Journal articles on the topic 'Tactile substitution system'

Spatial navigation within a real 3-D maze was investigated to study space perception on the sole basis of tactile information transmitted by means of a ‘tactile vision substitution system' (TVSS) allowing the conversion of optical images—collected by a micro camera—into ‘tactile images’ via a matrix in contact with the skin. The development of such a device is based on concepts of cerebral and functional plasticity, enabling subjective reproduction of visual images from tactile data processing. Blindfolded sighted subjects had to remotely control the movements of a robot on which the TVSS camera was mounted. Once familiarised with the cues in the maze, the subjects were given two exploration sessions. Performance was analysed according to an objective point of view (exploration time, discrimination capacity), as well as a subjective one (speech). The task was successfully carried out from the very first session. As the subjects took a different path during each navigation, a gradual improvement in performance (discrimination and exploration time) was noted, generating a phenomenon of learning. Moreover, subjective analysis revealed an evolution of the spatialisation process towards distal attribution. Finally, some emotional expressions seemed to reflect the genesis of ‘qualia’ (emotional qualities of stimulation).

Postural control is essential for most activities of daily living. The impairment of this function can be extremely disabling. This work was stimulated by the testimony of a bilateral partial foot amputee who describes his difficulty in maintaining balance while washing his hair in the shower. We postulated that if the postural control system could not rely on accurate and reliable somatosensory inputs from the foot and ankle, as is probably the case following bilateral foot amputation due to the loss of the foot afferents and efferents, the weight of visual and vestibular cues would increase. We therefore assessed if a vestibular-to-tactile sensory substitution device could compensate for this impairment. Two separate experiments were conducted. Experiment 1: The effect of a vestibular-to-tongue tactile biofeedback balance system on the postural stability of this amputee was tested (on a force platform) and compared with a non-amputated, matched control group. The results showed that use of the biofeedback reduced centre of foot (CoP) displacement in all subjects but more spectacularly in the amputee. Experiment 2: The effect of the biofeedback was tested in 16 young healthy adults following a protocol of ankle muscle fatigue (known to alter ankle neuromuscular function and to perturb the control of bipedal posture). The results showed a significant decrease in CoP displacement compared with the control, non-biofeedback condition and a significantly greater effect of the biofeedback in the fatigue than the non-fatigue condition. Taken together, the results of these two studies suggest that an individual with double partial foot amputation was able to improve his balance control thanks to the use of a vestibular-to-tongue tactile biofeedback balance system and that young healthy individuals were able to take advantage of it to reduce the postural destabilisation induced by plantar-flexor muscle fatigue. Further studies are however necessary to confirm this in larger numbers of impaired persons as well as to assess the effectiveness in dynamic situations.

What is the relationship between the ‘haptic’ and the ‘tactile’ when it comes to media? We might question whether there is such a thing as ‘haptic media’; in other words, is there a type of media that invite the attention of one modality rather than another, or that foster certain types of interaction over others? If we were to speak about ‘haptic media’, to what extent does it engage directly (only) with touch, and to what extent does it involve some form of enhancement of another modality? In what ways can haptic media appeal beyond the visuocentric norm of the screen, and therefore to non-normate or disabled users? Further, to what extent does the haptic in particular benefit from ‘sensory substitution’, which is most usually of touch for vision in assisted living technologies for the blind, or of sound for touch for the deaf, for example? Certain historical instances of sensory substitution systems are discussed below, including Norbert Wiener’s ‘hearing glove’ and Bach-Y-Rita’s tactile–visual sensory substitution (TVSS) system, to make a larger argument about the role of haptic technologies, and haptic media, for more inclusive digital interactions.

In this paper, we present the results of an empirical study that aims to evaluate the performance of sighted and blind people to discriminate web page structures using vibrotactile feedback. The proposed visuo-tactile substitution system is based on a portable and economical solution that can be used in noisy and public environments. It converts the visual structures of web pages into tactile landscapes that can be explored on any mobile touchscreen device. The light contrasts overflown by the fingers are dynamically captured, sent to a micro-controller, translated into vibrating patterns that vary in intensity, frequency and temperature, and then reproduced by our actuators on the skin at the location defined by the user. The performance of the proposed system is measured in terms of perception of frequency and intensity thresholds and qualitative understanding of the shapes displayed.

Sensory substitution devices such as The vOICe convert visual imagery into auditory soundscapes and can provide a basic ‘visual’ percept to those with visual impairment. However, it is not known whether technical or perceptual limits dominate the practical efficacy of such systems. By manipulating the resolution of sonified images and asking naïve sighted participants to identify visual objects through a six-alternative forced-choice procedure (6AFC) we demonstrate a ‘ceiling effect’ at 8 × 8 pixels, in both visual and tactile conditions, that is well below the theoretical limits of the technology. We discuss our results in the context of auditory neural limits on the representation of ‘auditory’ objects in a cortical hierarchy and how perceptual training may be used to circumvent these limitations.

The goal of the structural health monitoring community has been to endow physical systems with a nervous system not unlike those commonly found in living organisms. Typically, the structural health monitoring community has attempted to do this by instrumenting structures with a variety of sensors and then applying various signal processing and classification procedures to the data in order to detect the presence of damage, the location of damage, the severity of damage, and to estimate the remaining useful life of the structure. This procedure has had some success, but we are still a long way from achieving the performance of nervous systems found in biology. This is primarily because contemporary classification algorithms do not have the performance required. In many cases, expert judgment is superior to automated classification. This work introduces a new paradigm. We propose interfacing the human nervous system to the distributed sensor network located on the structure and developing new techniques to enable human–machine cooperation. The results from the field of sensory substitution suggest this should be possible. This study investigates a vibro-haptic human–machine interface for structural health monitoring. The investigation was performed using a surrogate three-story structure. The structure features three nonlinearity-inducing bumpers to simulate damage. Accelerometers are placed on each floor to measure the response of the structure to a harmonic base excitation. The accelerometer measurements are preprocessed. The preprocessed data are then encoded as a vibro-tactile stimulus. Human subjects were then subjected to the vibro-tactile stimulus and asked to characterize the damage in the structure.

The effect of stimulus orientation of letters presented either visually or vibrotactually was examined to obtain basic information on sensory substitution using the tactile sense. The reaction time (RT) to identify the letters F and R presented in normal or mirror-image form at four orientations each was measured. In addition, conditions of 0° and 270° of head rotation from vertical and arm rotation from the midline axis were employed. Data from 5 trained subjects showed that vibrotactile RTs were always longer than visual RTs. Stimulus rotation away from normal orientation increased visual RTs significantly but not vibrotactile RTs. Visual orientation effect then seemed to be determined by the body-coordinate system but not the vibrotactile orientation. Although further studies are warranted, from the results of this experiment, any convenient and constant stimulus orientation could be used with a wearable vibrotactile display system to exploit passive touch.

If a sensory nerve is sectioned, it is expected that the centrally deprived projection area should be reduced to silence and atrophy. However, in recent years the capacity of the central nervous system for reorganization has received increasing attention. This article concerns elimination of input from the tactile system on the head of rodents, which has two components, the long vibrissae and the common fur. After early destruction of the vibrissae in newborn rats, the deprived cortex unexpectedly was not significantly reduced because substitution occurred. If only the vibrissae were destroyed, small fur hairs substituted for them. If both vibrissae and small hairs on the muzzle were destroyed, fur hairs of other head regions took over. This shows that early deprivation leads to reorganization in the somatosensory cortex that reveals greater than expected plasticity. Thus the principle of specificity of neural connections, a basic principle of neurology, must be reappraised.

Oral communication comprises one of the most important forms of social interaction. The process of learning the spoken language depends on the hearing, therefore, the total or partial loss of hearing sensitivity hinders such aspect. Digital signal processing techniques with non-invasive character are used for diagnosis, support and improvement of the voice quality of the deaf. Thus, the present study aims to propose and develop a system of analysis and correction of vocal disorders by means of visual and tactile feedback with module implemented in programmable device type FPGA (Field Programmable Gate Array). The results point to the potential of a proposed intervention as a helper for sensory substitution, being based on the monitoring and control of speech, in order to allow for the assessment and remediation by means of an electronic resource, allowing deaf individuals to obtain a support for learning the spoken language. The possibilities for improvements in communication skills observed in this study are dependent on the capability of the device together with the speech therapist, integrating therapies with the support of the family, the time and the motivation of the user, factors that cooperate for the success of this approach.

Background.Common manufactured depth sensors generate depth images that humans normally obtain from their eyes and hands. Various designs converting spatial data into sound have been recently proposed, speculating on their applicability as sensory substitution devices (SSDs).Objective.We tested such a design as a travel aid in a navigation task.Methods.Our portable device (MeloSee) converted 2D array of a depth image into melody in real-time. Distance from the sensor was translated into sound intensity, stereo-modulated laterally, and the pitch represented verticality. Twenty-one blindfolded young adults navigated along four different paths during two sessions separated by one-week interval. In some instances, a dual task required them to recognize a temporal pattern applied through a tactile vibrator while they navigated.Results.Participants learnt how to use the system on both new paths and on those they had already navigated from. Based on travel time and errors, performance improved from one week to the next. The dual task was achieved successfully, slightly affecting but not preventing effective navigation.Conclusions.The use of Kinect-type sensors to implement SSDs is promising, but it is restricted to indoor use and it is inefficient on too short range.

Many philosophers use findings about sensory substitution devices in the grand debate about how we should individuate the senses. The big question is this: Is “vision” assisted by (tactile) sensory substitution really vision? Or is it tactile perception? Or some sui generis novel form of perception? My claim is that sensory substitution assisted “vision” is neither vision nor tactile perception, because it is not perception at all. It is mental imagery: visual mental imagery triggered by tactile sensory stimulation. But it is a special form of mental imagery that is triggered by corresponding sensory stimulation in a different sense modality, which I call “multimodal mental imagery.”

Visual-to-tactile sensory substitution devices are designed to assist visually impaired people by converting visual stimuli into tactile stimuli. The important claim has been made that, after training with these devices, the tactile stimuli can be moved from one body surface to another without any decrease in performance. This claim, although recurrent, has never been empirically investigated. Moreover, studies in the field of tactile perceptual learning suggest that performance improvement transfers only to body surfaces that are closely represented in the somatosensory cortex, i.e. adjacent or homologous contralateral body surfaces. These studies have however mainly used discrimination tasks of stimuli varying along only one feature (e.g., orientation of gratings) whereas, in sensory substitution, tactile information consists of more complex stimuli. The present study investigated the extent to which there is a transfer of tactile letter learning. Participants first underwent a baseline session in which the letters were presented on their belly, thigh, and shin. They were subsequently trained on only one of these body surfaces, and then re-tested on all of them, as a post-training session. The results revealed that performance improvement was the same for both the trained and the untrained surfaces. Moreover, this transfer of perceptual learning was equivalent for adjacent and non-adjacent body surfaces, suggesting that tactile learning transfer occurs independently of the distance on the body. A control study consisting of the same baseline and post-training sessions, without training in between, revealed weaker improvement between the two sessions. The obtained results support the claim that training with sensory substitution devices results in a relative independence from the stimulated body surface.

Current myoelectric prostheses allow transradial amputees to regain voluntary motor control of their artificial limb by exploiting residual muscle function in the forearm. However, the overreliance on visual cues resulting from a lack of sensory feedback is a common complaint. Recently, several groups have provided tactile feedback in upper limb amputees using implanted electrodes, surface nerve stimulation, or sensory substitution. These approaches have led to improved function and prosthesis embodiment. Nevertheless, the provided information remains limited to a subset of the rich sensory cues available to healthy individuals. More specifically, proprioception, the sense of limb position and movement, is predominantly absent from current systems. Here, we show that sensory substitution based on intraneural stimulation can deliver position feedback in real time and in conjunction with somatotopic tactile feedback. This approach allowed two transradial amputees to regain high and close-to-natural remapped proprioceptive acuity, with a median joint angle reproduction precision of 9.1° and a median threshold to detection of passive movements of 9.5°, which was comparable with results obtained in healthy participants. The simultaneous delivery of position information and somatotopic tactile feedback allowed both amputees to discriminate the size and compliance of four objects with high levels of performance (75.5%). These results demonstrate that tactile information delivered via somatotopic neural stimulation and position information delivered via sensory substitution can be exploited simultaneously and efficiently by transradial amputees. This study paves a way to more sophisticated bidirectional bionic limbs conveying richer, multimodal sensations.

Using an article by R. Fish, published a decade ago, as a point of departure, the authors propose that no significant advances in high resolution devices in vision substitution systems have been made since then. They claim that this lack of progress is a consequence of researchers failing to exploit the implications in certain of the theoretical insights on perception. They suggest alternative theoretical approaches which may help to move the work forward, as well as presenting new design criteria. Tactile substitution systems are proposed in preference to cortical implant work, and electrocutaneous transfer is offered in preference to vibrotactile techniques, which are seen as the major reason for the very limited resolution achieved by existing approaches.

Visual sensory substitution devices (SSDs) allow visually-deprived individuals to navigate and recognise the ‘visual world’; SSDs also provide opportunities for psychologists to study modality-independent theories of perception. At present most research has focused on encoding greyscale vision. However at the low spatial resolutions received by SSD users, colour information enhances object-ground segmentation, and provides more stable cues for scene and object recognition. Many attempts have been made to encode colour information in tactile or auditory modalities, but many of these studies exist in isolation. This review brings together a wide variety of tactile and auditory approaches to representing colour. We examine how each device constructs ‘colour’ relative to veridical human colour perception and report previous experiments using these devices. Theoretical approaches to encoding and transferring colour information through sound or touch are discussed for future devices, covering alternative stimulation approaches, perceptually distinct dimensions and intuitive cross-modal correspondences.

The last 50 years or so has seen great optimism concerning the potential of sensory substitution and augmentation devices to enhance the lives of those with (or even those without) some form of sensory loss (in practice, this has typically meant those who are blind or suffering from low vision). One commonly discussed solution for those individuals who are blind has been to use one of a range of tactile–visual sensory substitution systems that represent objects captured by a camera as outline images on the skin surface in real-time (what Loomis, Klatzky and Giudice, 2012, term general-purpose sensory substitution devices). However, despite the fact that touch, like vision, initially codes information spatiotopically, I would like to argue that a number of fundamental perceptual, attentional, and cognitive limitations constraining the processing of tactile information mean that the skin surface is unlikely ever to provide such general-purpose sensory substitution capabilities. At present, there is little evidence to suggest that the extensive cortical plasticity that has been demonstrated in those who have lost (or never had) a sense can do much to overcome the limitations associated with trying to perceive high rates of spatiotemporally varying information presented via the skin surface (no matter whether that surface be the back, stomach, forehead, or tongue). Instead, the use of the skin will likely be restricted to various special-purpose devices that enable specific activities such as navigation, the control of locomotion, pattern perception, etc.

The objective of this research was to study the capabilities of sensory substitution for force feedback through the tactile and auditory senses for teleoperation tasks, with and without time delay. The motivation and potential benefits of sensory substitution for force feedback with vibrotactile and auditory displays are discussed. Teleoperator experiments that examined the presentation of basic force information through object contact tasks indicated that operator performance was improved by using the vibrotactile and auditory displays to present force information. Further, the vibrotactile and auditory displays compared favorably to traditional bilateral force feedback. Common manipulation experiments with peg-in-hole tasks of varying complexity were also conducted and showed that when the subjects' view was fully obstructed, the subjects were able to successfully complete the task by using either of the sensory substitution displays. Sensory substitution was also tested in the presence of a 3 sec time delay and significantly improved performance without instabilities.

At present, most of the reported planar pentacoordinate clusters are similar to the isoelectronic substitution of CAl5+, with 18 counting electrons. Meanwhile, the regular planar pentacoordinate boron systems are rarely reported. Hereby, a sulphur-bridged BAl5S5+ system with a five-pointed star configuration and 17 counting electrons is identified at the global energy minimum through the particle-swarm optimization method, based on the previous recognition on bridged sulphur as the peripheral tactics to the stable planar tetracoordinate carbon and boron. Its outstanding stability has been demonstrated by thermodynamic analysis at 900 K, electronic properties and chemical bonding analysis. This study provides adequately theoretical basis and referable data for its experimental capture and testing.

The present aim was to investigate functionality of vibrotactile stimulation in mimicry-based behavioral regulation during physical exercise. Vibrotactile stimuli communicated instructions from an instructor to an exerciser to perform lower extremity movements. A wireless prototype was tested first in controlled laboratory conditions (Study 1) and was followed by a user study (Study 2) that was conducted in a group exercise situation for elderly participants with a new version of the system with improved construction and extended functionality. The results of Study 1 showed that vibrotactile instructions were successful in both supplementing and substituting visual knee lift instructions. Vibrotactile stimuli were accurately recognized, and exercise with the device received affirmative ratings. Interestingly, tactile stimulation appeared to stabilize acceleration magnitude of the knee lifts in comparison to visual instructions. In Study 2 it was found that user experience of the system was mainly positive by both the exercisers and their instructors. For example, exercise with vibrotactile instructions was experienced as more motivating than conventional exercise session. Together the results indicate that tactile instructions could increase possibilities for people having difficulties in following visual and auditory instructions to take part in mimicry-based group training. Both studies also revealed development areas that were primarily related to a slight delay in triggering the vibrotactile stimulation.

We present a quantitative method for characterizing the effectiveness of a balance prosthesis based on tactile vibrators. The balance prosthesis used an array of 12 tactile vibrators (tactors) placed on the anterior and posterior surfaces of the torso to provide body orientation feedback related to the angular position and velocity of anterior-posterior body sway. Body sway was evoked in subjects with normal sensory function and in vestibular loss subjects by rotating the support surface upon which a test subject stood with eyes closed. Tests were performed both with (tactor trials) and without (control trials) the prosthesis activated. Several amplitudes of support surface stimulation were presented with each stimulus following a pseudorandom motion profile. For each stimulus amplitude, a transfer function analysis characterized the amplitude (gain) and timing (phase) of body sway evoked by the support surface stimulus over a frequency range of 0.017 to 2.2 Hz. A comparison of transfer function results from the control trials of normal subjects with results from tactor trials of vestibular loss subjects provided a quantitative measure of the effectiveness of the balance prosthesis in substituting for missing vestibular information. Although this method was illustrated using a specific balance prosthesis, the method is general and could be applied to balance prostheses that utilize other technology.

Reading is a unique human cognitive skill and its acquisition was proven to extensively affect both brain organization and neuroanatomy. Differently from western sighted individuals, literacy rates via tactile reading systems, such as Braille, are declining, thus imposing an alarming threat to literacy among non-visual readers. This decline is due to many reasons including the length of training needed to master Braille, which must also include extensive tactile sensitivity exercises, the lack of proper Braille instruction and the high costs of Braille devices. The far-reaching consequences of low literacy rates, raise the need to develop alternative, cheap and easy-to-master non-visual reading systems. To this aim, we developed OVAL, a new auditory orthography based on a visual-to-auditory sensory-substitution algorithm. Here we present its efficacy for successful words-reading, and investigation of the extent to which redundant features defining characters (i.e., adding specific colors to letters conveyed into audition via different musical instruments) facilitate or impede auditory reading outcomes. Thus, we tested two groups of blindfolded sighted participants who were either exposed to a monochromatic or to a color version of OVAL. First, we showed that even before training, all participants were able to discriminate between 11 OVAL characters significantly more than chance level. Following 6 hours of specific OVAL training, participants were able to identify all the learned characters, differentiate them from untrained letters, and read short words/pseudo-words of up to 5 characters. The Color group outperformed the Monochromatic group in all tasks, suggesting that redundant characters’ features are beneficial for auditory reading. Overall, these results suggest that OVAL is a promising auditory-reading tool that can be used by blind individuals, by people with reading deficits as well as for the investigation of reading specific processing dissociated from the visual modality.

Currently there is no veritable role for design, designers, or design methodology associated with ‘organizational design’. Rather, the design of an organization is a byproduct of tactics and management bureaucracy. In postmodern, post-industrial, and post-capitalist organizational entities the role of design is subordinate and residual at best. In this concept paper the authors demonstrate that (a) an entrepreneurial and organic perspective on design is challenged by the paradigmatic and transformational effects of information and information technology on firm; and (b) that the apparent problematic absence of a design theory and the existence of the firm can be reconciled via the involvement of design managers with their presumed design-methodological grounding. They advocate substituting the anachronistic evolutionary speciation of organizational design with a perspective based on ‘intelligent design’.

In this paper, a new Playfair cipher built on bits level symmetric key cryptographic was proposed for the purpose of converting pairs of letters (digraphs) into single letters. The proposed algorithm is capable to overcome many of the shortcoming and vulnerabilities that exist in the current classical version of Playfair algorithm. The Playfair cipher is exceedingly complex than a classical substitution cipher, but still simple to hack using automated tactics. It is famous as a digraph cipher because two letters are exchanged by other two letters. This destroys any solo letter occurrence statistics, but the digraph statistics still unaffected (frequencies of two letters). Unluckily letter pairs have a flatter distribution than the one letter frequencies, so this intricacy matters for solving the code using pen and paper procedures. The suggested encryption process is conducted as follows; letters are first arranged in a spiral manner in Polybius square, afterwards, each pair will be replaced utilizing before-after technique if we are arranging pairs horizontally and down-up technique (vertically). The former process produces pairs of Plaintext that will be converted to binary bit stream then will be divided over blocks with stable sizes. Bits of these blocks are taken from pairs then fit them into square matrix of suitable order to put the concept of row-wise and revers row-wise matrix. Bits of this matrix are split into 2x2 square matrixes. The sub-matrixes are formed 8 bits. Here the XNOR operation is taken into consideration for bitwise operation to generate the keys for decryption and produce the cipher-text.

Abstract The last few years have seen an explosive growth of research interest in the crossmodal correspondences, the sometimes surprising associations that people experience between stimuli, attributes, or perceptual dimensions, such as between auditory pitch and visual size, or elevation. To date, the majority of this research has tended to focus on audiovisual correspondences. However, a variety of crossmodal correspondences have also been demonstrated with tactile stimuli, involving everything from felt shape to texture, and from weight through to temperature. In this review, I take a closer look at temperature-based correspondences. The empirical research not only supports the existence of robust crossmodal correspondences between temperature and colour (as captured by everyday phrases such as ‘red hot’) but also between temperature and auditory pitch. Importantly, such correspondences have (on occasion) been shown to influence everything from our thermal comfort in coloured environments through to our response to the thermal and chemical warmth associated with stimulation of the chemical senses, as when eating, drinking, and sniffing olfactory stimuli. Temperature-based correspondences are considered in terms of the four main classes of correspondence that have been identified to date, namely statistical, structural, semantic, and affective. The hope is that gaining a better understanding of temperature-based crossmodal correspondences may one day also potentially help in the design of more intuitive sensory-substitution devices, and support the delivery of immersive virtual and augmented reality experiences.

Purpose – The purpose of this paper is to examine the shifting roles of medical professionals as stakeholders in opioid substitution treatment (OST) policies and practices in Denmark and the UK within the past 15 years. Design/methodology/approach – The paper is based on literature reviews, documentary analyses and key informant interviews with a range of stakeholders involved in OST and policy in Denmark and UK. The study is part of the EU-funded project: Addictions and Lifestyles in Contemporary Europe: Reframing Addictions Project. Findings – Denmark and the UK are amongst those few European countries that have long traditions and elaborate systems for providing OST to heroin users. The UK has a history of dominance of medical professionals in drugs treatment, although this has been recently challenged by the recovery movement. In Denmark, a social problem approach has historically dominated the field, but a recent trend towards medicalisation can be traced. As in all kinds of policy changes, multiple factors are at play when shifts occur. We examine how both countries’ developments around drugs treatment policy and practice relate to broader societal, economic and political changes, how such divergent developments emerge and how medical professionals as stakeholders enhanced their roles as experts in the field through a variety of tactics, including the production and use of “evidence”, which became a key tool to promote specific stakeholder’s perspectives in these processes. Originality/value – The paper contributes to current policy and practice debates by providing comparative analyses of drug policies and examination of stakeholder influences on policy processes.

In this article, we present a lifecycle study of We Dare You , a substitutional reality installation that combines visual and tactile stimuli. The installation is set up in a center for architecture, and invites visitors to explore its facade while playing with vertigo, in a visual virtual reality environment that replicates the surrounding physical space of the installation. Drawing on an ethnographic approach, including observations and interviews, we researched the exhibit from its opening, through the initial months plagued by technical problems, its subsequent success as a social and playful installation, on to its closure, due to COVID-19, and its subsequent reopening. Our findings explore the challenges caused by both the hybrid nature of the installation and the visitors’ playful use of the installation which made the experience social and performative—but also caused some problems. We also discuss the problems We Dare You faced in light of hygiene demands due to COVID-19. The analysis contrasts the design processes and expectations of stakeholders with the audience’s playful appropriation, which led the stakeholders to see the installation as both a success and a failure. Evaluating the design and redesign through use on behalf of visitors, we argue that an approach that further opens up the post-production experience to a process of continuous redesign based on the user input—what has been termed design-after-design —could facilitate the design of similar experiences in the museum and heritage sector, supporting a participatory agenda in the design process, and helping to resolve the tension between stakeholders’ expectations and visitors’ playful appropriations.

The subject of this research is the examination of neopragmatic realism of Richard Rorty through the prism of the concept of metaphorical truth of Paul Ricoeur. The key goal lies in the attempt to fill the “black box of reality” in the philosophy of R. Rorty with the methodological instruments derived from the concept of metaphorical truth of P. Ricoeur. Having dedicated certain time to describing the core ideas of R. Rorty, the author analyzed the methodology of P. Ricoeur regarding the problem of reality and the cognitive opacity of language characteristic to the system of the American philosopher. The author seeks to determine the common and contradictory aspects in methodology of both philosophers for the purpose of conducting the substitution of the elements of Rorty’s philosophy that is organic for the entire logical construct, concluding on the cognitive opacity of language and elements of Ricoeur’s thoughts that lead to backward reasoning. The crucial element is the idea of “physis” borrowed by Ricoeur from Aristotle for ontological substantiation of the concept of metaphorical reality. Namely this idea that becomes the key to recoding of the philosophical system of R. Rorty to what can be called full realism in the philosophical sense. As a result of application of the idea of “physis” to Rorty's philosophy, the author finds the way to saturate the concept of reality with certain ontological content; however, this content is not susceptible to structural description, and thus does not allow solving the problem of cognitive opacity of language characteristic to Rorty's philosophy. Nevertheless, the application of P. Ricoeur’s concept of metaphorical truth to the philosophical system of R. Rorty in the context of ontological problem of accessing reality is the original tactic of reasoning that has not been previously implemented within the scientific and philosophical circles. Although one of the advanced hypothesis that suggests the possibility of substantiation of the cognitive opacity of language was being refuted, the concept of P. Ricoeur allowed saturating the concept of reality of the American philosopher with the ontological content.

Background: Patients may experience a variety of neurological complications after heart surgery. The most common complication observed in clinical practice is delayed neurocognitive recovery (dNCR). The role of the anesthesiologist is very important, as the risk of dNCR may be reduced, depending on the anesthesia tactic chosen. Although the possibility that neuropsychological complications are less common in patients undergoing combined anesthesia (general + epidural) than in patients undergoing general anesthesia is not yet confirmed, the results are being discussed. The aim of this study was to determine impact of combined anesthesia (general + epidural) on cognitive functions of patients after cardiac surgery. Methods: The prospective, case-controlled study included 80 patients undergoing cardiac surgery from 2015 to 2017 at the Department of Cardiothoracic and Vascular Surgery in the Hospital of Lithuanian University of Health Sciences Kauno Klinikos. After approval from the local bioethics center, informed consent was obtained from all study participants. Inclusion criteria were age 51 to 80 years, elective cardiac surgery, left ventricular ejection fraction > 35%, anamnesis of not using agents affecting the central nervous system, absence of neuropathology, and sufficient renal function. Exclusion criteria were patients suffering from diseases causing cognitive function or using agents affecting the central nervous system, emergency or re-surgery, carotid artery atherosclerosis with artery diameter 50 or more percent reduction, and a patient’s disagreement. MMSE test and 6-CIT test were used for a cognitive function assessment, Trail making test and WAIS Digital Symbol Substitution test were used for psychomotor function assessment. All tests were used a day before surgery and seven days after surgery. According to the planned anesthesia, patients were assigned into two groups: 1 – combined general + epidural anesthesia and 2 – general anesthesia. Standardized protocol of anesthesia was followed for all patients. Preoperative patients and surgery factors, preoperative and postoperative neuropsychological test results were recorded. Results: Eighty patients were enrolled in the study. Both groups did not differ in demographic, perioperative values, and baseline (preoperative) test results. Postoperative (7th day) WAIS (P = .042) and 6-item cognitive impairment (P = .016) test results were statistically different when comparing the GA and CA groups. Comparing preoperative and postoperative test results, there was a significant decline in the WAIS test score in the GA group (P = .013).

Investigations of thematic organization never yielded generally accepted results. The reasons behind this are closely tied to limitations regarding source material. On the one hand, there are certain chronological or thematic units poorly represented in the sources. On the other, there are cases well documented by the sources which can, however, overlook data logically expected to be mentioned. Still, Byzantine sources, including legal texts with their often anachronous clauses, have an understanding of thematic priorities which differs from our own, defined by our contemporary standards. Scholars investigating the institution of stratiotes constantly face such difficulties. An undesired but still rather common result of such problems accounts for the fact that researchers base their opinions on superficial lexis and terminology of Byzantine sources and disregard the connections between the main lines of development of the so-called middle Byzantine period (VII-XI centuries) and the changes in thematic organization. Today we can say that the first themes date from the VII century. From then on, the system was gradually developed. Although the original large themes were divided into smaller units during the VIII century, the principles of organization of subsequent themes - which appeared in the IX and X centuries - remained rather unchanged. Above all, that is quite evident from hierarchic lists (Taktika), dating from the first half of the IX to the first half of the X century (Taktikon Uspenskij, Philoteos' Kletorologion, Taktikon Beneshevich). Only in the late X century we encounter a new situation (Escorial Taktikon). In short, from then on we are dealing with quite a complex administrative organism. As for the social aspect, soldier are a part of society in which the so-called free peasants had their own land within the framework of village community property. This general picture is more or less reflected in various sources of different date : in the articles of the so-called Agrarian Law (end of VII - beginning of VIII century), in Theophanes' list of "crimes" of emperor Nicephoros I (802-811) and in data found in the Treaty on Tax Levying (X century). We are dealing with such social and economic foundations of the state which lasted, continually, at least from the end of the VII/the beginning of the VIII to the beginning of the X century, those which, when endangered by the crisis, the emperors attempted to defend by regular repetition of protective laws. All of the above leads us to the conclusion that it would be impossible to expect that the "birth" of this social order during the VII century brought about quick reform based on proclamations of generally valid laws. Secondly, general and common characteristics of the entire era changed in times of crisis, gradually and at first undetectably, so that the order of things marked by the crisis finally surfaced only in the X century. This development is understandable because many significant phenomena of social life were not necessarily defined by specific laws, regardless of the existence of a developed written legislative corpus. The foundations of the legislative order of the Empire did not come in the form of a written constitution or group of basic laws. Under such conditions, explanations of the social status of soldiers should not necessarily be sought among the early examples of pre-Macedonian legislature, just as, following such unsuccessful searches, one should not draw far-reaching conclusions. Since there was obviously no quick, focused and legislatively rounded-off reform at the moment of the appearance of the military order or social group in question, it would be dangerous to take either the "Ostrogorsky model" or the viewpoints which reject it as an absolute paradigm. After all, Byzantine practice was far more diverse then what we are often ready to admit. It is obvious that, in its initial phase - during the second half of the VII century - the thematic organization developed in times of long lasting demographic crisis and the first serious shortages of money reserves and natural goods. For the most part, the need for military corps could be met in no other way but by settling soldiers. Such soldiers-settlers comprise the kernel of the army and are distributed all across the land, as indicated by the names of the themes of the fist and second generation: Opsikion, Armeniakon, Anatolikon, Karavisianon, Voukelarion, Optimaton, Thrakesianon. Certain, although not numerous examples, uncover the diversity of the sources from which the newly the settled soldiers between the end of the VII and the first half of the IX century were recruited (Slavs in the theme Opsikion, the siege of the city of Tyana, extensive measures of emperor Nicephoros I, the case of the pretender to the throne, Thomas the Slav, and the case of the christianized Kouramites). Generally speaking, the settling of soldiers implies the existence of their more or less pronounced physical ties to the land. However, this does not have to implicate that they all had personal holdings or, to an even lesser extent, that they were all peasants. It only means that these soldiers used the land as the dominant source of income. For, according to De ceremoniis and Ibn-Khordadbih, their annual salary (????) amounted to 1 nomisma, and could not exceed the maximum of 12 (by exception 18) nomismata. Actually, these salaries should be seen as additional assets to the overall income of the soldiers. In that sense, some of the measures (crimes) of emperor Nicephoros I, as interpreted by the chronicle of Theophanes, are especially interesting. The first crime is the settlement of soldiers from all (Asia Minor) themes in the Sclavinias on the Balkans. Those designated for re-settlement had to sell their holdings, often lameting having to lease behind the graves of their parents, perhaps even more distant ancestors, too. Despite this "crime", there were not enough soldiers to satisfy the growing needs for military corps on both sides of the Empire. Thus the emperor recruited and equipped the poor from the sum of 18.5 nomismes which their neighbors had to pay to the state treasury. The measures of emperor Nicephoros show that in those days there were at least two type of stratiotes - soldiers who supported themselves from the income provided by their land holdings and those newly recruited or, perhaps, impoverished soldiers whose equipment was provided for by peasants, through the payments they made to the state treasury. The other solution was, apparently, if not temporary then rather rare, so that the general line of development lay closer to the first solution, both before and after the reign of Nicephoros. Already at the time of publishing of the Ecloga, that is during the reign of Leo III, ???????????? ????? was a common reality, just as it was in the much later Tactica of Leo VI. The described situation from the days of Nicephoros is very reminiscent of the way the military estate is defined in De cerimoniis, which speaks of soldiers with "houses", but also of poor soldiers who are in the service as a result of community support. This refers to soldiers who can be denoted, as they are in the famous novel by Constantine Porphyrogenitos, by epithets ??((((? and ?((((?. "House" is taken to mean the patrimony of an individual family, which provides material support for one soldier from its own ranks, as it clearly results from the Ecloga and the Taktika. That is why the expression ????????? - "one who participates in" (equipping a soldier) - appears already in the so-called Leges militares. Basically, we are dealing with the same phenomenon which in the later legislative texts of the Macedonian dynasty (X century) was given clearer articulation. All this implies that military service - ???????? - could be performed, in part or on the whole, through money payments. According to a considerable number of researchers, the fiscalization of the "stratia" should exclusively be taken as a feature of late Macedonian legislation. However, it is beyond doubt that this phenomenon also had a prior history. In the Vita of St. Euthymios the Younger we find mention of the fact that his mother, as a widow, inscribed the name of her then seven year old son on military lists in the early 830's. Apparently, such formal inscriptions of "soldiers" did happen as a means of evading money payments in substitution for military service. What is even more interesting, the fiscal duties imposed on widows or families came as a renewed ancient custom. One text by Theodore of Stoudion (March 801) implies that the empress Irene revoked this levy which existed in the days of earlier "Orthodox emperors". In the eyes of Theodore, those could only have been emperors from pre-Iconoclastic times. The striving of soldiers to gain property of farming land and the interaction between them and the tax paying population of farmers were always present, just as there were always clear demarcations between these two social groups. The soldiers with their property, on one side, and the peasants (and other civilians) with their property on the other, were precisely distinguished in the X century by the terms ???????????? ????? and (???????? ?????. These technical terms validated the statements found in the Tactica of Leo VI and the second Novel of Romanos I (934) regarding the two pillars of the state: the soldiers and the peasants. This, however, did not imply the introduction of new institutions but rather of new terminology with specific meaning introduced in times of precise agrarian codification. It is practically self evident that in the mentioned the living conditions of thematic soldiers between the VII/VIII and the X century, there were several options in articulating the social profile of a soldier. It is also evident what the relatively stable types of soldiers were based on. Firstly, already in the VIII century there is confirmation of the existence of soldiers with property, that is land holdings, the source of the greatest part of their income, whether as proprietors or as recruited members of certain families. In that respect, it is important to note that in one Taktikon from the 960's soldiers with personal property were marked as an ancient phenomenon, older even than the Macedonian legislation of the X century. The same applies to the distinction between ??????????, proprietor but not necessarily an active soldier, and ?????????????, one actually in military service. Moreover, the fact is that there did exist social differences between the numerous soldiers with land holdings. On the other hand, there were those among the soldiers who had no property what so ever or practically none to count with. They were recruited in different ways. Some soldiers from this category were recruited through collective contributions of the communities (beginning of IX century), while others received support from certain landowners (end of IX century). The first option appears in later years as well, as demonstrated by a case registered on the Peloponnesos in the first half of the X century, when the population was levied with collecting money in order to secure funding for the soldiers. It is certain that among the soldiers who traded their participation in such campaigns for financial contributions there were also those (former soldiers?) who had grown impoverished in the mean time and could not personally perform military service. The famous soldier Mousoulios from the Vita of Philaretos is a good example from the close of the VIII century. In order to monitor the process of impoverishment of soldiers, we would have to have more of this sort of information from various vitae. The X century legislation came only as a reaction to the crisis which at the beginning of the X century struck smaller and medium size landowners, both soldiers and civilians. This struggle to save the basic body of thematic soldiers had its climax in the days of Constantine VII Porphyrogennetos. In asserting the value of their property, the emperor could thus calmly claim that such a custom, although not formally written down, had already existed. Having become insufficient, this unwritten custom was codified and raised to the level of a written law. Parallel to the weakening of the military social stratum, there is a growing fiscalization of the stratia, which no longer necessarily had to represent military service but was rather seen as its financial support. The road was thus open for the appearance of a new mercenary army. On the other hand, parallel to the changes in military tactics, the wealthier soldiers finally gained a dominant role. In order to secure the service of such soldiers, in the days of Nicephoros II the minimal value of military land holdings was raised to 12 pounds of gold. This marked the beginning of the rise of lower military aristocracy. During the following, XI century, when the classical thematic organization no longer existed, thematic soldiers had already lost their importance and, save perhaps for minor exceptions, represented a thing of the past.

Abstract Background In this work, we present a novel sensory substitution system that enables to learn three dimensional digital information via touch when vision is unavailable. The system is based on a mouse-shaped device, designed to jointly perceive, with one finger only, local tactile height and inclination cues of arbitrary scalar fields. The device hosts a tactile actuator with three degrees of freedom: elevation, roll and pitch. The actuator approximates the tactile interaction with a plane tangential to the contact point between the finger and the field. Spatial information can therefore be mentally constructed by integrating local and global tactile cues: the actuator provides local cues, whereas proprioception associated with the mouse motion provides the global cues. Methods The efficacy of the system is measured by a virtual/real object-matching task. Twenty-four gender and age-matched participants (one blind and one blindfolded sighted group) matched a tactile dictionary of virtual objects with their 3D-printed solid version. The exploration of the virtual objects happened in three conditions, i.e., with isolated or combined height and inclination cues. We investigated the performance and the mental cost of approximating virtual objects in these tactile conditions. Results In both groups, elevation and inclination cues were sufficient to recognize the tactile dictionary, but their combination worked at best. The presence of elevation decreased a subjective estimate of mental effort. Interestingly, only visually impaired participants were aware of their performance and were able to predict it. Conclusions The proposed technology could facilitate the learning of science, engineering and mathematics in absence of vision, being also an industrial low-cost solution to make graphical user interfaces accessible for people with vision loss.

Researchers in post-war industrial laboratories such as Bell Labs and the Smith-Kettlewell Institute pioneered solutions to compensate for sensory loss through so-called sensory substitution systems, premised on an assumption of cortical and sensory plasticity. The article tracks early discussions of plasticity in psychology literature from William James, acknowledged by Wiener, but explicitly developed by Bach-y-Rita and his collaborators. After discussing the conceptual foundations of the principles of sensory substitution, two examples are discussed. First, ‘Project Felix’ was an experiment in vibrotactile communication by means of ‘hearing gloves’ for the deaf at Norbert Wiener’s laboratory at Massachusetts Institute of Technology, demonstrated to Helen Keller in 1950. Second, the tactile-visual sensory substitution system for the blind pioneered by Paul Bach-y-Rita from 1968 onwards. Cumulatively, this article underlines the crucial yet occluded history of research on sensory impairments in the discovery of underlying neurophysiological processes of plasticity and the emergent discourse of neuroplastic subjectivity.

Our research focuses on perceptual and cognitive mechanisms involved in learning procedures in order to develop and validate innovating technologies in the field of health for blind people through the implementation of an embarked version of a Tactile Vision Sensory Substitution device (TVSS) with wireless connections between the three TVSS components (micro camera, coupling system and matrix of tactile stimulators), aesthetically acceptable and allowing an ecological use. Such a device could allow prevention of developmental disorders in blind infants, autonomy for blind people in everyday life (thanks to the implementation of a Human Machine Interface allowing connections between the embarked TVSS device and a Personal Computer with a software development presenting a 3D numerization of the subject's urban environment). A new perspective is proposed in favor of innovating taking care programs for autistic people. The main goal of this project is to allow disabled people to benefit from the scientifically demonstrated efficacy of TVSS devices.

AbstractLimb amputation not only reduces the motor abilities of an individual, but also destroys afferent channels that convey essential sensory information to the brain. Significant efforts have been made in the area of upper limb prosthetics to restore sensory feedback, through the stimulation of residual sensory elements. Most of the past research focused on the replacement of tactile functions. On the other hand, the difficulties in eliciting proprioceptive sensations using either haptic or (neural) electrical stimulation, has limited researchers to rely on sensory substitution. Here we propose the myokinetic stimulation interface, that aims at restoring natural proprioceptive sensations by exploiting the so-called tendon illusion, elicited through the vibration of magnets implanted inside residual muscles. We present a prototype which exploits 12 electromagnetic coils to vibrate up to four magnets implanted in a forearm mockup. The results demonstrated that it is possible to generate highly directional and frequency-selective vibrations. The system proved capable of activating a single magnet, out of many. Hence, this interface constitutes a promising approach to restore naturally perceived proprioception after an amputation. Indeed, by implanting several magnets in independent muscles, it would be possible to restore proprioceptive sensations perceived as coming from single digits.

In this work, the FCC algorithm has been applied to the power problem. Real power loss reduction, voltage deviation minimization, and voltage stability enhancement are the key objectives of the proposed work. The proposed FCC algorithm has been modeled based on the competition, communication among teams, and training procedure within the team. The solution has been created based on the team, players, coach, and substitution tactic. A preliminary solution of the problem is produced, and the initialization of the teams depends on the team’s formation with substitute tactics. Mainly fitness function for each solution is computed, and it plays an imperative role in the process of the algorithm. With the performance in the season, promotion and demotion of the teams will be there. Most excellently performed teams will be promoted to a senior division championship, and the most poorly performed team will be demoted to the top lower division league. Ideas and tactics sharing procedure, repositioning procedure, Substitution procedure, seasonal transmit procedure, Promotion and demotion procedure of a team which plays in the confederation cup has been imitated to solve the problem. Similar to an artificial neural network, a learning phase is also applied in the projected algorithm to improve the quality of the solution. Modernization procedure employed sequentially to identify the best solution. With and without voltage stability (L-index) FCC algorithm is evaluated in IEEE 30, bus system. Then the Proposed FCC algorithm has been evaluated in standard IEEE 14, 57,118,300 bus test systems without L-index. Power loss minimization and voltage stability index improvement have been achieved with voltage deviation minimization.

XtendFlexTM cotton with resistance to glyphosate, glufosinate and dicamba may become available in Australia. Resistance to these herbicides enables two additional modes of action to be applied in crop. The double knock strategy, typically glyphosate followed by paraquat, has been a successful tactic for control of glyphosate-resistant in fallow situations in Australia. Glufosinate is a contact herbicide, and may be useful as the second herbicide in a double knock for use in XtendFlexTM cotton crops. We tested the effectiveness of glufosinate applied at intervals of 1, 3, 7, and 10 d after initial applications of glyphosate, dicamba, clethodim and glyphosate mixtures with dicamba or clethodim on glyphosate-resistant and susceptible populations of Conyza bonariensis, Sonchus oleraceus, Chloris virgata, Chloris truncata and Echinochloa colona. Effective treatments for Conyza bonariensis with 100% control were dicamba and glyphosate+dicamba followed by glufosinate independent of the interval between applications. Sonchus oleraceus was effectively controlled in Experiment 1 by all treatments. However, in Experiment 2 effective treatments were dicamba and glyphosate+dicamba followed by glufosinate (99.3 – 100% control). Timing of the follow-up glufosinate did not affect the control achieved. Consistent control of Chloris virgata was achieved with glyphosate, clethodim or glyphosate+clethodim followed by glufosinate at 7 and 10 d intervals (99.7 – 100% control). Control of Chloris truncata was inconsistent. The best treatment for C. truncata was glyphosate+clethodim followed by glufosinate 10 d later (99.8 – 100% control). Echinochloa colona was effectively controlled with all treatments except for glyphosate on the glyphosate-resistant population. Additional in-crop use of glufosinate and dicamba should be beneficial for weed management in XtendFlexTM cotton crops, when utilising the double knock tactic with glufosinate. For effective herbicide resistance management, it is important that these herbicides be used in addition to, rather than substitution for, existing weed management tactics.

The purpose of this study is to identify and systematize speech-behavioral situations (SBS) and speech-cultural scripts (scenarios) (SCS) of intentional paronymy, which traditionally include paronomasia and paronymic attraction, in the Russian linguocultural space. The object of study is paronyms used intentionally in various speech-behavioral situations of the Russian linguocultural space. The subject of the research is the originality of the system of speech-behavioral situations and the speech-cultural scripts caused by them provided that paronymy is intentionally used. The facts were investigated based on the Russian paronyms dictionaries. As a result of the work carried out, it was possible to show that in situations of intentional paronymy, two types of speech-behavioral tactics (SBT) can be used: the tactics of intentional paronymic replacement / substitution / error and the tactics of artistic design of speech. The author's conclusions are as follows: firstly, speech-behavioral situations of the intentional use of paronymy arising in the tactics of intentional paronymic substitution / error are a slip of the tongue, a misspelling, a mishearing, a misreading with possible speech-cultural scenarios of jokes, satire, irony, humorous or comic overtones, as well as overtones of condemnation, resentment, humiliation, ridicule, adventure, deception and others. In this case, only the wrong component of the paronymic opposition organized according to the principle of the „right” // „wrong” dichotomy is used. An exception is the mishearing situation, where both components of the paronymic pair are represented. Secondly, speech-behavioral situations arising in the tactics of artistic design of speech using paronymy are patronymic convergence and paronymic rhyming. These two speech-behavioral situations are accompanied by a speech-cultural script of enhancing the artistry and / or expressiveness of the text and the SCS of described assessment. In speech-behavioral situations of patronymic convergence and paronymic rhyming, at least two components of the paronymic series are represented, since intentional paronymy appears in these situations as a binary stylistic device.

The word “anarchy” comes from the ancient Greek word “anarchos” and means “without a ruler.” While rulers, quite expectedly, claim that the end of rule will inevitably lead to a descent into chaos and turmoil, anarchists maintain that rule is unnecessary for the preservation of order. Rather than a descent into Hobbes’s war of all against all, a society without government suggests to anarchists the very possibility for creative and peaceful human relations. Pierre-Joseph Proudhon neatly summed up the anarchist position in his famous slogan: “Anarchy is Order.” Historically, anarchists have sought to create a society without government or State, free from coercive, hierarchical and authoritarian relations, in which people associate voluntarily. Anarchists emphasize freedom from imposed authorities. They envision a society based upon autonomy, self-organization and voluntary federation which they oppose to “the State as a particular body intended to maintain a compulsory scheme of legal order” (Marshall 12). Contemporary anarchists focus much of their efforts on transforming everyday life through the development of alternative social arrangements and organizations. Thus, they are not content to wait either for elite-initiated reforms or for future “post-revolutionary” utopias. If social and individual freedoms are to be expanded the time to start is today. In order to bring their ideas to life, anarchists create working examples. To borrow the old Wobbly phrase, they are “forming the structure of the new world in the shell of the old.” These experiments in living, popularly referred to as “DIY” (Do-It-Yourself), are the means by which contemporary anarchists withdraw their consent and begin “contracting” other relationships. DIY releases counter-forces, based upon notions of autonomy and self-organization as motivating principles, against the normative political and cultural discourses of neo-liberalism. Anarchists create autonomous spaces which are not about access but about refusal of the terms of entry (e.g. nationalism, etc). The “Do-it-Yourself” ethos has a long and rich association with anarchism. One sees it as far back as Proudhon’s notions of People’s Banks and local currencies which have returned in the form of LETS (Local Exchange and Trade Systems). In North America, 19th Century anarchist communes, such as those of Benjamin Tucker, find echoes in the Autonomous Zones and squat communities of the present day. In the recent past, Situationists, Kabouters, and the British punk movements have encouraged DIY activities as means to overcome alienating consumption practices and the authority and control of work. Punks turned to DIY to record and distribute music outside of the record industry. At the forefront of contemporary DIY are the “Autonomous Zones” or more simply “A-Zones.” “Autonomous Zones” are community centres based upon anarchist principles, often providing meals, clothing and shelter for those in need. These sites, sometimes but not always squats, provide gathering places for exploring and learning about anti-authoritarian histories and traditions. Self-education is an important aspect of anarchist politics. A-Zones are important as sites of re-skilling. DIY and participatory democracy are important precisely because they encourage the processes of learning and independence necessary for self-determined communities. A-Zones are often sites for quite diverse and complex forms of activity. The “Trumbellplex” in Detroit is an interesting example. Housed, ironically, in the abandoned home of an early-Century industrialist, the Trumbell Theatre serves as a co-operative living space, temporary shelter, food kitchen and lending library. The carriage house has been converted into a theatre site for touring anarchist and punk bands and performance troops like the “Bindlestiff Circus.” Because of their concern with transcending cultural barriers, residents of A-Zones try to build linkages with residents of the neighbourhoods in which they were staying. The intention is to create autonomous free zones that may be extended as resources and conditions permit. These various practices are all part of complex networks that are trans-national, trans-boundary and trans-movement. They encourage us to think about writing against the movement as movement. Movement processes involve complex networks outside of and alongside of the State (trans-national and trans-boundary). These are the building blocks of what Howard Ehrlich refers to as the anarchist transfer culture, an approximation of the new society within the context of the old. Within it anarchists try to meet the basic demands of building sustainable communities. A transfer culture is that agglomeration of ideas and practices that guide people in making the trip from the society here to the society there in the future….As part of the accepted wisdom of that transfer culture we understand that we may never achieve anything that goes beyond the culture itself. It may be, in fact, that it is the very nature of anarchy that we shall always be building the new society within whatever society we find ourselves (Ehrlich 329). In this sense, anarchist autonomous zones are liminal sites, spaces of transformation and passage. As such they are important sites of re-skilling, in which anarchists prepare themselves for the new forms of relationship necessary to break authoritarian and hierarchical structures. Participants also learn the diverse tasks and varied interpersonal skills necessary for collective work and living. This skill sharing serves to discourage the emergence of knowledge elites and to allow for the sharing of all tasks, even the least desirable, necessary for social maintenance. For Paul Goodman, an American anarchist whose writings influenced the 1960s New Left and counterculture, anarchist futures-present serve as necessary acts of “drawing the line” against the authoritarian and oppressive forces in society. Anarchism, in Goodman’s view, was never oriented only towards some glorious future; it involved also the preservation of past freedoms and previous libertarian traditions of social interaction. “A free society cannot be the substitution of a ‘new order’ for the old order; it is the extension of spheres of free action until they make up most of the social life” (Goodman quoted in Marshall 598). Utopian thinking will always be important, Goodman argued, in order to open the imagination to new social possibilities, but the contemporary anarchist would also need to be a conservator of society’s benevolent tendencies. As many recent anarchist writings suggest, the potential for resistance might be found anywhere in everday life. If power is exercised everywhere, it might give rise to resistance everywhere. Present-day anarchists like to suggest that a glance across the landscape of contemporary society reveals many groupings that are anarchist in practice if not in ideology. Examples include the leaderless small groups developed by radical feminists, coops, clinics, learning networks, media collectives, direct action organizations; the spontaneous groupings that occur in response to disasters, strikes, revolutions and emergencies; community-controlled day-care centers; neighborhood groups; tenant and workplace organizing; and so on (Ehrlich, Ehrlich, DeLeon and Morris 18). While these are obviously not strictly anarchist groups, they often operate to provide examples of mutual aid and non-hierarchical and non-authoritarian modes of living that carry the memory of anarchy within them. It is within these everyday examples that anarchists glimpse the possibilities for a libertarian social order. If, as Colin Ward suggests, anarchy is a seed beneath the snow of authoritarian society, daily expressions of mutual aid are the first blooms from which a new order will grow. In viewing the projects that emerge from contemporary anarchist movements, I would suggest that, in the words of Castells, Yazawa and Kiselyova, such projects offer “alternative visions and projects of social transformation that reject the patterns of domination, exploitation and exclusion embedded in the current forms of globalization” (22). Following Leslie Sklair I suggest that autonomist/anarchy movements exemplify a “disruption” model of social movements and resistances to capitalism (as opposed to an “organizational model” or an “integrationist model”). Through their uncompromising rhetoric and immodest strategies they resist attempts to divert their disruptive force into normal politics. Activists attempt to reject the entire context within which they can be either marginalized or assimilated; they occupy their own ground. This “autonomy” must be constantly constructed, reconstructed and defended in the face of powerful foes as events of the last four years have shown. Autonomy movements in abandoned or impoverished inner-city areas are movements involving individuals, social groups or territories excluded or made precarious by the “new world order”. This distinguishes them somewhat from institutional global social movements that seek increased participation by members who are not yet rendered irrelevant (and who thus have something with which to bargain). In any event, how does one ask a global (or national) body to grant the “subversion of the dominant paradigm” or the “liberation of desire?” References Ehrlich, Howard J. “Introduction to Reinventing Anarchist Tactics.” Reinventing Anarchy, Again. Ed. H. J. Ehrlich. Edinburgh: AK Press, 1996: 329-330. ———. “How to Get from Here to There: Building Revolutionary Transfer Culture.” Reinventing Anarchy, Again. Ed. Howard J. Ehrlich. Edinburgh: AK Press, 1996: 331-349. Ehrlich, Howard J., Carol Ehrlich, David DeLeon, and Glenda Morris. “Questions and Answers about Anarchism.” Reinventing Anarchy, Again. Ed. Howard J. Ehrlich. Edinburgh: AK Press, 1996: 4-18. Horowitz, Irving L (Ed.). The Anarchists. New York: Dell, 1964. Joll, James. The Anarchists. New York: Grosset and Dunlap, 1964. Laclau, Ernesto, and Chantal Mouffe. Hegemony and Socialist Strategy. London: Verso, 1985. Lange, Jonathan, I. “Refusal to Compromise: The Case of Earth First!” Western Journal of Speech Communication 54 (1990): 473-94. Marshall, Peter. Demanding the Impossible: A History of Anarchism. London: Fontana Press, 1993. Proudhon, Pierre-Joseph. Selected Writings of Pierre-Joseph Proudhon. Garden City: Anchor Books, 1969. Sklair, Leslie. 1995. “Social Movements and Global Capitalism.” Sociology 29.3 (1995): 495-512. Ward, Colin. Anarchy in Action. New York: Harper Torchbooks, 1973. Woodcock, George. Anarchism: A History of Libertarian Ideas and Movements. New York: World Publishing, 1962. Citation reference for this article MLA Style Shantz, J. "Anarchy Is Order: Creating the New World in the Shell of the Old." M/C Journal 7.6 (2005). echo date('d M. Y'); ?> <http://journal.media-culture.org.au/0501/09-shantz.php>. APA Style Shantz, J. (Jan. 2005) "Anarchy Is Order: Creating the New World in the Shell of the Old," M/C Journal, 7(6). Retrieved echo date('d M. Y'); ?> from <http://journal.media-culture.org.au/0501/09-shantz.php>.

i) When I arrived in Aurukun, west Cape York, it was the heat that struck me first, knocking the city pace from my body, replacing it with a languor familiar to my childhood, although heavier, more northern. Fieldwork brings with it its own delights and anxieties. It is where I feel most competent and incompetent, where I am most indebted and thankful for the generosity and kindness of strangers. I love the way “no-where” places quickly become somewhere and something to me. Then there are the bodily visitations: a much younger self haunts my body. At times my adult self abandons me, leaving me nothing but an awkward adolescent: clumsy, sweaty, too much body, too white, too urban, too disconnected or unable to interpret the social rules. My body insists that this is not my home, but home for Wik and Wik Way people. Flailing about unmoored from the socio-cultural system that I take for granted, and take comfort from – and I draw sustenance. Anxiety circles, closes in on me, who grows distant and unsure, fragmented. Misusing Deborah Bird Rose, I’m tempted to say I’m separated from my nourishing terrain. Indeed it can feel like the nation (not the country) slipped out from under my feet.I want to consider the above as an affective event, which seemingly reveals a lack of fortitude, the very opposite of resilience. A settler Australian – myself – comfort and sense of belonging is disturbed in the face of Aboriginal – in this case Wik – jurisdiction and primacy. But could it be generative of a kind of resilience, an ethical, postcolonial resilience, which is necessary for facing up to and intervening in the continence of colonial power relations in Australia? Affects are very telling: deeply embodied cultural knowledge, which is largely invisible, is made present. The political and ethical potential of anxiety is that it registers a confrontation: a test. If resilience is the capacity to be flexible and to successfully overcome challenges, then can settler anxiety be rethought (and indeed be relearned) as signalling an opportunity for ethical intercultural engagements (Latukefu et. al., “Enabling”)? But it necessitates resilience thinking to account for socio-cultural power relations.Over the years, I have experienced many anxieties when undertaking research in Indigenous Australia (many of them warranted no doubt – What am I doing? Why? Why should people be interested? What’s in it for whom?) and have sensed, heard and read about many others. Encounters between Aboriginal and settler Australians are often highly emotional: indeed can make “good whitefellas” very anxious. My opening example could be explained away as an all too familiar experience of a new research environment in an unfamiliar place and, more so, cultural dissonance. But I am not convinced by such an argument. I think that unsettlement is a more general white response to encountering the materiality of Indigenous people and life: the density of people’s lives rather than representations. My interest is in what I am calling (in a crude sociological category) the “good white women”, in particular anxious progressive settlers, who wish to ethically engage with Indigenous Australians. If, as I’m arguing, that encounters with Indigenous people, not representations, cause the “good setter” to experience such deep uncertainty that transformation is resisted, if not even refused, then how are “we” to surmount such a challenge?I want to explore anxiety as both revealing the embodiment of colonialism but also its potential to disturb and rupture, which inturn might provide an opportunity for the creation of anti-colonial relationality. Decolonisation is a cultural process, which requires a lot more than good intentions. Collective and personal tenacity is needed. To do so requires activating resilience: renewed by postcolonial ethics. Scholarship emphasises that resilience is more than an individual quality but is environmental and social, and importantly can be enhanced or taught through experiential interventions (Lafukefu, “Fire”; Howard & Johnson). Why do white settlers become anxious when confronted with Indigenous politics and the demand to be recognised as peers, not a vulnerable people? Postcolonial and whiteness scholars’ have accused settlers of de-materialising Indigeneity and blocking the political by staying in an emotional register and thus resisting the political encounter (Gelder & Jacobs; Gooder & Jacobs; Moreton-Robinson; Povinelli). Largely I agree. Too many times I’ve heard whitefellas complain, “We’re here for culture not politics”. However, in the above analysis emotions are not the material of proper critique, yet anxiety is named as an articulation of the desire for the restoration of colonial order. Arguably anxiety is a jolt out of comfort and complacency. Anxiety is doing a lot of cultural work. Settler anxiety is thus not a retreat from the political but an everyday modality in which cultural politics is enacted. Thus a potential experiential, experimental site in which progressive settlers can harness their political, ethical will to face up to substantial collective challenges.Strangely Indigeneity is everywhere. And nowhere. There is the relentless bad news reported by the media, interspersed with occasional good news; Aboriginal television dramas; the burgeoning film industry; celebrated artists; musicians; sports people; and no shortage of corporate and government walls adorned with Indigenous art; and the now common place Welcome to Country. However, as Ken Gelder writes:in the contemporary postcolonial moment, Aboriginal people have more presence in the nation even as so many settler Australians (unlike their colonial counterparts) have less contact with them. Postcolonialism in Australia means precisely this, amongst other things: more presence, but – for non-Aboriginal Australians – less Aboriginal contact. (172).What happens when increased “presence” becomes contact? His concern, as is mine, is that political encounters have been replaced by the personal and social: “with contact functioning not as something traumatic or estranging any more, but as the thing that enables a settler Australian’s completion to happen” (Gelder 172). My interest is in returning to the estranging and traumatic. Mainstream perceptions of “Aborigines” and Aboriginality, Chris Healy argues, have little to nothing to do with experiences of historical or contemporary Indigenous peoples, but rather refer to a particular cultural assemblage and intercultural space that is the product of stories inherited from colonists and colonialism (4-5). The dominance of the assemblage “Aborigine” enables the forgetting of contemporary Indigenous people: everyday encounters, with people or self-representations, and Australia’s troubling history (Healy). There is an engagement with the fantasy or phantom Indigeneity but an inability to deal with the material embodied world – of Indigenous people. Sociality is denied or repressed. The challenge and thus potential change are resisted.ii) My initial pursuit of anxiety probably came from my own disturbances, and then observing, feeling it circulate in what sometimes seemed the most unlikely places. Imagine: forty or so “progressive” white Australians have travelled to a remote part of Australia for a cultural tourism experience on country, camping, learning and sharing experiences with Traditional Owners. A few days in, we gather to hear an Elder discuss the impact and pain of, what was formally known as, the Northern Territory Intervention. He speaks openly and passionately, and yes, politically. We are given the opportunity to hear from people who are directly affected by the policy, rather than relying on distant, southern, second hand, recycled ideologies and opinions. Yet almost immediately I felt a retreat, shrinking, rejection – whitefellas abandoning their alliances. Anxiety circulates, infects bodies: its visceral. None of the tourists spoke about what happened, how they felt, in fear of naming, what? Anxiety after all does not have an object, it is not produced from an immediate threat but rather it is much more existential or a struggle against meaninglessness (Harari). In anxiety one has nowhere else to turn but into one’s self. It feels bad. The “good white women” evaporates – an impossible position to hold. But is it all bad? Here is a challenge: adverse conditions. Thus it is an opportunity to practice resilience.To know how and why anxiety circulates in intercultural encounters enables a deeper understanding of the continuance of colonial order: the deep pedagogy of racial politics that shapes perception, sense making and orders values and senses of belonging. A critical entanglement with postcolonial anxiety exposes the embodiment of colonialism and, surprisingly, models for anti-colonial social relations. White pain, raw emotions and an inability to remain self possessed in the face of Indigenous conatus is telling; it is a productive space for understanding why settler Australia fails, despite the good intentions, to live well in a colonised country. Held within postcolonial anxiety are other possibilities. This is not to be an apologist for white people behaving badly or remaining relaxed and comfortable, or disappearing into white guilt, as if this is an answer or offers absolution. But rather if there is so much anxiety than what has it to tells us and, importantly, I think it gives us something to work with, to be otherwise. Does anxiety hold the potential to be redirected to more productive, ethical exchanges and modes of belonging? If so, there is a need to rethink anxiety, understand its heritage and to work with the disturbances it registers.iii) No doubt putting anxiety alongside resilience could seem a little strange. However, as I will discuss, I understand anxiety as productive, both in the sense that it reveals a continuing colonial order and is an articulation of the potential for transformation. In this sense, much like resilience thinking in ecological and social sciences, I am suggesting what is needed is to embrace “change and disturbance rather than denying or constraining it” (Walker & Salt 147). I will argue that anxiety is the registering of hazard. Albeit in extremely different circumstances than when resilience thinking is commonly evoked, which is most often responses to natural disasters (Wilson 1219). Settler Australians are not under threat or a vulnerable population. I am in no way suggesting they or “we” are, but rather I want to investigate the existential “threat” in intercultural encounters, which registers as postcolonial anxiety, a form of disturbance that in turn might provide an opportunity for positive change and an undoing of colonial relations (Wilson 1221).Understanding community resilience, according to Wilson, as the conceptual space at the intersection between economic, social and environmental capital is helpful for trying to re-conceptualise the knotty, power laden and intransigence of settler and Indigenous relations (1220). Wilson emphases that social resilience is about the necessity of people, or in his terms, human systems, learning to manage by change and importantly, pre-emptive change. In particular he is critical of resilience theorists “lack of attention to relations of power, politics and culture” (1221). If resilience, according to Ungar, is the protective processes that individuals, families and communities use to cope, adapt and take advantage of their “assets” when facing significant stress, and these protective processes are often unique to particular contexts, I am wondering if settler anxiety might be a strange protective factor that prevents, or indeed represses, settlers from engaging more positively with intercultural disturbance (“Researching” 387). Surely in unsettling intercultural encounters a better use of settler assets, such as racial power and privilege, is to mobilise assets to embrace change and experiment with the possibility of transforming or transferring racial power with the intent of creating a genuine postcolonial country. After all a population’s resilience is reliant on interdependence (Ungar, “Community” 1742).iv) What can anxiety tell about the motivations, desires for white belonging and intercultural relations? We need to pay attention to affects, or rather affects motivate attention and amplify experiences, and thus are very telling (Evers 54). The life of our bodies largely remains invisible; the study of affect and emotions enables the tracing of elements of the socio-cultural that are present and absent (Anderson & Harrison 16). And it is presence and absence that is my interest. Lacan, following Freud, famously wrote that anxiety does not have an object. He is arguing that anxiety is not caused by the loss of an object “but is fundamentally the affect that signals when the Other is too close, and the order of symbolization (substitution and displacement) is at risk of disappearing” (Harari xxxii). The “good white woman” feels the affects of encountering alterity, but how does she respond? To know to activate (or develop the capacity for) resilience requires understanding anxiety as a site for transformation, not just pain.Long before the current intensification of affect studies, theorists such as Freud, Kierkegaard and Rollo May argued that anxiety should be depathologied. Anxiety indicates vitality: a struggle against non-being. Not simply a threat of death but more so, meaninglessness (May 15). Anxiety, they argue, is a modern phenomenon, and thus emerged as a central concern of contemporary philosophers. Anxiety, as Kierkegaard held, “is always to be understood as orientated toward freedom” (qt May 37). Or as he famously wrote, “the dizziness of freedom” (Kierkegaard 138). The possibilities of life, and more so the human capacity for self-awareness of life’s potential – to imagine, dream, visualise a different, however unknown, future, self – and the potential, although not ensured, to creatively actualise these possibilities brings with it anxiety. “Anxiety is the affect, the structure of feeling that is inherent in the act of transition”, as Homi Bhabha writes, but it is also the affect of freedom (qt Farmer 358-9). Growth, expansion, transformation co-exist with anxiety (May). In a Spinozian sense, anxiety is thinking with our bodies.In a slightly different vein, Bhabha argues for what he terms “creative anxiety”. Albeit inadvertent, anxiety embraces a state of “unsettled negotiation” by refusing imperious demands of totalizing discourses, and in this sense is an important political tactic of “hybridization” (126). Drawing upon Deleuze, he calls this process becoming minor: relinquishing of power and privilege. Encounters with difference, the proximity to difference, whereby it is not possible to draw a clear and unambiguous line between one’s self and one’s identification with another produces anxiety. Thus becoming minor emerges through the affective processes of anxiety (Bhabha 126). Where there is anxiety there is hope. Bhabha refers to this as anxious freedom. The subject is painfully aware of her indeterminacy. Yet this is where possibility lies, or as Bhabha writes, there is no access to minority politics without a painful “bending” toward freedom (130). In the antagonism is the potential to be otherwise, or create an anti-colonial future. Out of the disturbance might emerge resilient postcolonial subjects.v) The intercultural does not just amplify divisions and difference. In an intercultural setting bodies are mingling and reacting to affective dimensions. It is the radical openness of the body that generates potential for change but also unsettles, producing the anxious white body. Anxiety gets into our bodies and shakes us up, alters self-understanding and experience. Arguably, these are experimental spaces that hold the potential for cultural interventions. There is no us and them; me here and you over there. Affect, the intensity of anxiety, as Moira Gatens writes, leads us to “question commonsense notions of privacy or ‘integrity’ of bodies through exposing the breaches on the borders between self and other evidenced by the contagious ‘collective’ affects” (115). Is it the breaches of borders that instigate anxiety? It can feel like something else, foreign, has taken possession of one’s body. What could be very unsettling about affect, Elspeth Probyn states, is it “radically disturbs different relations of proximity: to our selves, bodies, and pasts” (85). Our demarcations and boundaries are intruded upon.My preoccupation is in testing the double role that anxiety is playing: both reproducing distinctions and also perforating boundaries. I am arguing that ethical and political action takes place through developing a deep understanding of both the reproduction and breach, and in so doing, I “seek to generate new ways of thinking about how we relate to history and how we wish to live in the present” (Probyn 89). In this sense, following scholars of affect and emotion, I want to rework the meaning of anxiety and how it is experienced: to shake up the body or rather to generate an ethical project from the already shaken body. Different affects, as Probyn writes, “make us feel, write, think and act in different ways” (74). What is shaken up is the sense of one’s own body – integrity and boundedness – and with it how one relates to and inhabits the world. What is my body and how does it relate to other bodies? The inside and outside distinction evaporates. Resilience is a necessary attribute, or skill, to resist the lure of readily available cultural resistances.I am writing a book about progressive white women’s engagement with Indigenous people and politics, and the anxiety that ensues. The women I write about care. I do not doubt that: I am not questioning her as an individual. But I am intrigued by what prevents settler Australians from truly grappling with Indigenous conatus? After all, “good white women” want social justice. I am positing that settler anxiety issues from encountering the materiality of Indigenous life: or perhaps more accurately when the imaginary confronts the material. Thus anxiety signals the potential to experience ethical resilience in the messy materiality of the intercultural.By examining anxiety that circulates in intercultural spaces, where settlers are pulled into the liveliness of social encounters, I am animated by the possibility of disruptions to the prevailing order of things. My concern with scholarship that examines postcolonial anxiety is that much of it does so removed from the complexity of immersive engagement. To do so, affords a unifying logic and critique, which limits and contains intercultural encounters, yet settlers are moved, impressed upon, and made to feel. If one shifts perspective to immanent interactions, messy materialities, as Danielle Wyatt writes, one can see where ways of relating and belonging are actively and invariably (re)constructed (188). My interest is in the noisy and unruly processes, which potentially disrupt power relations. My wager is that anxiety reveals the embodiment of colonialism but it is also an opening, a loosening to a greater capacity to affect and be affected. Social resilience is about embracing change, developing positive interdependence, and seeing disturbance as an opportunity for development (Wilson). We have the assets; we just need the will.References Anderson, Ben, and Paul Harrison. 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