the pathological process, were not due to thrombotic lesions of the latter. When venous reflux was detected, the elasticity and extensibility of the vein wall at the apex of thrombotic masses were evaluated. The ratio of the diameters of the GSV in these positions and the assessment of the "degree of elasticity" by Schwalb PG (2005), which indirectly characterized the state of venous tone were calculated. Venous reflux was assessed on a Valsalva test in vertical and horizontal positions. Venous reflux of blood in the femoral veins was found in 134 (54.7%) patients. At the same time, local reflux was found in 38 (15.5%), and widespread - in 96 (39.2%) patients. It should be noted that the prevalence of venous reflux was directly proportional to its power. Among all groups of patients with acute varicothrombophlebitis, 176 (71.8%) had widespread reflux in the great saphenous vein and 96 (39.2%) in the femoral vein. In 37 (15.1%) patients with acute varicothrombophlebitis revealed a combined nature of reflux, ie the spread of reflux from the superficial venous system not only to the apex of thrombotic masses, but also to the site of horizontal perforation, and reflux from the deep venous system spread through failed perineal veins in the great saphenous vein. Thus, widespread venous reflux was found in 87.3% of patients. In the absence of vertical reflux through the sapheno-femoral cochlea and the presence of an ascending process of thrombosis, it is necessary to identify another source of reflux. Conclusions. It is proved that the process of thrombosis in acute varicothrombophlebitis depends on the power of venous reflux, the severity of venous discharge through the communicating veins, the state of collateral venous blood flow in venous shunts and basins of large and small subcutaneous venous blood vessels. Venous reflux in the trunk of the great saphenous vein to some extent determines the embolism of the thrombus and participates in its development. Varicose veins of the great saphenous vein and the discharge of blood through incapable permeable veins reduce the power of reflux through the sapheno-femoral cochlea and reduce the rate of thrombosis in the main trunk.

The subcortical sensory pathways are the fundamental channels for mapping the outside world to our minds. Sensory pathways efficiently transmit information by adapting neural responses to the local statistics of the sensory input. The long-standing mechanistic explanation for this adaptive behaviour is that neural activity decreases with increasing regularities in the local statistics of the stimuli. An alternative account is that neural coding is directly driven by expectations of the sensory input. Here, we used abstract rules to manipulate expectations independently of local stimulus statistics. The ultra-high-field functional-MRI data show that abstract expectations can drive the response amplitude to tones in the human auditory pathway. These results provide first unambiguous evidence of abstract processing in a subcortical sensory pathway. They indicate that the neural representation of the outside world is altered by our prior beliefs even at initial points of the processing hierarchy.

Disinformation can appear in various forms. Firstly, different formats can be manipulated, such as texts, images, and videos. Secondly, the amount and degree of falseness can vary, from completely fabricated content to decontextualized information to satire that intentionally misleads recipients. Therefore, the forms and format of disinformation might vary and differ not only between the supposedly clear categories of “true” and “false”. Field of application/theoretical foundation: Studies on types of disinformation are conducted in various fields, e.g. political communication, journalism studies, and media effects studies. Among other things, the studies identify the most common types of mis- or disinformation during certain events (Brennen, Simon, Howard, & Nielsen, 2020), analyze and categorize the behavior of different types of Twitter accounts (Linvill & Warren, 2020), and investigate the existence of serveral types of “junk news” in different national media landscapes (Bradshaw, Howard, Kollanyi, & Neudert, 2020; Neudert, Howard, & Kollanyi, 2019). References/combination with other methods of data collection: Only relatively few studies use combinations of methods. Some studies identify different types of disinformation via qualitative and quantitative content analyses (Bradshaw et al., 2020; Brennen et al., 2020; Linvill & Warren, 2020; Neudert et al., 2019). Others use surveys to analyze respondents’ concerns as well as exposure towards different types of mis- and disinformation (Fletcher, 2018). Example studies: Brennen et al. (2020); Bradshaw et al. (2020); Linvill and Warren (2020) Information on example studies: Types of disinformation are defined by the presentation and contextualization of content and sometimes additionally by details (e.g. professionalism) about the communicator. Studies either deductively identify different types of disinformation (Brennen et al., 2020) by applying the theoretical framework by Wardle (2019), or additionally inductively identify and build different categories based on content analyses (Bradshaw et al., 2020; Linvill & Warren, 2020). Table 1. Types of mis-/disinformation by Brennen et al. (2020) Category Specification Satire or parody - False connection Headlines, visuals or captions don’t support the content Misleading content Misleading use of information to frame an issue or individual, when facts/information are misrepresented or skewed False context Genuine content is shared with false contextual information, e.g. real images which have been taken out of context Imposter content Genuine sources, e.g. news outlets or government agencies, are impersonated Fabricated content Content is made up and 100% false; designed to deceive and do harm Manipulated content Genuine information or imagery is manipulated to deceive, e.g. deepfakes or other kinds of manipulation of audio and/or visuals Note. The categories are adapted from the theoretical framework by Wardle (2019). The coding instruction was: “To the best of your ability, what type of misinformation is it? (Select one that fits best.)” (Brennen et al., 2020, p. 12). The coders reached an intercoder reliability of a Cohen’s kappa of 0.82. Table 2. Criteria for the “junk news” label by Bradshaw et al. (2020) Criteria Reference Specification Professionalism refers to the information about authors and the organization “Sources do not employ the standards and best practices of professional journalism, including information about real authors, editors, and owners” (pp. 174-175). “Distinct from other forms of user-generated content and citizen journalism, junk news domains satisfy the professionalism criterion because they purposefully refrain from providing clear information about real authors, editors, publishers, and owners, and they do not publish corrections of debunked information” (p. 176). Procedure: - Systematically checked the about pages of domains: Contact information, information about ownership and editors, and other information relating to professional standards - Reviewed whether the sources appeared in third-party fact-checking reports - Checked whether sources published corrections of fact-checked reporting. Examples: zerohedge.com, conservative- fighters.org, deepstatenation.news Counterfeit refers to the layout and design of the domain itself “(…) [S]ources mimic established news reporting by using certain fonts, having branding, and employing content strategies. (…) Junk news is stylistically disguised as professional news by the inclusion of references to news agencies and credible sources as well as headlines written in a news tone with date, time, and location stamps. In the most extreme cases, outlets will copy logos and counterfeit entire domains” (p. 176). Procedure: - Systematically reviewed organizational information about the owner and headquarters by checking sources like Wikipedia, the WHOIS database, and third-party fact-checkers (like Politico or MediaBiasFactCheck) - Consulted country-specific expert knowledge of the media landscape in the US to identify counterfeiting websites. Examples: politicoinfo.com, NBC.com.co Style refers to the content of the domain as a whole “ (…) [S]tyle is concerned with the literary devices and language used throughout news reporting. (…) Designed to systematically manipulate users for political purposes, junk news sources deploy propaganda techniques to persuade users at an emotional, rather than cognitive, level and employ techniques that include using emotionally driven language with emotive expressions and symbolism, ad hominem attacks, misleading headlines, exaggeration, excessive capitalization, unsafe generalizations, logical fallacies, moving images and lots of pictures or mobilizing memes, and innuendo (Bernays, 1928; Jowette & O’Donnell, 2012; Taylor, 2003). (…) Stylistically, problematic sources will employ propaganda and clickbait techniques to varying degrees. As a result, determining style can be highly complex and context dependent” (p. 177). Procedure: - Examined at least five stories on the front page of each news source in depth during the US presidential campaign in 2016 and the SOTU address in 2018 - Checked the headlines of the stories and the content of the articles for literary and visual propaganda devices - Considered as stylistically problematic if three of the five stories systematically exhibited elements of propaganda Examples: 100percentfedup.com, barenakedislam.com, theconservativetribune.com, dangerandplay.com Credibility refers to the content of the domain as a whole “(…) [S]ources rely on false information or conspiracy theories and do not post corrections” (p. 175). “[They] typically report on unsubstantiated claims and rely on conspiratorial and dubious sources. (…) Junk news sources that satisfy the credibility criterion frequently fail to vet their sources, do not consult multiple sources, and do not fact-check” (p. 178). Procedure: - Examined at least five front page stories and reviewed the sources that were cited - Reviewed pages to see if they included known conspiracy theories on issues such as climate change, vaccination, and “Pizzagate” - Checked third-party fact-checkers for evidence of debunked stories and conspiracy theories Examples: infowars.com, endingthefed.com, thegatewaypundit.com, newspunch.com Bias refers to the content of the domain as a whole “(…) [H]yper-partisan media websites and blogs (…) are highly biased, ideologically skewed, and publish opinion pieces as news. Basing their stories on the same events, these sources manage to convey strikingly different impressions of what actually transpired. It is such systematic differences in the mapping from facts to news reports that we call bias. (…) Bias exists on both sides of the political spectrum. Like determining style, determining bias can be highly complex and context dependent” (pp. 177-178). Procedure: - Checked third-party sources that systematically evaluate media bias - If the domain was not evaluated by a third party, the authors examined the ideological leaning of the sources used to support stories appearing on the domain - Evaluation of the labeling of politicians (are there differences between the left and the right?) - Identified bias created through the omission of unfavorable facts, or through writing that is falsely presented as being objective Examples on the right: breitbart.com, dailycaller.com, infowars.com, truthfeed.com Examples on the left: occupydemocrats.com, addictinginfo.com, bipartisanreport.com Note. The coders reached an intercoder reliability of a Krippendorff’s kappa of 0.89. The label of “junk news” is defined by fulfilling at least three of the five criteria. It refers to sources that deliberately publish misleading, deceptive, or incorrect information packaged as real news. Table 3. Identified types of IRA-associated Twitter accounts by Linvill and Warren (2020) Category Specification Right troll “Twitter-handles broadcast nativist and right-leaning populist messages. These handles’ themes were distinct from mainstream Republicanism. (…) They rarely broadcast traditionally important Republican themes, such as taxes, abortion, and regulation, but often sent divisive messages about mainstream and moderate Republicans. (…) The overwhelming majority of handles, however, had limited identifying information, with profile pictures typically of attractive, young women” (p. 5). Hashtags frequently used by these accounts: #MAGA (i.e., “Make America Great Again,”), #tcot (i.e. “Top Conservative on Twitter), #AmericaFirst, and #IslamKills Left troll “These handles sent socially liberal messages, with an overwhelming focus on cultural identity. (…) They discussed gender and sexual identity (e.g., #LGBTQ) and religious identity (e.g., #MuslimBan), but primarily focused on racial identity. Just as the Right Troll handles attacked mainstream Republican politicians, Left Troll handles attacked mainstream Democratic politicians, particularly Hillary Clinton. (…) It is worth noting that this account type also included a substantial portion of messages which had no clear political motivation” (p. 6). Hashtags frequently used by these accounts: #BlackLivesMatter, #PoliceBrutality, and #BlackSkinIsNotACrime Newsfeed “These handles overwhelmingly presented themselves as U.S. local news aggregators and had descriptive names (…). These accounts linked to legitimate regional news sources and tweeted about issues of local interest (…). A small number of these handles, (…) tweeted about global issues, often with a pro-Russia perspective” (p. 6). Hashtags frequently used by these accounts: #news, #sports, and #local Hashtag gamer “These handles are dedicated almost entirely to playing hashtag games, a popular word game played on Twitter. Users add a hashtag to a tweet (e.g., #ThingsILearnedFromCartoons) and then answer the implied question. These handles also posted tweets that seemed organizational regarding these games (…). Like some tweets from Left Trolls, it is possible such tweets were employed as a form of camouflage, as a means of accruing followers, or both. Other tweets, however, often using the same hashtag as mundane tweets, were socially divisive (…)” (p. 7). Hashtags frequently used by these accounts: #ToDoListBeforeChristmas, #ThingsYouCantIgnore, #MustBeBanned, and #2016In4Words Fearmonger “These accounts spread disinformation regarding fabricated crisis events, both in the U.S. and abroad. Such events included non-existent outbreaks of Ebola in Atlanta and Salmonella in New York, an explosion at the Columbian Chemicals plan in Louisiana, a phosphorus leak in Idaho, as well as nuclear plant accidents and war crimes perpetrated in Ukraine. (…) These accounts typically tweeted a great deal of innocent, often frivolous content (i.e. song lyrics or lines of poetry) which were potentially automated. With this content these accounts often added popular hashtags such as #love (…) and #rap (…). These accounts changed behavior sporadically to tweet disinformation, and that output was produced using a different Twitter client than the one used to produce the frivolous content. (…) The Fearmonger category was the only category where we observed some inconsistency in account activity. A small number of handles tweeted briefly in a manner consistent with the Right Troll category but switched to tweeting as a Fearmonger or vice-versa” (p. 7). Hashtags frequently used by these accounts: #Fukushima2015 and #ColumbianChemicals Note. The categories were identified qualitatively analyzing the content produced and were then refined and explored more detailed via a quantitative analysis. The coders reached a Krippendorff’s alpha intercoder-reliability of 0.92. References Bradshaw, S., Howard, P. N., Kollanyi, B., & Neudert, L.?M. (2020). Sourcing and automation of political news and information over social media in the United States, 2016-2018. Political Communication, 37(2), 173–193. Brennen, J. S., Simon, F. M., Howard, P. N. [P. N.], & Nielsen, R. K. (2020). Types, sources, and claims of covid-19 misinformation. Reuters Institute. Retrieved from http://www.primaonline.it/wp-content/uploads/2020/04/COVID-19_reuters.pdf Fletcher, R. (2018). Misinformation and disinformation unpacked. Reuters Institute. Retrieved from http://www.digitalnewsreport.org/survey/2018/misinformation-and-disinformation-unpacked/ Linvill, D. L., & Warren, P. L. (2020). Troll factories: Manufacturing specialized disinformation on Twitter. Political Communication, 1–21. Neudert, L.?M., Howard, P., & Kollanyi, B. (2019). Sourcing and automation of political news and information during three European elections. Social Media + Society, 5(3). https://doi.org/10.1177/2056305119863147 Wardle, C. (2019). First Draft's essential guide to understanding information disorder. UK: First Draft News. Retrieved from https://firstdraftnews.org/wp-content/uploads/2019/10/Information_Disorder_Digital_AW.pdf?x76701

As I sit here, the radio announcer announces a feature on the forthcoming Big Brother series, another chance to engage in this collective shared experience, another opportunity to revel in your very own voyeuristic impulse, what once was private is now made public. Curiously it’s almost fifteen years ago since I released the first Scanner recordings Scanner 1 [1992] and Scanner 2 [1993] featuring the intercepted cellular phone conversations of unsuspecting talkers, which I edited into minimalist musical settings as if they were instruments, bringing into focus issues of privacy and the dichotomy between the public and the private spectrum. Sometimes the high frequency of cellular noise would pervade the atmosphere, at other junctures it would erupt into words and melt down to radio hiss. Intercepted in the data stream, transmissions would blend, blurring the voices and rupturing the light, creating audio transparencies of dreamy, cool ambience. In many ways they pre-empted our reality culture as it exists today. Having the technology to peel open virtually any zone of information and consume the contents, I used the scanner device itself – a modestly sophisticated radio receiver – to explore the relationship between the public and private spheres. Working with sound in this manner suggested a means of mapping the city, in which the scanner device provided an anonymous window into reality, cutting and pasting information to structure an alternative vernacular. It was a rare opportunity to record experience and highlight the threads of desire and interior narrative that we weave into our everyday lives. The sounds of an illicit affair, a liaison with a prostitute, a drug deal or a simple discussion of “what’s for dinner” all exist within an indiscriminate ocean of signals flying overhead, but just beyond our reach. Applying the tools in this manner, I was able to twist state-of-the-art technology in unconventional ways to intercept highly personalised and voyeuristic forms of info food: sound recordings, phone scans, modem and Net intercepts, all of which became material for my multi-layered soundscapes. Every live performance, recording or mix that has followed is still in its way a “true” representation of that moment in time and in that way relates to performance art in the temporality of its data – a “Sound Polaroid” – a way of capturing the moment in sound similar to that of a Polaroid camera, which seizes an image and immediately exposes it to permanence of interception. Is there an innate desire to remain invisible and yet hear the world, scanning it for its stories and secrets? Today for our media saturated culture, this almost fetishistic desire to know all, is expressed in the publishing of private communications, of letters, faxes or telephone conversations, giving rise to all kinds of debate on the nature of privacy and the extent to which its protection can be legislated for. Images come to mind from Wim Wender’s film Wings of Desire where the lead character is a fallen angel left on earth to try and understand the madness of mortal behaviour. At various points he is able to pass through public spaces, the library, an underground train, people’s innermost thoughts and concerns become audible to him while he remains invisible to them. It is here that these Scanner CDs mirror this fantasy of the 20th century: to know everything and to have access to all secrets without being observed. This desire continues to inform our entertainment and cultural channels and looks to continue to do so for some years yet. This listening-in and scanning of the private channels has a clear relationship to surveillance, and connects to an aesthetic explored in works such as the seminal video piece, Der Riese – The Giant (1983) where the artist collaged the contents of surveillance cameras from German supermarkets, subway platforms, traffic crossings and shopping centres, using the tools of commercial voyeurism. Without a director, nor actors nor script, this is a dehumanised exploration of a contemporary history of our post-modern times. Connecting the invisible dots between Vertov’s The Man with a Movie Camera and the Rodney King TV footage, this detached work resonates and celebrates new technology’s ability to film and map everything, scanning our landscape for future reference. We watch with a constant anticipation of resolution, of catching a moment, yet the suspension finally gives way to an exquisite boredom, the true revelation of watching others. The film closes with an alien landscape, unmarked by any human presence, moving over a simulated environment, a toy-town yet still patrolled by the power of surveillance. This corporate datasphere, revealed as a kind of digital fingerprint through its storage and distribution, has moved from security and surveillance to entertainment consumption. For me, zooming in on these spaces in between – between language and understanding, between the digital fallout of ones and zeros, between the redundant and undesired flotsam and jetsam of environmental acoustic space, led to a focus towards the cityscape. Scanning technology led towards an understanding and reading of the environment and city in a fresh manner. If an accent suggested a certain class, age or attitude, then how suggestive was the raw sound around these conversations, how influential was the location where each conversation was held? Sound is ever-present, sometimes as a constantly shifting whir, as a damp grain of footsteps, as the drone-like spangle of distant traffic, as the seemingly motionless air that ripples past our ears, or as the elegant stuttering trill of a bird overhead. How influential was this common envelope of space, the environment in which we consume sound and music? How does one define the spaces between music and sound? When we listen to a Walkman, how do we distinguish between that which is intended – the sound carrier – and that which is incidental: passing traffic, the roar of a plane, the screech of a train door, your own footsteps? Whether active (creator) or passive (listener) we set up a virtual space in which we are each free to explore the sonorous and acoustic strata of what is an intimate yet global expression of space, a simple translation of the social transformations wrought by new technologies. Projects that have followed since then have expanded upon these notions. In 1998 Liverpool became this cityscape of focus, where I produced a project, Stopstarting, which explored the acoustic debris of the city, premiering at the International Symposion on Electronic Art (ISEA) conference in September of that year. For this project I chose significant points of sound located in the city, partly based on random questions in interviewing local people, partly out of self-interest. From these I mapped out a walk that took me from one point to another, minidisc in hand, recording the acoustic data in that place, mapping out the city in sound, teasing out the language that the city speaks. I wanted to create, in a sense, a sound work similar to the opening scene in Robert Altman’s movie Short Cuts (1993), in which a helicopter hovers gently over the densely packed city landscape and the film scans into moments in the daily lives of its inhabitants. It is a motion across a city, an architectural electronic scanning of an almost invisible sound wave. Liverpool, like most cities, has its very own unique sound dialect. Historically one can recall the sound of the docks, the railway station, the Cavern Club where the Beatles played their earliest live shows, their brittle tunes floating through the air of memory. As in Der Riese, voices, traffic lights, announcement speakers, buses, building work, footsteps, telephones and cash machines became the key subjects, the lead players, and were manipulated and transformed into a composition that captured this Sound Polaroid of Liverpool at this particular point in 1998. The following year Surface Noise (1999) which explored the wow and flutter of my own city, London; taking people on a red Routemaster bus journey across the city from Big Ben to St. Paul’s Cathedral, where the sheet music of “London Bridge Is Falling Down” became the score and A-Z for both musical and geographical direction following a Cageian use of indeterminacy. Where each note fell onto the map of the city between these two points not only suggested a location at which to record but also a route that the bus would later follow with the public aboard. Performances followed this routing every night for three nights, at intervals throughout the evening, each re-assembling fragments of the city in terms of sound and image, suggesting the slight shifts in tone and shape in similar places but at very different hours, so that a busy West End street at 18:00 would transform into a ghostly emptiness at 21:00. Surface Noise became a form of alternative film soundtrack, where the film was simply the view through the dusty window of a double-decker bus. Through the brief space of a bus journey the work drew upon many of our common reserves of sonic recognition, mingling the folk memory of the nursery rhyme, the background roar of traffic and the private sounds we make, secure in the knowledge that no one else is listening. Most recently I was commissioned to create a work to celebrate Italian film director Michelangelo Antonioni’s 90th birthday. 52 Space (2002) uses sounds of the city of Rome and elements of his movie The Eclipse (1962) to create a soundtrack of an image of a city suspended in time, anonymous and surreal. The resulting work is a distilled narrative of seductive conversation, musical fragments and scanned city soundscapes. Selecting a series of 52 framed images from the closing moments of the film slowed down to a kind of mnemonic slide show and accompanied by audio culled from the movie, processed with twinkling elements from the soundtrack’s original melody, the live performance conveys a complex and mysterious chronicle, offering up a space for contemplation and reflection as the soundtrack weaves an imaginary narrative. It’s almost as if you are gently floating through the city, experiencing this dream-like state. All of my works have explored the hidden resonances and meanings within memory and, in particular, the subtle traces that people and their actions leave behind. My role has often been to discover and reveal these layers of history, scanning across the mediums, so the works are part urban guide, part urban geography and part detective fiction, raising questions about public and private space. Engaging with the tools of surveillance and scanning technology has given rise to an understanding of communication that was otherwise hidden. Revelation followed from a discovery of the possibilities of these devices. Recording and redirecting these moments back into the public stream has enabled me to construct an archaeology of loss, pathos and missed connections, a momentary forgotten past in our digital future, radioactive fossils of sound, image and the imagination. Citation reference for this article MLA Style Rimbaud, Robin. "Scan and Deliver." M/C Journal 8.4 (2005). echo date('d M. Y'); ?> <http://journal.media-culture.org.au/0508/05-rimbaud.php>. APA Style Rimbaud, R. (Aug. 2005) "Scan and Deliver," M/C Journal, 8(4). Retrieved echo date('d M. Y'); ?> from <http://journal.media-culture.org.au/0508/05-rimbaud.php>.

Every act of art is able to reveal, balance and revive the relations between a territory and its inhabitants (François Davin, Southern Forest Sculpture Walk Catalogue)Introducing the Understory Art in Nature TrailIn February 2015, a colossal wildfire destroyed 98,300 hectares of farm and bushland surrounding the town of Northcliffe, located 365 km south of Perth, Western Australia (WA). As the largest fire in the recorded history of the southwest region (Southern Forest Arts, After the Burn 8), the disaster attracted national attention however the extraordinary contribution of local knowledge in saving a town considered by authorities to be “undefendable” (Kennedy) is yet to be widely appreciated. In accounting for a creative scene that survived the conflagration, this case study sees culture mobilised as a socioeconomic resource for conservation and the healing of community spirit.Northcliffe (population 850) sits on a coastal plain that hosts majestic old-growth forest and lush bushland. In 2006, Southern Forest Arts (SFA) dedicated a Southern Forest Sculpture Walk for creative professionals to develop artworks along a 1.2 km walk trail through pristine native forest. It was re-branded “Understory—Art in Nature” in 2009; then “Understory Art in Nature Trail” in 2015, the understory vegetation layer beneath the canopy being symbolic of Northcliffe’s deeply layered caché of memories, including “the awe, love, fear, and even the hatred that these trees have provoked among the settlers” (Davin in SFA Catalogue). In the words of the SFA Trailguide, “Every place (no matter how small) has ‘understories’—secrets, songs, dreams—that help us connect with the spirit of place.”In the view of forest arts ecologist Kumi Kato, “It is a sense of place that underlies the commitment to a place’s conservation by its community, broadly embracing those who identify with the place for various reasons, both geographical and conceptual” (149). In bioregional terms such communities form a terrain of consciousness (Berg and Dasmann 218), extending responsibility for conservation across cultures, time and space (Kato 150). A sustainable thematic of place must also include livelihood as the third party between culture and nature that establishes the relationship between them (Giblett 240). With these concepts in mind I gauge creative impact on forest as place, and, in turn, (altered) forest’s impact on people. My abstraction of physical place is inclusive of humankind moving in dialogic engagement with forest. A mapping of Understory’s creative activities sheds light on how artists express physical environments in situated creative practices, clusters, and networks. These, it is argued, constitute unique types of community operating within (and beyond) a foundational scene of inspiration and mystification that is metaphorically “rising from the ashes.” In transcending disconnectedness between humankind and landscape, Understory may be understood to both culturalise nature (as an aesthetic system), and naturalise culture (as an ecologically modelled system), to build on a trope introduced by Feld (199). Arguably when the bush is cultured in this way it attracts consumers who may otherwise disconnect from nature.The trail (henceforth Understory) broaches the histories of human relations with Northcliffe’s natural systems of place. Sub-groups of the Noongar nation have inhabited the southwest for an estimated 50,000 years and their association with the Northcliffe region extends back at least 6,000 years (SFA Catalogue; see also Crawford and Crawford). An indigenous sense of the spirit of forest is manifest in Understory sculpture, literature, and—for the purpose of this article—the compilation CD Canopy: Songs for the Southern Forests (henceforth Canopy, Figure 1).As a cultural and environmental construction of place, Canopy sustains the land with acts of seeing, listening to, and interpreting nature; of remembering indigenous people in the forest; and of recalling the hardships of the early settlers. I acknowledge SFA coordinator and Understory custodian Fiona Sinclair for authorising this investigation; Peter Hill for conservation conversations; Robyn Johnston for her Canopy CD sleeve notes; Della Rae Morrison for permissions; and David Pye for discussions. Figure 1. Canopy: Songs for the Southern Forests (CD, 2006). Cover image by Raku Pitt, 2002. Courtesy Southern Forest Arts, Northcliffe, WA.Forest Ecology, Emotion, and ActionEstablished in 1924, Northcliffe’s ill-founded Group Settlement Scheme resulted in frontier hardship and heartbreak, and deforestation of the southwest region for little economic return. An historic forest controversy (1992-2001) attracted media to Northcliffe when protesters attempting to disrupt logging chained themselves to tree trunks and suspended themselves from branches. The signing of the Western Australian Regional Forest Agreement in 1999 was followed, in 2001, by deregulation of the dairy industry and a sharp decline in area population.Moved by the gravity of this situation, Fiona Sinclair won her pitch to the Manjimup Council for a sound alternative industry for Northcliffe with projections of jobs: a forest where artists could work collectively and sustainably to reveal the beauty of natural dimensions. A 12-acre pocket of allocated Crown Land adjacent to the town was leased as an A-Class Reserve vested for Education and Recreation, for which SFA secured unified community ownership and grants. Conservation protocols stipulated that no biomass could be removed from the forest and that predominantly raw, natural materials were to be used (F. Sinclair and P. Hill, personal interview, 26 Sep. 2014). With forest as prescribed image (wider than the bounded chunk of earth), Sinclair invited the artists to consider the themes of spirituality, creativity, history, dichotomy, and sensory as a basis for work that was to be “fresh, intimate, and grounded in place.” Her brief encouraged artists to work with humanity and imagination to counteract residual community divisiveness and resentment. Sinclair describes this form of implicit environmentalism as an “around the back” approach that avoids lapsing into political commentary or judgement: “The trail is a love letter from those of us who live here to our visitors, to connect with grace” (F. Sinclair, telephone interview, 6 Apr. 2014). Renewing community connections to local place is essential if our lives and societies are to become more sustainable (Pedelty 128). To define Northcliffe’s new community phase, artists respected differing associations between people and forest. A structure on a karri tree by Indigenous artist Norma MacDonald presents an Aboriginal man standing tall and proud on a rock to become one with the tree and the forest: as it was for thousands of years before European settlement (MacDonald in SFA Catalogue). As Feld observes, “It is the stabilizing persistence of place as a container of experiences that contributes so powerfully to its intrinsic memorability” (201).Adhering to the philosophy that nature should not be used or abused for the sake of art, the works resonate with the biorhythms of the forest, e.g. functional seats and shelters and a cascading retainer that directs rainwater back to the resident fauna. Some sculptures function as receivers for picking up wavelengths of ancient forest. Forest Folk lurk around the understory, while mysterious stone art represents a life-shaping force of planet history. To represent the reality of bushfire, Natalie Williamson’s sculpture wraps itself around a burnt-out stump. The work plays with scale as small native sundew flowers are enlarged and a subtle beauty, easily overlooked, becomes apparent (Figure 2). The sculptor hopes that “spiders will spin their webs about it, incorporating it into the landscape” (SFA Catalogue).Figure 2. Sundew. Sculpture by Natalie Williamson, 2006. Understory Art in Nature Trail, Northcliffe, WA. Image by the author, 2014.Memory is naturally place-oriented or at least place-supported (Feld 201). Topaesthesia (sense of place) denotes movement that connects our biography with our route. This is resonant for the experience of regional character, including the tactile, olfactory, gustatory, visual, and auditory qualities of a place (Ryan 307). By walking, we are in a dialogue with the environment; both literally and figuratively, we re-situate ourselves into our story (Schine 100). For example, during a summer exploration of the trail (5 Jan. 2014), I intuited a personal attachment based on my grandfather’s small bush home being razed by fire, and his struggle to support seven children.Understory’s survival depends on vigilant controlled (cool) burns around its perimeter (Figure 3), organised by volunteer Peter Hill. These burns also hone the forest. On 27 Sept. 2014, the charred vegetation spoke a spring language of opportunity for nature to reassert itself as seedpods burst and continue the cycle; while an autumn walk (17 Mar. 2016) yielded a fresh view of forest colour, patterning, light, shade, and sound.Figure 3. Understory Art in Nature Trail. Map Created by Fiona Sinclair for Southern Forest Sculpture Walk Catalogue (2006). Courtesy Southern Forest Arts, Northcliffe, WA.Understory and the Melody of CanopyForest resilience is celebrated in five MP3 audio tours produced for visitors to dialogue with the trail in sensory contexts of music, poetry, sculptures and stories that name or interpret the setting. The trail starts in heathland and includes three creek crossings. A zone of acacias gives way to stands of the southwest signature trees karri (Eucalyptus diversicolor), jarrah (Eucalyptus marginata), and marri (Corymbia calophylla). Following a sheoak grove, a riverine environment re-enters heathland. Birds, insects, mammals, and reptiles reside around and between the sculptures, rendering the earth-embedded art a fusion of human and natural orders (concept after Relph 141). On Audio Tour 3, Songs for the Southern Forests, the musician-composers reflect on their regionally focused items, each having been birthed according to a personal musical concept (the manner in which an individual artist holds the totality of a composition in cultural context). Arguably the music in question, its composers, performers, audiences, and settings, all have a role to play in defining the processes and effects of forest arts ecology. Local musician Ann Rice billeted a cluster of musicians (mostly from Perth) at her Windy Harbour shack. The energy of the production experience was palpable as all participated in on-site forest workshops, and supported each other’s items as a musical collective (A. Rice, telephone interview, 2 Oct. 2014). Collaborating under producer Lee Buddle’s direction, they orchestrated rich timbres (tone colours) to evoke different musical atmospheres (Table 1). Composer/Performer Title of TrackInstrumentation1. Ann RiceMy Placevocals/guitars/accordion 2. David PyeCicadan Rhythmsangklung/violin/cello/woodblocks/temple blocks/clarinet/tapes 3. Mel RobinsonSheltervocal/cello/double bass 4. DjivaNgank Boodjakvocals/acoustic, electric and slide guitars/drums/percussion 5. Cathie TraversLamentaccordion/vocals/guitar/piano/violin/drums/programming 6. Brendon Humphries and Kevin SmithWhen the Wind First Blewvocals/guitars/dobro/drums/piano/percussion 7. Libby HammerThe Gladevocal/guitar/soprano sax/cello/double bass/drums 8. Pete and Dave JeavonsSanctuaryguitars/percussion/talking drum/cowbell/soprano sax 9. Tomás FordWhite Hazevocal/programming/guitar 10. David HyamsAwakening /Shaking the Tree /When the Light Comes guitar/mandolin/dobro/bodhran/rainstick/cello/accordion/flute 11. Bernard CarneyThe Destiny Waltzvocal/guitar/accordion/drums/recording of The Destiny Waltz 12. Joel BarkerSomething for Everyonevocal/guitars/percussion Table 1. Music Composed for Canopy: Songs for the Southern Forests.Source: CD sleeve and http://www.understory.com.au/art.php. Composing out of their own strengths, the musicians transformed the geographic region into a living myth. As Pedelty has observed of similar musicians, “their sounds resonate because they so profoundly reflect our living sense of place” (83-84). The remainder of this essay evidences the capacity of indigenous song, art music, electronica, folk, and jazz-blues to celebrate, historicise, or re-imagine place. Firstly, two items represent the phenomenological approach of site-specific sensitivity to acoustic, biological, and cultural presence/loss, including the materiality of forest as a living process.“Singing Up the Land”In Aboriginal Australia “there is no place that has not been imaginatively grasped through song, dance and design, no place where traditional owners cannot see the imprint of sacred creation” (Rose 18). Canopy’s part-Noongar language song thus repositions the ancient Murrum-Noongar people within their life-sustaining natural habitat and spiritual landscape.Noongar Yorga woman Della Rae Morrison of the Bibbulmun and Wilman nations co-founded The Western Australian Nuclear Free Alliance to campaign against the uranium mining industry threatening Ngank Boodjak (her country, “Mother Earth”) (D.R. Morrison, e-mail, 15 July 2014). In 2004, Morrison formed the duo Djiva (meaning seed power or life force) with Jessie Lloyd, a Murri woman of the Guugu Yimidhirr Nation from North Queensland. After discerning the fundamental qualities of the Understory site, Djiva created the song Ngank Boodjak: “This was inspired by walking the trail […] feeling the energy of the land and the beautiful trees and hearing the birds. When I find a spot that I love, I try to feel out the lay-lines, which feel like vortexes of energy coming out of the ground; it’s pretty amazing” (Morrison in SFA Canopy sleeve) Stanza 1 points to the possibilities of being more fully “in country”:Ssh!Ni dabarkarn kooliny, ngank boodja kookoorninyListen, walk slowly, beautiful Mother EarthThe inclusion of indigenous language powerfully implements an indigenous interpretation of forest: “My elders believe that when we leave this life from our physical bodies that our spirit is earthbound and is living in the rocks or the trees and if you listen carefully you might hear their voices and maybe you will get some answers to your questions” (Morrison in SFA Catalogue).Cicadan Rhythms, by composer David Pye, echoes forest as a lively “more-than-human” world. Pye took his cue from the ambient pulsing of male cicadas communicating in plenum (full assembly) by means of airborne sound. The species were sounding together in tempo with individual rhythm patterns that interlocked to create one fantastic rhythm (Australian Broadcasting Corporation, Composer David Pye). The cicada chorus (the loudest known lovesong in the insect world) is the unique summer soundmark (term coined by Truax Handbook, Website) of the southern forests. Pye chased various cicadas through Understory until he was able to notate the rhythms of some individuals in a patch of low-lying scrub.To simulate cicada clicking, the composer set pointillist patterns for Indonesian anklung (joint bamboo tubes suspended within a frame to produce notes when the frame is shaken or tapped). Using instruments made of wood to enhance the rich forest imagery, Pye created all parts using sampled instrumental sounds placed against layers of pre-recorded ambient sounds (D. Pye, telephone interview, 3 Sept. 2014). He takes the listener through a “geographical linear representation” of the trail: “I walked around it with a stopwatch and noted how long it took to get through each section of the forest, and that became the musical timing of the various parts of the work” (Pye in SFA Canopy sleeve). That Understory is a place where reciprocity between nature and culture thrives is, likewise, evident in the remaining tracks.Musicalising Forest History and EnvironmentThree tracks distinguish Canopy as an integrative site for memory. Bernard Carney’s waltz honours the Group Settlers who battled insurmountable terrain without any idea of their destiny, men who, having migrated with a promise of owning their own dairy farms, had to clear trees bare-handedly and build furniture from kerosene tins and gelignite cases. Carney illuminates the culture of Saturday night dancing in the schoolroom to popular tunes like The Destiny Waltz (performed on the Titanic in 1912). His original song fades to strains of the Victor Military Band (1914), to “pay tribute to the era where the inspiration of the song came from” (Carney in SFA Canopy sleeve). Likewise Cathie Travers’s Lament is an evocation of remote settler history that creates a “feeling of being in another location, other timezone, almost like an endless loop” (Travers in SFA Canopy sleeve).An instrumental medley by David Hyams opens with Awakening: the morning sun streaming through tall trees, and the nostalgic sound of an accordion waltz. Shaking the Tree, an Irish jig, recalls humankind’s struggle with forest and the forces of nature. A final title, When the Light Comes, defers to the saying by conservationist John Muir that “The wrongs done to trees, wrongs of every sort, are done in the darkness of ignorance and unbelief, for when the light comes the heart of the people is always right” (quoted by Hyams in SFA Canopy sleeve). Local musician Joel Barker wrote Something for Everyone to personify the old-growth karri as a king with a crown, with “wisdom in his bones.”Kevin Smith’s father was born in Northcliffe in 1924. He and Brendon Humphries fantasise the untouchability of a maiden (pre-human) moment in a forest in their song, When the Wind First Blew. In Libby Hammer’s The Glade (a lover’s lament), instrumental timbres project their own affective languages. The jazz singer intended the accompanying double bass to speak resonantly of old-growth forest; the cello to express suppleness and renewal; a soprano saxophone to impersonate a bird; and the drums to imitate the insect community’s polyrhythmic undercurrent (after Hammer in SFA Canopy sleeve).A hybrid aural environment of synthetic and natural forest sounds contrasts collision with harmony in Sanctuary. The Jeavons Brothers sampled rustling wind on nearby Mt Chudalup to absorb into the track’s opening, and crafted a snare groove for the quirky eco-jazz/trip-hop by banging logs together, and banging rocks against logs. This imaginative use of percussive found objects enhanced their portrayal of forest as “a living, breathing entity.”In dealing with recent history in My Place, Ann Rice cameos a happy childhood growing up on a southwest farm, “damming creeks, climbing trees, breaking bones and skinning knees.” The rich string harmonies of Mel Robinson’s Shelter sculpt the shifting environment of a brewing storm, while White Haze by Tomás Ford describes a smoky controlled burn as “a kind of metaphor for the beautiful mystical healing nature of Northcliffe”: Someone’s burning off the scrubSomeone’s making sure it’s safeSomeone’s whiting out the fearSomeone’s letting me breathe clearAs Sinclair illuminates in a post-fire interview with Sharon Kennedy (Website):When your map, your personal map of life involves a place, and then you think that that place might be gone…” Fiona doesn't finish the sentence. “We all had to face the fact that our little place might disappear." Ultimately, only one house was lost. Pasture and fences, sheds and forest are gone. Yet, says Fiona, “We still have our town. As part of SFA’s ongoing commission, forest rhythm workshops explore different sound properties of potential materials for installing sound sculptures mimicking the surrounding flora and fauna. In 2015, SFA mounted After the Burn (a touring photographic exhibition) and Out of the Ashes (paintings and woodwork featuring ash, charcoal, and resin) (SFA, After the Burn 116). The forthcoming community project Rising From the Ashes will commemorate the fire and allow residents to connect and create as they heal and move forward—ten years on from the foundation of Understory.ConclusionThe Understory Art in Nature Trail stimulates curiosity. It clearly illustrates links between place-based social, economic and material conditions and creative practices and products within a forest that has both given shelter and “done people in.” The trail is an experimental field, a transformative locus in which dedicated physical space frees artists to culturalise forest through varied aesthetic modalities. Conversely, forest possesses agency for naturalising art as a symbol of place. Djiva’s song Ngank Boodjak “sings up the land” to revitalise the timelessness of prior occupation, while David Pye’s Cicadan Rhythms foregrounds the seasonal cycle of entomological music.In drawing out the richness and significance of place, the ecologically inspired album Canopy suggests that the community identity of a forested place may be informed by cultural, economic, geographical, and historical factors as well as endemic flora and fauna. Finally, the musical representation of place is not contingent upon blatant forms of environmentalism. The portrayals of Northcliffe respectfully associate Western Australian people and forests, yet as a place, the town has become an enduring icon for the plight of the Universal Old-growth Forest in all its natural glory, diverse human uses, and (real or perceived) abuses.ReferencesAustralian Broadcasting Commission. “Canopy: Songs for the Southern Forests.” Into the Music. Prod. Robyn Johnston. Radio National, 5 May 2007. 12 Aug. 2014 <http://www.abc.net.au/radionational/programs/intothemusic/canopy-songs-for-the-southern-forests/3396338>.———. “Composer David Pye.” Interview with Andrew Ford. The Music Show, Radio National, 12 Sep. 2009. 30 Jan. 2015 <http://canadapodcasts.ca/podcasts/MusicShowThe/1225021>.Berg, Peter, and Raymond Dasmann. “Reinhabiting California.” Reinhabiting a Separate Country: A Bioregional Anthology of Northern California. Ed. Peter Berg. San Francisco: Planet Drum, 1978. 217-20.Crawford, Patricia, and Ian Crawford. Contested Country: A History of the Northcliffe Area, Western Australia. Perth: UWA P, 2003.Feld, Steven. 2001. “Lift-Up-Over Sounding.” The Book of Music and Nature: An Anthology of Sounds, Words, Thoughts. Ed. David Rothenberg and Marta Ulvaeus. Middletown, CT: Wesleyan UP, 2001. 193-206.Giblett, Rod. People and Places of Nature and Culture. Bristol: Intellect, 2011.Kato, Kumi. “Addressing Global Responsibility for Conservation through Cross-Cultural Collaboration: Kodama Forest, a Forest of Tree Spirits.” The Environmentalist 28.2 (2008): 148-54. 15 Apr. 2014 <http://link.springer.com/article/10.1007/s10669-007-9051-6#page-1>.Kennedy, Sharon. “Local Knowledge Builds Vital Support Networks in Emergencies.” ABC South West WA, 10 Mar. 2015. 26 Mar. 2015 <http://www.abc.net.au/local/stories/2015/03/09/4193981.htm?site=southwestwa>.Morrison, Della Rae. E-mail. 15 July 2014.Pedelty, Mark. Ecomusicology: Rock, Folk, and the Environment. Philadelphia, PA: Temple UP, 2012.Pye, David. Telephone interview. 3 Sep. 2014.Relph, Edward. Place and Placelessness. London: Pion, 1976.Rice, Ann. Telephone interview. 2 Oct. 2014.Rose, Deborah Bird. Nourishing Terrains: Australian Aboriginal Views of Landscape and Wilderness. Australian Heritage Commission, 1996.Ryan, John C. Green Sense: The Aesthetics of Plants, Place and Language. Oxford: Trueheart Academic, 2012.Schine, Jennifer. “Movement, Memory and the Senses in Soundscape Studies.” Canadian Acoustics: Journal of the Canadian Acoustical Association 38.3 (2010): 100-01. 12 Apr. 2016 <http://jcaa.caa-aca.ca/index.php/jcaa/article/view/2264>.Sinclair, Fiona. Telephone interview. 6 Apr. 2014.Sinclair, Fiona, and Peter Hill. Personal Interview. 26 Sep. 2014.Southern Forest Arts. Canopy: Songs for the Southern Forests. CD coordinated by Fiona Sinclair. Recorded and produced by Lee Buddle. Sleeve notes by Robyn Johnston. West Perth: Sound Mine Studios, 2006.———. Southern Forest Sculpture Walk Catalogue. Northcliffe, WA, 2006. Unpaginated booklet.———. Understory—Art in Nature. 2009. 12 Apr. 2016 <http://www.understory.com.au/>.———. Trailguide. Understory. Presented by Southern Forest Arts, n.d.———. After the Burn: Stories, Poems and Photos Shared by the Local Community in Response to the 2015 Northcliffe and Windy Harbour Bushfire. 2nd ed. Ed. Fiona Sinclair. Northcliffe, WA., 2016.Truax, Barry, ed. Handbook for Acoustic Ecology. 2nd ed. Cambridge Street Publishing, 1999. 10 Apr. 2016 <http://www.sfu.ca/sonic-studio/handbook/Soundmark.html>.

In the 1960s, especially in the West, art that was revelatory and art that was revealing operated at opposite ends of the aesthetic spectrum. On the side of the revelatory we can think of encounters synonymous with modernism, in which an expressionist painting was revelatory of the Freudian unconscious, or a Barnett Newman the revelatory intensity of the sublime. By contrast, the impulse to reveal in 1960s art was rooted in post-Duchampian practice, implicating artists as different as Lynda Benglis and Richard Hamilton, who mined the potential of an art that was without essence. If revelatory art underscored modernism’s transcendental conviction, critically revealing work tested its discursive rules and institutional conventions. Of course, nothing in history happens as neatly as this suggests, but what is clear is how polarized the language of artistic revelation was throughout the 1960s. With the international spread of minimalism, pop art, and fluxus, provisional reveals eventually dominated art-historical discourse. Aesthetic conviction, with its spiritual undertones, was haunted by its demystification. In the words of Donald Judd: “a work needs only to be interesting” (184).That art galleries could be sites of timely socio-political issues, rather than timeless intuitions undersigned by medium specificity, is one of the more familiar origin stories of postmodernism. Few artists symbolize this shift more than Hans Haacke, whose 2019 exhibition All Connected, at the New Museum, New York, examined the legacy of his outward-looking work. Born in Germany in 1936, and a New Yorker since 1965, Haacke has been linked to the term “institutional critique” since the mid 1980s, after Mel Ramsden’s coining in 1975, and the increased recognition of kindred spirits such as Mierle Laderman Ukeles, Michael Asher, Martha Rosler, Robert Smithson, Daniel Buren, and Marcel Broodthaers. These artists have featured in books and essays by the likes of Benjamin Buchloh, Hal Foster, and Yve-Alain Bois, but they are also known for their own contributions to art discourse, producing hybrid conceptions of the intellectual postmodern artist as historian, critic and curator.Haacke was initially fascinated by kinetic sculpture in the early 1960s, taking inspiration from op art, systems art, and machine-oriented research collectives such as Zero (Germany), Gruppo N (Italy) and GRAV (France, an acronym of Groupe de Recherche d’Art Visuel). Towards the end of the decade he started to produce more overtly socio-political work, creating what would become a classic piece from this period, Gallery-Goers’ Birthplace and Residence Profile, Part 1 (1969). Here, in a solo exhibition at New York’s Howard Wise Gallery, the artist invited viewers to mark their birthplaces and places of residence on a map. Questioning the statistical demography of the Gallery’s avant-garde attendees, the exhibition anticipated the meticulous sociological character of much of his practice to come, grounding New York art – the centre of the art world – in local, social, and economic fabrics.In the forward to the catalogue of All Connected, New Museum Director Lisa Philips claims that Haacke’s survey exhibition provided a chance to reflect on the artist’s prescience, especially given the flourishing of art activism over the last five or so years. Philips pressed the issue of why no other American art institution had mounted a retrospective of his work in three decades, since his previous survey, Unfinished Business, at the New Museum in 1986, at its former, and much smaller, Soho digs (8). It suggests that other institutions have deemed Haacke’s work too risky, generating too much political heat for them to handle. It’s a reputation the artist has cultivated since the Guggenheim Museum famously cancelled his 1971 exhibition after learning his intended work, Shapolsky et al. Manhattan Real Estate Holdings, A Real Time Social System as of May 1, 1971 (1971) involved research into dubious New York real estate dealings. Guggenheim director Thomas Messer defended the censorship at the time, going so far as to describe it as an “alien substance that had entered the art museum organism” (Haacke, Framing 138). Exposé was this substance Messer dare not name: art that was too revealing, too journalistic, too partisan, and too politically viscid. (Three years later, Haacke got his own back with Solomon R. Guggenheim Museum Board of Trustees, 1974, exposing then Guggenheim board members’ connections to the copper industry in Chile, where socialist president Salvador Allende had just been overthrown with US backing.) All Connected foregrounded these institutional reveals from time past, at a moment in 2019 when the moral accountability of the art institution was on the art world’s collective mind. The exhibition followed high-profile protests at New York’s Whitney Museum and Metropolitan Museum of Art, as well as at Sydney’s Museum of Contemporary Art, the Louvre, and the British Museum. These and other arts organisations have increasingly faced pressures, fostered by social media, to end ties with unethical donors, sponsors, and board members, with activist groups protesting institutional affiliations ranging from immigration detention centre management to opioid and teargas manufacturing. An awareness of the limits of individual agency and autonomy undoubtedly defines this era, with social media platforms intensifying the encumbrances of individual, group, and organisational identities. Hans Haacke, Gallery-Goers’ Birthplace and Residence Profile, Part 1, 1969 Hans Haacke, Gallery-Goers’ Birthplace and Residence Profile, Part 2, 1969-71Unfinished BusinessUnderscoring Haacke’s activist credentials, Philips describes him as “a model of how to live ethically and empathetically in the world today”, and as a beacon of light amidst the “extreme political and economic uncertainty” of the present, Trump-presidency-calamity moment (7). This was markedly different to how Haacke’s previous New York retrospective, Unfinished Business, was received, which bore the weight of being the artist’s first museum exhibition in New York following the Guggenheim controversy. In the catalogue to Haacke’s 1986 exhibition, then New Museum director Marcia Tucker introduced his work as a challenge, cautiously claiming that he poses “trenchant questions” and that the institution accepts “the difficulties and contradictions” inherent to any museum staging of his work (6).Philips’s and Tucker’s distinct perspectives on Haacke’s practice – one as heroically ethical, the other as a sobering critical challenge – exemplify broader shifts in the perception of institutional critique (the art of the socio-political reveal) over this thirty-year period. In the words of Pamela M. Lee, between 1986 and 2019 the art world has undergone a “seismic transformation”, becoming “a sphere of influence at once more rapacious, acquisitive, and overweening but arguably more democratizing and ecumenical with respect to new audiences and artists involved” (87). Haacke’s reputation over this period has taken a similar shift, from him being a controversial opponent of art’s autonomy (an erudite postmodern conceptualist) to a figurehead for moral integrity and cohesive artistic experimentation.As Rosalyn Deutsche pointed out in the catalogue to Haacke’s 1986 exhibition, a potential trap of such a retrospective is that, through biographical positioning, Haacke might be seen as an “exemplary political artist” (210). With this, the specific political issues motivating his work would be overshadowed by the perception of the “great artist” – someone who brings single-issue politics into the narrative of postmodern art, but at the expense of the issues themselves. This is exactly what Douglas Crimp discovered in Unfinished Business. In a 1987 reflection on the show, Crimp argued that, when compared with an AIDS-themed display, Homo Video, staged at the New Museum at the same time, reviewers of Haacke’s exhibition tended to analyse his politics “within the context of the individual artist’s body of work … . Political issues became secondary to the aesthetic strategies of the producer” (34). Crimp, whose activism would be at the forefront of his career in subsequent years, was surprised at how Homo Video and Unfinished Business spawned different readings. Whereas works in the former exhibition tended to be addressed in terms of the artists personal and partisan politics, Haacke’s prompted reflection on the aesthetics-politics juxtaposition itself. For Crimp, the fact that “there was no mediation between these two shows”, spoke volumes about the divisions between political and activist art at the time.New York Times critic Michael Brenson, reiterating a comment made by Fredric Jameson in the catalogue for Unfinished Business, describes the timeless appearance of Haacke’s work in 1986, which is “surprising for an artist whose work is in some way about ideology and history” (Brenson). The implication is that the artist gives a surprisingly long aesthetic afterlife to the politically specific – to ordinarily short shelf-life issues. In this mode of critical postmodernism in which we are unable to distinguish clearly between intervening in and merely reproducing the logic of the system, Haacke is seen as an astute director of an albeit ambiguous push and pull between political specificity and aesthetic irreducibility, political externality and the internalist mode of art about art. Jameson, while granting that Haacke’s work highlights the need to reinvent the role of the “ruling class” in the complex, globalised socio-economic situation of postmodernism, claims that it does so as representative of the “new intellectual problematic” of postmodernism. Haacke, according Jameson, stages postmodernism’s “crisis of ‘mapping’” whereby capitalism’s totalizing, systemic forms are “handled” (note that he avoids “critiqued” or “challenged”) by focusing on their manifestation through particular (“micro-public”) institutional means (49, 50).We can think of the above examples as constituting the postmodern version of Haacke, who frames very specific political issues on the one hand, and the limitless incorporative power of appropriative practice on the other. To say this another way, Haacke, circa 1986, points to specific sites of power struggle at the same time as revealing their generic absorption by an art-world system grown accustomed to its “duplicate anything” parameters. For all of his political intent, the artistic realm, totalised in accordance with the postmodern image, is ultimately where many thought his gestures remained. The philosopher turned art critic Arthur Danto, in a negative review of Haacke’s exhibition, portrayed institutional critique as part of an age-old business of purifying art, maintaining that Haacke’s “crude” and “heavy-handed” practice is blind to how art institutions have always relied on some form of critique in order for them to continue being respected “brokers of spirit”. This perception – of Haacke’s “external” critiques merely serving to “internally” strengthen existing art structures – was reiterated by Leo Steinberg. Supportively misconstruing the artist in the exhibition catalogue, Steinberg writes that Haacke’s “political message, by dint of dissonance, becomes grating and shrill – but shrill within the art context. And while its political effectiveness is probably minimal, its effect on Minimal art may well be profound” (15). Hans Haacke, MOMA Poll, 1970 All ConnectedSo, what do we make of the transformed reception of Haacke’s work since the late 1980s: from a postmodern ouroboros of “politicizing aesthetics and aestheticizing politics” to a revelatory exemplar of art’s moral power? At a period in the late 1980s when the culture wars were in full swing and yet activist groups remained on the margins of what would become a “mainstream” art world, Unfinished Business was, perhaps, blindingly relevant to its times. Unusually for a retrospective, it provided little historical distance for its subject, with Haacke becoming a victim of the era’s propensity to “compartmentalize the interpretive registers of inside and outside and the terms corresponding to such spatial­izing coordinates” (Lee 83).If commentary surrounding this 2019 retrospective is anything to go by, politics no longer performs such a parasitic, oppositional or even dialectical relation to art; no longer is the political regarded as a real-world intrusion into the formal, discerning, longue-durée field of aesthetics. The fact that protests inside the museum have become more visible and vociferous in recent years testifies to this shift. For Jason Farrago, in his review of All Connected for the New York Times, “the fact that no person and no artwork stands alone, that all of us are enmeshed in systems of economic and social power, is for anyone under 40 a statement of the obvious”. For Alyssa Battistoni, in Frieze magazine, “if institutional critique is a practice, it is hard to see where it is better embodied than in organizing a union, strike or boycott”.Some responders to All Connected, such as Ben Lewis, acknowledge how difficult it is to extract a single critical or political strategy from Haacke’s body of work; however, we can say that, in general, earlier postmodern questions concerning the aestheticisation of the socio-political reveal no longer dominates the reception of his practice. Today, rather than treating art and politics are two separate but related entities, like form is to content, better ideas circulate, such as those espoused by Bruno Latour and Jacques Rancière, for whom what counts as political is not determined by a specific program, medium or forum, but by the capacity of any actor-network to disrupt and change a normative social fabric. Compare Jameson’s claim that Haacke’s corporate and museological tropes are “dead forms” – through which “no subject-position speaks, not even in protest” (38) – with Battistoni’s, who, seeing Haacke’s activism as implicit, asks the reader: “how can we take the relationship between art and politics as seriously as Haacke has insisted we must?”Crimp’s concern that Unfinished Business perpetuated an image of the artist as distant from the “political stakes” of his work did not carry through to All Connected, whose respondents were less vexed about the relation between art and politics, with many noting its timeliness. The New Museum was, ironically, undergoing its own equity crisis in the months leading up to the exhibition, with newly unionised staff fighting with the Museum over workers’ salaries and healthcare even as it organised to build a new $89-million Rem Koolhaas-designed extension. Battistoni addressed these disputes at-length, claiming the protests “crystallize perfectly the changes that have shaped the world over the half-century of Haacke’s career, and especially over the 33 years since his last New Museum exhibition”. Of note is how little attention Battistoni pays to Haacke’s artistic methods when recounting his assumed solidarity with these disputes, suggesting that works such as Creating Consent (1981), Helmosboro Country (1990), and Standortkultur (Corporate Culture) (1997) – which pivot on art’s public image versus its corporate umbilical cord – do not convey some special aesthetico-political insight into a totalizing capitalist system. Instead, “he has simply been an astute and honest observer long enough to remind us that our current state of affairs has been in formation for decades”.Hans Haacke, News, 1969/2008 Hans Haacke, Wide White Flow, 1967/2008 Showing Systems Early on in the 1960s, Haacke was influenced by the American critic, artist, and curator Jack Burnham, who in a 1968 essay, “Systems Esthetics” for Artforum, inaugurated the loose conceptualist paradigm that would become known as “systems art”. Here, against Greenbergian formalism and what he saw as the “craft fetishism” of modernism, Burnham argues that “change emanates, not from things, but from the way things are done” (30). Burnham thought that emergent contemporary artists were intuitively aware of the importance of the systems approach: the significant artist in 1968 “strives to reduce the technical and psychical distance between his artistic output and the productive means of society”, and pays particular attention to relationships between organic and non-organic systems (31).As Michael Fried observed of minimalism in his now legendary 1967 essay Art and Objecthood, this shift in sixties art – signalled by the widespread interest in the systematic – entailed a turn towards the spatial, institutional, and societal contexts of receivership. For Burnham, art is not about “material entities” that beautify or modify the environment; rather, art exists “in relations between people and between people and the components of their environment” (31). At the forefront of his mind was land art, computer art, and research-driven conceptualist practice, which, against Fried, has “no contrived confines such as the theatre proscenium or picture frame” (32). In a 1969 lecture at the Guggenheim, Burnham confessed that his research concerned not just art as a distinct entity, but aesthetics in its broadest possible sense, declaring “as far as art is concerned, I’m not particularly interested in it. I believe that aesthetics exists in revelation” (Ragain).Working under the aegis of Burnham’s systems art, Haacke was shaken by the tumultuous and televised politics of late-1960s America – a time when, according to Joan Didion, a “demented and seductive vortical tension was building in the community” (41). Haacke cites Martin Luther King’s assassination as an “incident that made me understand that, in addition to what I had called physical and biological systems, there are also social systems and that art is an integral part of the universe of social systems” (Haacke, Conversation 222). Haacke created News (1969) in response to this awareness, comprising a (pre-Twitter) telex machine that endlessly spits out live news updates from wire services, piling up rolls and rolls of paper on the floor of the exhibition space over the course of its display. Echoing Burnham’s idea of the artist as a programmer whose job is to “prepare new codes and analyze data”, News nonetheless presents the museum as anything but immune from politics, and technological systems as anything but impersonal (32).This intensification of social responsibility in Haacke’s work sets him apart from other, arguably more reductive techno-scientific systems artists such as Sonia Sheridan and Les Levine. The gradual transformation of his ecological and quasi-scientific sculptural experiments from 1968 onwards could almost be seen as making a mockery of the anthropocentrism described in Fried’s 1967 critique. Here, Fried claims not only that the literalness of minimalist work amounts to an emphasis on shape and spatial presence over pictorial composition, but also, in this “theatricality of objecthood” literalness paradoxically mirrors (153). At times in Fried’s essay the minimalist art object reads as a mute form of sociality, the spatial presence filled by the conscious experience of looking – the theatrical relationship itself put on view. Fried thought that viewers of minimalism were presented with themselves in relation to the entire world as object, to which they were asked not to respond in an engaged formalist sense but (generically) to react. Pre-empting the rise of conceptual art and the sociological experiments of post-conceptualist practice, Fried, unapprovingly, argues that minimalist artists unleash an anthropomorphism that “must somehow confront the beholder” (154).Haacke, who admits he has “always been sympathetic to so-called Minimal art” (Haacke, A Conversation 26) embraced the human subject around the same time that Fried’s essay was published. While Fried would have viewed this move as further illustrating the minimalist tendency towards anthropomorphic confrontation, it would be more accurate to describe Haacke’s subsequent works as social-environmental barometers. Haacke began staging interactions which, however dry or administrative, framed the interplays of culture and nature, inside and outside, private and public spheres, expanding art’s definition by looking to the social circulation and economy that supported it.Haacke’s approach – which seems largely driven to show, to reveal – anticipates the viewer in a way that Fried would disapprove, for whom absorbed viewers, and the irreduction of gestalt to shape, are the by-products of assessments of aesthetic quality. For Donald Judd, the promotion of interest over conviction signalled scepticism about Clement Greenberg’s quality standards; it was a way of acknowledging the limitations of qualitative judgement, and, perhaps, of knowledge more generally. In this way, minimalism’s aesthetic relations are not framed so much as allowed to “go on and on” – the artists’ doubt about aesthetic value producing this ongoing temporal quality, which conviction supposedly lacks.In contrast to Unfinished Business, the placing of Haacke’s early sixties works adjacent to his later, more political works in All Connected revealed something other than the tensions between postmodern socio-political reveal and modernist-formalist revelation. The question of whether to intervene in an operating system – whether to let such a system go on and on – was raised throughout the exhibition, literally and metaphorically. To be faced with the interactions of physical, biological, and social systems (in Condensation Cube, 1963-67, and Wide White Flow, 1967/2008, but also in later works like MetroMobiltan, 1985) is to be faced with the question of change and one’s place in it. Framing systems in full swing, at their best, Haacke’s kinetic and environmental works suggest two things: 1. That the systems on display will be ongoing if their component parts aren’t altered; and 2. Any alteration will alter the system as a whole, in minor or significant ways. Applied to his practice more generally, what Haacke’s work hinges on is whether or not one perceives oneself as part of its systemic relations. To see oneself implicated is to see beyond the work’s literal forms and representations. Here, systemic imbrication equates to moral realisation: one’s capacity to alter the system as the question of what to do. Unlike the phenomenology-oriented minimalists, the viewer’s participation is not always assumed in Haacke’s work, who follows a more hermeneutic model. In fact, Haacke’s systems are often circular, highlighting participation as a conscious disruption of flow rather than an obligation that emanates from a particular work (148).This is a theatrical scenario as Fried describes it, but it is far from an abandonment of the issue of profound value. In fact, if we accept that Haacke’s work foregrounds intervention as a moral choice, it is closer to Fried’s own rallying cry for conviction in aesthetic judgement. As Rex Butler has argued, Fried’s advocacy of conviction over sceptical interest can be understood as dialectical in the Hegelian sense: conviction is the overcoming of scepticism, in a similar way that Geist, or spirit, for Hegel, is “the very split between subject and object, in which each makes the other possible” (Butler). What is advanced for Fried is the idea of “a scepticism that can be remarked only from the position of conviction and a conviction that can speak of itself only as this scepticism” (for instance, in his attempt to overcome his scepticism of literalist art on the basis of its scepticism). Strong and unequivocal feelings in Fried’s writing are informed by weak and indeterminate feeling, just as moral conviction in Haacke – the feeling that I, the viewer, should do something – emerges from an awareness that the system will continue to function fine without me. In other words, before being read as “a barometer of the changing and charged atmosphere of the public sphere” (Sutton 16), the impact of Haacke’s work depends upon an initial revelation. It is the realisation not just that one is embroiled in a series of “invisible but fundamental” relations greater than oneself, but that, in responding to seemingly sovereign social systems, the question of our involvement is a moral one, a claim for determination founded through an overcoming of the systemic (Fry 31).Haacke’s at once open and closed works suit the logic of our algorithmic age, where viewers have to shift constantly from a position of being targeted to one of finding for oneself. Peculiarly, when Haacke’s online digital polls in All Connected were hacked by activists (who randomized statistical responses in order to compel the Museum “to redress their continuing complacency in capitalism”) the culprits claimed they did it in sympathy with his work, not in spite of it: “we see our work as extending and conversing with Haacke’s, an artist and thinker who has been a source of inspiration to us both” (Hakim). This response – undermining done with veneration – is indicative of the complicated legacy of his work today. Haacke’s influence on artists such as Tania Bruguera, Sam Durant, Forensic Architecture, Laura Poitras, Carsten Höller, and Andrea Fraser has less to do with a particular political ideal than with his unique promotion of journalistic suspicion and moral revelation in forms of systems mapping. It suggests a coda be added to the sentiment of All Connected: all might not be revealed, but how we respond matters. Hans Haacke, Large Condensation Cube, 1963–67ReferencesBattistoni, Alyssa. “After a Contract Fight with Its Workers, the New Museum Opens Hans Haacke’s ‘All Connected’.” Frieze 208 (2019).Bishara, Hakim. “Hans Haacke Gets Hacked by Activists at the New Museum.” Hyperallergic 21 Jan. 2010. <https://hyperallergic.com/538413/hans-haacke-gets-hacked-by-activists-at-the-new-museum/>.Brenson, Michael. “Art: In Political Tone, Works by Hans Haacke.” New York Times 19 Dec. 1988. <https://www.nytimes.com/1986/12/19/arts/artin-political-tone-worksby-hans-haacke.html>.Buchloh, Benjamin. “Hans Haacke: Memory and Instrumental Reason.” Neo-Avantgarde and Culture Industry. Cambridge: MIT P, 2000.Burnham, Jack. “Systems Esthetics.” Artforum 7.1 (1968).Butler, Rex. “Art and Objecthood: Fried against Fried.” Nonsite 22 (2017). <https://nonsite.org/feature/art-and-objecthood>.Carrion-Murayari, Gary, and Massimiliano Gioni (eds.). Hans Haacke: All Connected. 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New York: Routledge, 2018.Haacke, Hans. Hans Haacke: Framing and Being Framed: 7 Works 1970-5. Halifax: P of the Nova Scotia College of Design and New York: New York UP, 1976.———. “Hans Haacke in Conversation with Gary Carrion-Murayari and Massimiliano Gioni.” Hans Haacke: All Connected. New York: Phaidon and New Museum, 2019.Haacke, Hans, et al. “A Conversation with Hans Haacke.” October 30 (1984).Haacke, Hans, and Brian Wallis (eds.). Hans Haacke: Unfinished Business. New York: New Museum of Contemporary Art; Cambridge, Mass: MIT P, 1986.“Haacke’s ‘All Connected.’” Frieze 25 Oct. 2019. <https://frieze.com/article/after-contract-fight-its-workers-new-museum-opens-hans-haackes-all-connected>.Judd, Donald. “Specific Objects.” Complete Writings 1959–1975. Halifax: P of the Nova Scotia College of Design and New York: New York UP, 1965/1975.Lee, Pamela M. “Unfinished ‘Unfinished Business.’” Hans Haacke: All Connected. 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Object segmentation is an important task which is widely employed in many computer vision applications such as object detection, tracking, recognition, and retrieval. It can be seen as a two-phase process: object detection and segmentation. Object segmentation becomes more challenging in case there is no prior knowledge about the object in the scene. In such conditions, visual attention analysis via saliency mapping may offer a mean to predict the object location by using visual contrast, local or global, to identify regions that draw strong attention in the image. However, in such situations as clutter background, highly varied object surface, or shadow, regular and salient object segmentation approaches based on a single image feature such as color or brightness have shown to be insufficient for the task. This work proposes a new salient object segmentation method which uses a depth map obtained from the input image for enhancing the accuracy of saliency mapping. A deep learning-based method is employed for depth map estimation. Our experiments showed that the proposed method outperforms other state-of-the-art object segmentation algorithms in terms of recall and precision. KeywordsSaliency map, Depth map, deep learning, object segmentation References[1] Itti, C. Koch, E. Niebur, A model of saliency-based visual attention for rapid scene analysis, IEEE Transactions on pattern analysis and machine intelligence 20(11) (1998) 1254-1259.[2] Goferman, L. Zelnik-Manor, A. Tal, Context-aware saliency detection, IEEE transactions on pattern analysis and machine intelligence 34(10) (2012) 1915-1926.[3] Kanan, M.H. Tong, L. Zhang, G.W. Cottrell, Sun: Top-down saliency using natural statistics, Visual cognition 17(6-7) (2009) 979-1003.[4] Liu, Z. Yuan, J. Sun, J. Wang, N. Zheng, X. Tang, H.-Y. Shum, Learning to detect a salient object, IEEE Transactions on Pattern analysis and machine intelligence 33(2) (2011) 353-367.[5] Perazzi, P. Krähenbühl, Y. 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Jawahar, Depth really matters: Improving visual salient region detection with depth., in: BMVC, 2013.Li, J. Ye, Y. Ji, H. Ling, J. Yu, Saliency detection on light field, in: Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition, 2014, pp. 2806-2813.Koch, S. Ullman, Shifts in selective visual attention: towards the underlying neural circuitry, in: Matters of intelligence, Springer, 1987, pp. 115-141.Laina, C. Rupprecht, V. Belagiannis, F. Tombari, N. Navab, Deeper depth prediction with fully convolutional residual networks, in: 3D Vision (3DV), 2016 Fourth International Conference on, IEEE, 2016, pp. 239-248.Bruce, J. Tsotsos, Saliency based on information maximization, in: Advances in neural information processing systems, 2006, pp. 155-162.Ren, X. Gong, L. Yu, W. Zhou, M. Ying Yang, Exploiting global priors for rgb-d saliency detection, in: Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition Workshops, 2015, pp. 25-32.Fang, J. Wang, M. Narwaria, P. Le Callet, W. Lin, Saliency detection for stereoscopic images., IEEE Trans. Image Processing 23(6) (2014) 2625-2636.Hou, L. Zhang, Saliency detection: A spectral residual approach, in: Computer Vision and Pattern Recognition, 2007. CVPR’07. IEEE Conference on, IEEE, 2007, pp. 1-8.Guo, Q. Ma, L. Zhang, Spatio-temporal saliency detection using phase spectrum of quaternion fourier transform, in: Computer vision and pattern recognition, 2008. cvpr 2008. ieee conference on, IEEE, 2008, pp. 1-8.Fang, W. Lin, B.S. Lee, C.T. Lau, Z. Chen, C.W. Lin, Bottom-up saliency detection model based on human visual sensitivity and amplitude spectrum, IEEE Transactions on Multimedia 14(1) (2012) 187-198.Lang, T.V. Nguyen, H. Katti, K. Yadati, M. Kankanhalli, S. Yan, Depth matters: Influence of depth cues on visual saliency, in: Computer vision-ECCV 2012, Springer, 2012, pp. 101-115.Zhang, G. Jiang, M. Yu, K. Chen, Stereoscopic visual attention model for 3d video, in: International Conference on Multimedia Modeling, Springer, 2010, pp. 314-324.Wang, M.P. Da Silva, P. Le Callet, V. Ricordel, Computational model of stereoscopic 3d visual saliency, IEEE Transactions on Image Processing 22(6) (2013) 2151-2165.Peng, B. Li, W. Xiong, W. Hu, R. Ji, Rgbd salient object detection: A benchmark and algorithms, in: European Conference on Computer Vision (ECCV), 2014, pp. 92-109.Wu, L. Duan, L. Kong, Rgb-d salient object detection via feature fusion and multi-scale enhancement, in: CCF Chinese Conference on Computer Vision, Springer, 2015, pp. 359-368.Xue, Y. Gu, Y. Li, J. Yang, Rgb-d saliency detection via mutual guided manifold ranking, in: Image Processing (ICIP), 2015 IEEE International Conference on, IEEE, 2015, pp. 666-670.Katz, A. Adler, Depth camera based on structured light and stereo vision, uS Patent App. 12/877,595 (Mar. 8 2012).Chatterjee, G. Molina, D. 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IntroductionNew digital technologies hold promise for equalising access to information and communication for the Deaf community. SMS technology, for example, has helped to equalise deaf peoples’ access to information and made it easier to communicate with both deaf and hearing people (Tane Akamatsu et al.; Power and Power; Power, Power, and Horstmanshof; Valentine and Skelton, "Changing", "Umbilical"; Harper). A wealth of anecdotal evidence and some recent academic work suggests that new media technology is also reshaping deaf peoples’ sense of local and global community (Breivik "Deaf"; Breivik, Deaf; Brueggeman). One focus of research on new media technologies has been on technologies used for point to point communication, including communication (and interpretation) via video (Tane Akamatsu et al.; Power and Power; Power, Power, and Horstmanshof). Another has been the use of multimedia technologies in formal educational setting for pedagogical purposes, particularly English language literacy (e.g. Marshall Gentry et al.; Tane Akamatsu et al.; Vogel et al.). An emphasis on the role of multimedia in deaf education is understandable, considering the on-going highly politicised contest over whether to educate young deaf people in a bilingual environment using a signed language (Swanwick & Gregory). However, the increasing significance of social and participatory media in the leisure time of Westerners suggests that such uses of Web 2.0 are also worth exploring. There have begun to be some academic accounts of the enthusiastic adoption of vlogging by sign language users (e.g. Leigh; Cavander and Ladner) and this paper seeks to add to this important work. Web 2.0 has been defined by its ability to, in Denise Woods’ word, “harness collective intelligence” (19.2) by providing opportunities for users to make, adapt, “mash up” and share text, photos and video. As well as its well-documented participatory possibilities (Bruns), its re-emphasis on visual (as opposed to textual) communication is of particular interest for Deaf communities. It has been suggested that deaf people are a ‘visual variety of the human race’ (Bahan), and the visually rich presents new opportunities for visually rich forms of communication, most importantly via signed languages. The central importance of signed languages for Deaf identity suggests that the visual aspects of interactive multimedia might offer possibilities of maintenance, enhancement and shifts in those identities (Hyde, Power and Lloyd). At the same time, the visual aspects of the Web 2.0 are often audio-visual, such that the increasingly rich resources of the net offer potential barriers as well as routes to inclusion and community (see Woods; Ellis; Cavander and Ladner). In particular, lack of captioning or use of Auslan in video resources emerges as a key limit to the accessibility of the visual Web to deaf users (Cahill and Hollier). In this paper we ask to what extent contemporary digital media might create moments of permeability in what Krentz has called “the hearing line, that invisible boundary separating deaf and hearing people”( 2)”. To provide tentative answers to these questions, this paper will explore the use of participatory digital media by a group of young Deaf people taking part in a small-scale digital moviemaking project in Sydney in 2009. The ProjectAs a starting point, the interdisciplinary research team conducted a video-making course for young deaf sign language users within the Department of Media, Music and Cultural Studies at Macquarie University. The research team was comprised of one deaf and four hearing researchers, with expertise in media and cultural studies, information technology, sign language linguistics/ deaf studies, and signed language interpreting. The course was advertised through the newsletter of partner organization the NSW Deaf Society, via a Sydney bilingual deaf school and through the dense electronic networks of Australian deaf people. The course attracted fourteen participants from NSW, Western Australia and Queensland ranging in age from 10 to 18. Twelve of the participants were male, and two female. While there was no aspiration to gather a representative group of young people, it is worth noting there was some diversity within the group: for example, one participant was a wheelchair user while another had in recent years moved to Sydney from Africa and had learned Auslan relatively recently. Students were taught a variety of storytelling techniques and video-making skills, and set loose in groups to devise, shoot and edit a number of short films. The results were shared amongst the class, posted on a private YouTube channel and made into a DVD which was distributed to participants.The classes were largely taught in Auslan by a deaf teacher, although two sessions were taught by (non-deaf) members of Macquarie faculty, including an AFI award winning director. Those sessions were interpreted into Auslan by a sign language interpreter. Participants were then allowed free creative time to shoot video in locations of their choice on campus, or to edit their footage in the computer lab. Formal teaching sessions lasted half of each day – in the afternoons, participants were free to use the facilities or participate in a range of structured activities. Participants were also interviewed in groups, and individually, and their participation in the project was observed by researchers. Our research interest was in what deaf young people would choose to do with Web 2.0 technologies, and most particularly the visually rich elements of participatory and social media, in a relatively unstructured environment. Importantly, our focus was not on evaluating the effectiveness of multimedia for teaching deaf young people, or the level of literacy deployed by deaf young people in using the applications. Rather we were interested to discover the kinds of stories participants chose to tell, the ways they used Web 2.0 applications and the modalities of communication they chose to use. Given that Auslan was the language of instruction of the course, would participants draw on the tradition of deaf jokes and storytelling and narrate stories to camera in Auslan? Would they use the format of the “mash-up”, drawing on found footage or photographs? Would they make more filmic movies using Auslan dialogue? How would they use captions and text in their movies: as subtitles for Auslan dialogue? As an alternative to signing? Or not at all? Our observations from the project point to the great significance of the visual dimensions of Web 2.0 for the deaf young people who participated in the project. Initially, this was evident in the kind of movies students chose to make. Only one group – three young people in their late teens which included both of the young women in the class - chose to make a dialogue heavy movie, a spoof of Charlie’s Angels, entitled Deaf Angels. This movie included long scenes of the Angels using Auslan to chat together, receiving instruction from “Charlie” in sign language via videophone and recruiting “extras”, again using Auslan, to sign a petition for Auslan to be made an official Australian language. In follow up interviews, one of the students involved in making this film commented “my clip is about making a political statement, while the other [students in the class] made theirs just for fun”. The next group of (three) films, all with the involvement of the youngest class member, included signed storytelling of a sort readily recognisable from signed videos on-line: direct address to camera, with the teller narrating but also taking on the roles of characters and presenting their dialogue directly via the sign language convention of “role shift” - also referred to as constructed action and constructed dialogue (Metzger). One of these movies was an interesting hybrid. The first half of the four minute film had two young actors staging a hold-up at a vending machine, with a subsequent chase and fight scene. Like most of the films made by participants in the class, it included only one line of signed dialogue, with the rest of the narrative told visually through action. However, at the end of the action sequence, with the victim safely dead, the narrative was then retold by one of the performers within a signed story, using conventions typically observed in signed storytelling - such as role shift, characterisation and spatial mapping (Mather & Winston; Rayman; Wilson).The remaining films similarly drew on action and horror genres with copious use of chase and fight scenes and melodramatic and sometimes quite beautiful climactic death tableaux. The movies included a story about revenging the death of a brother; a story about escaping from jail; a short story about a hippo eating a vet; a similar short comprised of stills showing a sequence of executions in the computer lab; and a ghost story. Notably, most of these movies contained very little dialogue – with only one or two lines of signed dialogue in each four to five minute video (with the exception of the gun handshape used in context to represent the object liberally throughout most films). The kinds of movies made by this limited group of people on this one occasion are suggestive. While participants drew on a number of genres and communication strategies in their film making, the researchers were surprised at how few of the movies drew on traditions of signed storytelling or jokes– particularly since the course was targeted at deaf sign language users and promoted as presented in Auslan. Consequently, our group of students were largely drawn from the small number of deaf schools in which Auslan is the main language of instruction – an exceptional circumstance in an Australian setting in which most deaf young people attend mainstream schools (Byrnes et al.; Power and Hyde). Looking across the Hearing LineWe can make sense of the creative choices made by the participants in the course in a number of ways. Although methods of captioning were briefly introduced during the course, iMovie (the package which participants were using) has limited captioning functionality. Indeed, one student, who was involved in making the only clip to include captioning which contextualised the narrative, commented in follow-up interviews that he would have liked more information about captioning. It’s also possible that the compressed nature of the course prevented participants from undertaking the time-consuming task of scripting and entering captions. As well as being the most fun approach to the projects, the use of visual story telling was probably the easiest. This was perhaps exacerbated by the lack of emphasis on scriptwriting (outside of structural elements and broad narrative sweeps) in the course. Greater emphasis on that aspect of film-making would have given participants a stronger foundational literacy for caption-based projectsDespite these qualifications, both the movies made by students and our observations suggest the significance of a shared visual culture in the use of the Web by these particular young people. During an afternoon when many of the students were away swimming, one student stayed in the lab to use the computers. Rather than working on a video project, he spent time trawling through YouTube for clips purporting to show ghost sightings and other paranormal phenomena. He drew these clips to the attention of one of the research team who was present in the lab, prompting a discussion about the believability of the ghosts and supernatural apparitions in the clips. While some of the clips included (uncaptioned) off-screen dialogue and commentary, this didn’t seem to be a barrier to this student’s enjoyment. Like many other sub-genres of YouTube clips – pranks, pratfalls, cute or alarmingly dangerous incidents involving children and animals – these supernatural videos as a genre rely very little on commentary or dialogue for their meaning – just as with the action films that other students drew on so heavily in their movie making. In an E-Tech paper entitled "The Cute Cat Theory of Digital Activism", Ethan Zuckerman suggests that “web 1.0 was invented to allow physicists to share research papers and web 2.0 was created to allow people to share pictures of cute cats”. This comment points out both the Web 2.0’s vast repository of entertaining material in the ‘funny video’genre which is visually based, dialogue free, entertaining material accessible to a wide range of people, including deaf sign language users. In the realm of leisure, at least, the visually rich resources of Web 2.0’s ubiquitous images and video materials may be creating a shared culture in which the line between hearing and deaf people’s entertainment activities is less clear than it may have been in the past. The ironic tone of Zuckerman’s observation, however, alerts us to the limits of a reliance on language-free materials as a route to accessibility. The kinds of videos that the participants in the course chose to make speaks to the limitations as well as resources offered by the visual Web. There is still a limited range of captioned material on You Tube. In interviews, both young people and their teachers emphasised the central importance of access to captioned video on-line, with the young people we interviewed strongly favouring captioned video over the inclusion on-screen of simultaneous signed interpretations of text. One participant who was a regular user of a range of on-line social networking commented that if she really liked the look of a particular movie which was uncaptioned, she would sometimes contact its maker and ask them to add captions to it. Interestingly, two student participants emphasised in interviews that signed video should also include captions so hearing people could have access to signed narratives. These students seemed to be drawing on ideas about “reverse discrimination”, but their concern reflected the approach of many of the student movies - using shared visual conventions that made their movies available to the widest possible audience. All the students were anxious that hearing people could understand their work, perhaps a consequence of the course’s location in the University as an overwhelmingly hearing environment. In this emphasis on captioning rather than sign as a route to making media accessible, we may be seeing a consequence of the emphasis Krentz describes as ubiquitous in deaf education “the desire to make the differences between deaf and hearing people recede” (16). Krentz suggests that his concept of the ‘hearing line’ “must be perpetually retested and re-examined. It reveals complex and shifting relationships between physical difference, cultural fabrication and identity” (7). The students’ movies and attitudes emphasised the reality of that complexity. Our research project explored how some young Deaf people attempted to create stories capable of crossing categories of deafness and ‘hearing-ness’… unstable (like other identity categories) while others constructed narratives that affirmed Deaf Culture or drew on the Deaf storytelling traditions. This is of particular interest in the Web 2.0 environment, given that its technologies are often lauded as having the politics of participation. The example of the Deaf Community asks reasonable questions about the validity of those claims, and it’s hard to escape the conclusion that there is still less than appropriate access and that some users are more equal than others.How do young people handle the continuing lack of material available to the on the Web? The answer repeatedly offered by our young male interviewees was ‘I can’t be bothered’. As distinct from “I can’t understand” or “I won’t go there” this answer, represented a disengagement from demands to identify your literacy levels, reveal your preferred means of communication; to rehearse arguments about questions of access or expose attempts to struggle to make sense of texts that fail to employ readily accessible means of communicating. Neither an admission of failure or a demand for change, CAN’T-BE-BOTHERED in this context offers a cool way out of an accessibility impasse. This easily-dismissed comment in interviews was confirmed in a whole-group discussions, when students came to a consensus that if when searching for video resources on the Net they found video that included neither signing nor captions, they would move on to find other more accessible resources. Even here, though, the ground continues to shift. YouTube recently announced that it was making its auto-captioning feature open to everybody - a machine generated system that whilst not perfect does attempt to make all YouTube videos accessible to deaf people. (Bertolucci).The importance of captioning of non-signed video is thrown into further significance by our observation from the course of the use of YouTube as a search engine by the participants. Many of the students when asked to research information on the Web bypassed text-based search engines and used the more visual results presented on YouTube directly. In research on deaf adolescents’ search strategies on the Internet, Smith points to the promise of graphical interfaces for deaf young people as a strategy for overcoming the English literacy difficulties experienced by many deaf young people (527). In the years since Smith’s research was undertaken, the graphical and audiovisual resources available on the Web have exploded and users are increasingly turning to these resources in their searches, providing new possibilities for Deaf users (see for instance Schonfeld; Fajardo et al.). Preliminary ConclusionsA number of recent writers have pointed out the ways that the internet has made everyday communication with government services, businesses, workmates and friends immeasurably easier for deaf people (Power, Power and Horstmanshof; Keating and Mirus; Valentine and Skelton, "Changing", "Umbilical"). The ready availability of information in a textual and graphical form on the Web, and ready access to direct contact with others on the move via SMS, has worked against what has been described as deaf peoples’ “information deprivation”, while everyday tasks – booking tickets, for example – are no longer a struggle to communicate face-to-face with hearing people (Valentine and Skelton, "Changing"; Bakken 169-70).The impacts of new technologies should not be seen in simple terms, however. Valentine and Skelton summarise: “the Internet is not producing either just positive or just negative outcomes for D/deaf people but rather is generating a complex set of paradoxical effects for different users” (Valentine and Skelton, "Umbilical" 12). They note, for example, that the ability, via text-based on-line social media to interact with other people on-line regardless of geographic location, hearing status or facility with sign language has been highly valued by some of their deaf respondents. They comment, however, that the fact that many deaf people, using the Internet, can “pass” minimises the need for hearing people in a phonocentric society to be aware of the diversity of ways communication can take place. They note, for example, that “few mainstream Websites demonstrate awareness of D/deaf peoples’ information and communication needs/preferences (eg. by incorporating sign language video clips)” ("Changing" 11). As such, many deaf people have an enhanced ability to interact with a range of others, but in a mode favoured by the dominant culture, a culture which is thus unchallenged by exposure to alternative strategies of communication. Our research, preliminary as it is, suggests a somewhat different take on these complex questions. The visually driven, image-rich approach taken to movie making, Web-searching and information sharing by our participants suggests the emergence of a certain kind of on-line culture which seems likely to be shared by deaf and hearing young people. However where Valentine and Skelton suggest deaf people, in order to participate on-line, are obliged to do so, on the terms of the hearing majority, the increasingly visual nature of Web 2.0 suggests that the terrain may be shifting – even if there is still some way to go.AcknowledgementsWe would like to thank Natalie Kull and Meg Stewart for their research assistance on this project, and participants in the course and members of the project’s steering group for their generosity with their time and ideas.ReferencesBahan, B. "Upon the Formation of a Visual Variety of the Human Race. In H-Dirksen L. Baumann (ed.), Open Your Eyes: Deaf Studies Talking. 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Canas. “Do Sign Language Videos Improve Web Navigation for Deaf Signer Users?” Journal of Deaf Studies and Deaf Education 15.3 (2009): 242-262.Harper, Phil. “Networking the Deaf Nation.” Australian Journal of Communication 30.3 (2003): 153-166.Hyde, M., D. Power, and K. Lloyd. "W(h)ither the Deaf Community? Comments on Trevor Johnston’s Population, Genetics and the Future of Australian Sign Language." Sign Language Studies 6.2 (2006): 190-201. Keating, Elizabeth, and Gene Mirus. “American Sign Language in Virtual Space: Interactions between Deaf Users of Computer-Mediated Video.” Language in Society 32.5 (Nov. 2003): 693-714.Krentz, Christopher. Writing Deafness: The Hearing Line in Nineteenth-Century Literature. Chapel Hill, NC: University of North Carolina Press, 2007.Leigh, Irene. A Lens on Deaf Identities. Oxford: Oxford UP. 2009.Marshall Gentry, M., K.M. Chinn, and R.D. Moulton. “Effectiveness of Multimedia Reading Materials When Used with Children Who Are Deaf.” American Annals of the Deaf 5 (2004): 394-403.Mather, S., and E. Winston. "Spatial Mapping and Involvement in ASL Storytelling." In C. Lucas (ed.), Pinky Extension and Eye Gaze: Language Use in Deaf Communities. Washington, DC: Gallaudet University Press, 1998. 170-82.Metzger, M. "Constructed Action and Constructed Dialogue in American Sign Language." In C. Lucas (ed.), Sociolinguistics in Deaf Communities. Washington, DC: Gallaudet University Press, 1995. 255-71.Power, Des, and G. Leigh. "Principles and Practices of Literacy Development for Deaf Learners: A Historical Overview." Journal of Deaf Studies and Deaf Education 5.1 (2000): 3-8.Power, Des, and Merv Hyde. “The Characteristics and Extent of Participation of Deaf and Hard-of-Hearing Students in Regular Classes in Australian Schools.” Journal of Deaf Studies and Deaf Education 7.4 (2002): 302-311.Power, M., and D. 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IntroductionOn 4 December 2016, a man entered a Washington, D.C., pizza parlor armed with an AR-15 assault rifle in an attempt to save the victims of an alleged satanic pedophilia ring run by prominent members of the Democratic Party. While the story had already been discredited (LaCapria), at the time of the incident, nearly half of Trump voters were found to give a measure of credence to the same rumors that had apparently inspired the gunman (Frankovic). Was we will discuss here, the bizarre conspiracy theory known as "Pizzagate" had in fact originated a month earlier on 4chan/pol/, a message forum whose very raison d’être is to protest against “political correctness” of the liberal establishment, and which had recently become a hub for “loose coordination” amongst members the insurgent US ‘alt-right’ movement (Hawley 48). Over a period of 25 hours beginning on 3 November 2016, contributors to the /pol/ forum combed through a cache of private e-mails belonging to Hillary Clinton’s campaign manager John Podesta, obtained by Russian hackers (Franceschi-Bicchierai) and leaked by Julian Assange (Wikileaks). In this short time period contributors to the forum thus constructed the basic elements of a narrative that would be amplified by a newly formed “right-wing media network”, in which the “repetition, variation, and circulation” of “repeated falsehoods” may be understood as an “important driver towards a ‘post-truth’ world” (Benkler et al). Heavily promoted by a new class of right-wing pundits on Twitter (Wendling), the case of Pizzagate prompts us to reconsider the presumed progressive valence of social media protest (Zuckerman).While there is literature, both popular and academic, on earlier protest movements associated with 4chan (Stryker; Olson; Coleman; Phillips), there is still a relative paucity of empirical research into the newer forms of alt-right collective action that have emerged from 4chan. And while there have been journalistic exposés tracing the dissemination of the Pizzagate rumors across social media as well as deconstructing its bizarre narrative (Fisher et al.; Aisch; Robb), as of yet there has been no rigorous analysis of the provenance of this particular story. This article thus provides an empirical study of how the Pizzagate conspiracy theory developed out of a particular set of collective action techniques that were in turn shaped by the material affordances of 4chan’s most active message board, the notorious and highly offensive /pol/.Grammatised Collective ActionOur empirical approach is partially inspired by the limited data-scientific literature of 4chan (Bernstein et al.; Hine et al.; Zannettou et al.), and combines close and distant reading techniques to study how the technical design of 4chan ‘grammatises’ new forms of collective action. Our coinage of grammatised collective action is based on the notion of “grammars of action” from the field of critical information studies, which posits the radical idea that innovations in computational systems can also be understood as “ontological advances” (Agre 749), insofar as computation tends to break the flux of human activity into discrete elements. By introducing this concept our intent is not to minimise individual agency, but rather to emphasise the ways in which computational systems can be conceptualised in terms of an individ­ual-milieu dyad where the “individual carries with it a certain inheritance […] animated by all the potentials that characterise [...] the structure of a physical system” (Simondon 306). Our argument is that grammatisation may be thought to create new kinds of niches, or affordances, for new forms of sociality and, crucially, new forms of collective action — in the case of 4chan/pol/, how anonymity and ephemerality may be thought to afford a kind of post-truth protest.Affordance was initially proposed as a means by which to overcome the dualistic tendency, inherited from phenomenology, to bracket the subject from its environment. Thus, affordance is a relational concept “equally a fact of the environment and a fact of behaviour” (Gibson 129). While, in the strictly materialist sense affordances are “always there” (Gibson 132), their capacity to shape action depends upon their discovery and exploitation by particular forms of life that are capable of perceiving them. It is axiomatic within ethology that forms of life can be understood to thrive in their own dynamic, yet in some real sense ontologically distinct, lifeworlds (von Uexküll). Departing from this axiom, affordances can thus be defined, somewhat confusingly but accurately, as an “invariant combination of variables” (Gibson 134). In the case of new media, the same technological object may afford different actions for specific users — for instance, the uses of an online platform appears differently from the perspective of the individual users, businesses, or a developer (Gillespie). Recent literature within the field of new media has sought to engage with this concept of affordance as the methodological basis for attending to “the specificity of platforms” (Bucher and Helmond 242), for example by focussing on how a platform’s affordances may be used as a "mechanism of governance" (Crawford and Gillespie 411), how they may "foster democratic deliberation" (Halpern and Gibbs 1159), and be implicated in the "production of normativity" (Stanfill 1061).As an anonymous and essentially ephemeral peer-produced image-board, 4chan has a quite simple technical design when compared with the dominant social media platforms discussed in the new media literature on affordances. Paradoxically however in the simplicity of their design 4chan boards may be understood to afford rather complex forms of self-expression and of coordinated action amongst their dedicated users, whom refer to themselves as "anons". It has been noted, for example, that the production of provocative Internet memes on 4chan’s /b/ board — the birthplace of Rickrolling — could be understood as a type of "contested cultural capital", whose “media literate” usage allows anons to demonstrate their in-group status in the absence of any persistent reputational capital (Nissenbaum and Shiffman). In order to appreciate how 4chan grammatises action it is thus useful to study its characteristic affordances, the most notable of which is its renowned anonymity. We should thus begin by noting how the design of the site allows anyone to post anything virtually anonymously so long as comments remain on topic for the given board. Indeed, it was this particular affordance that informed the emergence of the collective identity of the hacktivist group “Anonymous”, some ten years before 4chan became publicly associated with the rise of the alt-right.In addition to anonymity the other affordance that makes 4chan particularly unique is ephemerality. As stated, the design of 4chan is quite straightforward. Anons post comments to ongoing threaded discussions, which start with an original post. Threads with the most recent comments appear first in order at the top of a given board, which result in the previous threads getting pushed down the page. Even in the case of the most popular threads 4chan boards only allow a finite number of comments before threads must be purged. As a result of this design, no matter how popular a discussion might be, once having reached the bump-limit threads expire, moving down the front page onto the second and third page either to be temporarily catalogued or else to disappear from the site altogether (see Image 1 for how popular threads on /pol/, represented in red, are purged after reaching the bump-limit).Image 1: 55 minutes of all 4chan/pol/ threads and their positions, sampled every 2 minutes (Hagen)Adding to this ephemerality, general discussion on 4chan is also governed by moderators — this in spite of 4chan’s anarchic reputation — who are uniquely empowered with the ability to effectively kill a thread, or a series of threads. Autosaging, one of the possible techniques available to moderators, is usually only exerted in instances when the discussion is deemed as being off-topic or inappropriate. As a result of the combined affordances, discussions can be extremely rapid and intense — in the case of the creation of Pizzagate, this process took 25 hours (see Tokmetzis for an account based on our research).The combination of 4chan’s unique affordances of anonymity and ephemerality brings us to a third factor that is crucial in order to understand how it is that 4chan anons cooked-up the Pizzagate story: the general thread. This process involves anons combing through previous discussion threads in order to create a new thread that compiles all the salient details on a given topic often archiving this data with services like Pastebin — an online content hosting service usually used to share snippets of code — or Google Docs since the latter tend to be less ephemeral than 4chan.In addition to keeping a conversation alive after a thread has been purged, in the case of Pizzagate we noticed that general threads were crucial to the process of framing those discussions going forward. While multiple general threads might emerge on a given topic, only one will consolidate the ongoing conversation thereby affording significant authority to a single author (as opposed to the anonymous mass) in terms of deciding on which parts of a prior thread to include or exclude. While general threads occur relatively commonly in 4chan, in the case of Pizzagate, this process seemed to take on the form of a real-time collective research effort that we will refer to as bullshit accumulation.The analytic philosopher Harry Frankfurt argues that bullshit is form of knowledge-production that appears unconcerned with objective truth, and as such can be distinguished from misinformation. Frankfurt sees bullshit as “more ambitious” than misinformation defining it as “panoramic rather than particular” since it is also prepared to “fake the context”, which in his estimation makes bullshit a “greater enemy of the truth” than lies (62, 52). Through an investigation into the origins of Pizzagate on /pol/, we thus are able to understand how grammatised collective action assists in the accumulation of bullshit in the service of a kind of post-truth political protest.Bullshit Accumulation4chan has a pragmatic and paradoxical relationship with belief that has be characterised in terms of kind of quasi-religious ironic collectivism (Burton). Because of this "weaponizing [of] irony" (Wilson) it is difficult to objectively determine to what extent anons actually believed that Pizzagate was real, and in a sense it is beside the point. In combination then with the site’s aforementioned affordances, it is this peculiar relationship with the truth which thus makes /pol/ so uniquely productive of bullshit. Image 2: Original pizzagate post on 4chan/pol/When #Pizzagate started trending on Twitter on 4 November 2017, it became clear that much of the narrative, and in particular the ‘pizza connection’, was based on arcane (if not simply ridiculous) interpretations of a cache of e-mails belonging to Hillary Clinton’s campaign manager John Podesta released by Wikileaks during the final weeks of the campaign. While many of the subsequent journalistic exposé would claim that Pizzagate began on 4chan, they did not explore its origins, perhaps because of the fact that 4chan does not consistently archive its threads. Our analysis overcame this obstacle by using a third party archive, Archive4plebs, which allowed us to pinpoint the first instance of a thread (/pol/) that discussed a connection between the keyword “pizza” and the leaked e-mails (Image 2).Image 3: 4chan/pol/ Pizzagate general threadsStarting with the timestamp of the first thread, we identified a total of 18 additional general threads related to the topic of Pizzagate (see Image 3). This establishes a 25-hour timeframe in which the Pizzagate narrative was formed (from Wednesday 2 November 2016, 22:17:20, until Thursday 3 November 2016, 23:24:01). We developed a timeline (Image 4) identifying 13 key moments in the development of the Pizzagate story such as the first attempts at disseminating the narrative to other platforms such as the Reddit forum r/The_Donald a popular forum whose reactionary politics had arguably set the broader tone for the Trump campaign (Heikkila).Image 4: timeline of the birth of Pizzagate. Design by Elena Aversa, information design student at Density Design Lab.The association between the Clinton campaign and pedophilia came from another narrative on 4chan known as ‘Orgy Island’, which alleged the Clintons flew to a secret island for sex tourism aboard a private jet called "Lolita Express" owned by Jeffrey Epstein, an American financier who had served 13 months in prison for soliciting an underage prostitute. As with the Pizzagate story, this narrative also appears to have developed through the shared infrastructure of Pastebin links included in general posts (Pastebin) often alongside Wikileaks links.Image 5: Clues about “pizza” being investigatedOrgy Island and other stories were thus combined together with ‘clues’, many of which were found in the leaked Podesta e-mails, in order to imagine the connections between pedophila and pizza. It was noticed that several of Podesta’s e-mails, for example, mentioned the phrase ‘cheese pizza’ (see Image 5), which on 4chan had long been used as a code word for ‘child pornography’ , the latter which is banned from the site.Image 6: leaked Podesta e-mail from Marina AbramovicIn another leaked e-mail, for example, sent to Podesta from the renowned performance artist Marina Abramovich (see Image 6), a reference to one of her art projects, entitled ‘Spirit Cooking’ — an oblique reference to the mid-century English occultist Aleister Crowley — was interpreted as evidence of Clinton’s involvement in satanic rituals (see Image 7). In the course of this one-day period then, many if not most of the coordinates for the Pizzagate narrative were thus put into place subsequently to be amplified by a new breed of populist social media activists in protest against a corrupt Democratic establishment.Image 7: /pol/ anon’s reaction to the e-mail in Image 6During its initial inception on /pol/, there was the apparent need for visualisations in order make sense of all the data. Quite early on in the process, for example, one anon posted:my brain is exploding trying to organize the connections. Anyone have diagrams of these connections?In response, anons produced numerous conspiratorial visualisations, such as a map featuring all the child-related businesses in the neighbourhood of the D.C. pizza parlor — owned by the boyfriend of the prominent Democratic strategist David Brock — which seemed to have logos of the same general shape as the symbols apparently used by pedophiles, and whose locations seems furthermore to line up in the shape of a satanic pentagram (see Image 8). Such visualisations appear to have served three purposes: they helped anons to identify connections, they helped them circumvent 4chan’s purging process — indeed they were often hosted on third-party sites such as Imgur — and finally they helped anons to ultimately communicate the Pizzagate narrative to a broader audience.Image 8. Anonymously authored Pizzagate map revealing a secret pedophilia network in D.C.By using an inductive approach to categorise the comments in the general threads a set of non-exclusive codes emerged, which can be grouped into five overarching categories: researching, interpreting, soliciting, archiving and publishing. As visualised in Image 9, the techniques used by anons in the genesis of Pizzagate appears as a kind of vernacular rendition of many of the same “digital methods” that we use as Internet researchers. An analysis of these techniques thus helps us to understanding how a grammatised form of collective action arises out of anons’ negotiations with the affordances of 4chan — most notably the constant purging of threads — and how, in special circumstances, this can lead to bullshit accumulation.Image 9: vernacular digital methods on /pol/ ConclusionWhat this analysis ultimately reveals is how 4chan/pol/’s ephemerality affordance contributed to an environment that is remarkably productive of bullshit. As a type of knowledge-accumulation, bullshit confirms preconceived biases through appealing to emotion — this at the expense of the broader shared epistemic principles, an objective notion of “truth” that arguably forms the foundation for public reason in large and complex liberal societies (Lynch). In this sense, the bullshit of Pizzagate resonates with Hannah Arendt’s analysis of totalitarian discourse which nurtures a conspiratorial redefining of emotional truth as “whatever respectable society had hypocritically passed over, or covered with corruption" (49).As right-wing populism establishes itself evermore firmly in many countries in which technocratic liberalism had formerly held sway, the demand for emotionally satisfying post-truth, will surely keep the new online bullshit factories like /pol/ in business. 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