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Artykuły w czasopismach na temat „Flicker effect”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Hashimoto, Yuki, and Yuko Yotsumoto. "Effect of Temporal Frequency Spectra of Flicker on Time Perception: Behavioral Testing and Simulations Using a Striatal Beat Frequency Model." Timing & Time Perception 3, no. 3-4 (2015): 201–22. http://dx.doi.org/10.1163/22134468-03002049.

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When a visually presented stimulus flickers, the perceived stimulus duration exceeds the actual duration. This effect is called ‘time dilation’. On the basis of recent electrophysiological findings, we hypothesized that this flicker induced time dilation is caused by distortions of the internal clock, which is composed of many oscillators with many intrinsic vibration frequencies. To examine this hypothesis, we conducted behavioral experiments and a neural simulation. In the behavioral experiments, we measured flicker induced time dilation at various flicker frequencies. The stimulus was eithe

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van Diepen, Rosanne M., Sabine Born, David Souto, Angélique Gauch, and Dirk Kerzel. "Visual Flicker in the Gamma-Band Range Does Not Draw Attention." Journal of Neurophysiology 103, no. 3 (2010): 1606–13. http://dx.doi.org/10.1152/jn.00629.2009.

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External transients, such as a flash or a startling sound, are believed to capture attention. Bauer, Cheadle, Parton, Müller, and Usher reported that attention can also be captured by a stimulus that flickers subliminally at 50 Hz, presumably by entrainment of neurons to the flicker frequency. In their reaction time (RT) task, participants had to locate a subtle change in the spatial frequency content of one of three Gabors (the target). Prior to target onset, presumably subliminal 50-Hz flicker in one of the Gabors served as a spatial cue. Bauer et al. found faster RTs when the cued location

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Glaholt, Mackenzie G., and Eyal M. Reingold. "Perceptual enhancement as a result of a top-down attentional influence in a scene viewing task: Evidence from saccadic inhibition." Quarterly Journal of Experimental Psychology 71, no. 1 (2018): 56–63. http://dx.doi.org/10.1080/17470218.2016.1245765.

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Prior research has shown that task instructions influence the locations and durations of eye fixations during scene viewing. These task-related changes in gaze patterns are likely to be associated with a top-down influence of attention. Presently we applied a saccadic-inhibition manipulation in order to detect another expected manifestation of top-down attention: perceptual enhancement. Participants viewed eight-item arrays containing photographs from two categories of scenes. Four of the photos depicted natural landscapes (“nature”) and the other four depicted urban environments (“buildings”)

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Stewart, Garrett. "Cinecriture: Modernism's Flicker Effect." New Literary History 29, no. 4 (1998): 727–68. http://dx.doi.org/10.1353/nlh.1998.0048.

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Hwang, Hyungsuk, Hyosun Kim, Youra Kim, et al. "P‐169: Late‐News Poster: How Display Size and Response time Affect flicker perception: Compare to flicker indices." SID Symposium Digest of Technical Papers 54, no. 1 (2023): 1708–11. http://dx.doi.org/10.1002/sdtp.16929.

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In this paper, the effect of visual angle and response time of display on flicker perception was studied. The influence of size effect and response time was observed using 30 Hz simulation image and two type of displays with fast and slow response time. Participants percived that the flicker became stronger as the size of the stimulus increased, but it was observed that there was no effect by response time of the display. However, the flicker indices such as JEITA, flicker visibility that are used as international standards, do not reflect these perceptual characteristics. Flicker indices need

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Chen, Shenfei, Bing Zhang, Xianxian Zeng, Yi Lin, and Haitian Zhao. "Methods to Reduce Flicker and Light Pollution of Low-Mounting-Height Luminaires in Urban Road Lighting." Sustainability 15, no. 10 (2023): 8185. http://dx.doi.org/10.3390/su15108185.

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Current low-mounting-height luminaires (LMHLs) have low effective luminous flux, high surface brightness, and many stray lights, resulting in high energy consumption and light interference, and the flicker effect may threaten driver safety. Currently, the flicker effect in LMHL lighting has been relatively poorly studied. However, in prior research, a Flicker Index (FI) quantification model was developed. In this study, we have modified the FI model to incorporate visual persistence, visual masking, and driving speed of the driver, and proposed a dynamic energy ratio model for quantifying flic

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K., Jayavelu*. "IMPROVEMENT OF VOLTAGE QUALITY IN INDUSTRIAL DISTRIBUTION SYSTEMS." Global Journal of Engineering Science and Research Management 4, no. 7 (2017): 85–91. https://doi.org/10.5281/zenodo.836619.

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This paper deals with the solution of the issue of exceeding the permissible levels for long-term flicker effect Plt in industrial distribution systems. Flicker effect in distribution systems is often exceeded as a result of the connection of electric arc furnaces, which exhibits high variable electrical power in-take. The article shows the benefits of measures on the steel plants, the distribution system operator and the transmission system operator. The main benefits were the installation SVC device and reconstruction of substation 220/110 kV to substation 400/110 kV. Measurements have shown

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Jeevan, J. Inamdar, and Iyswarya Annapoorani K. "A Review of Methods Employed to Identify Flicker Producing Sources." TELKOMNIKA Telecommunication, Computing, Electronics and Control 16, no. 2 (2018): 465–80. https://doi.org/10.12928/TELKOMNIKA.v16i2.6678.

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Because of increasing requirements of the present consumers and industrial units utilizing sensitive loads, there is need of good power quality in order to retain the power quality standards. Nowadays the study of the voltage flicker is becoming essential part of power quality studies. The flicker is typically the effect of a rapidly changing load which is large with respect to the short circuit ability of an electrical supply system. The inferior effects of voltage flicker include malfunctioning of power electronic equipment. Also it causes annoying effects to human. Hence detection of the fl

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9

Brigell, Mitchell, Antonio Strafella, Lucio Parmeggiani, Paul J. Demarco, and Gastone G. Celesia. "The effects of luminance and chromatic background flicker on the human visual evoked potential." Visual Neuroscience 13, no. 2 (1996): 265–75. http://dx.doi.org/10.1017/s0952523800007501.

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AbstractPrevious studies report that background luminance flicker, which is asynchronous with signal averaging, reduces the amplitude and increases the latency of the pattern-onset visual evoked potential (VEP). This effect has been attributed to saturation of the magnocellular (m-) pathway by the flicker stimulus. In the current study, we evaluate this hypothesis and further characterize this effect. We found that flicker had similar effects on the pattern-onset and pattern-reversal VEP, suggesting that the reversal and onset responses have similar generators. Chromatic flicker decreased late

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10

Gomez, J. C., and M. M. Morcos. "Flicker measurement and light effect." IEEE Power Engineering Review 22, no. 11 (2002): 11–15. http://dx.doi.org/10.1109/mper.2002.1045556.

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Waldin, N., M. Waldner, and I. Viola. "Flicker Observer Effect: Guiding Attention Through High Frequency Flicker in Images." Computer Graphics Forum 36, no. 2 (2017): 467–76. http://dx.doi.org/10.1111/cgf.13141.

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Shanmugaraja, Thangavel, Natesapillai Karthikeyan, Subburathinam Karthik, and Balamurugan Bharathi. "A super resolution generative adversarial networks and partition-based adaptive filtering technique for detect and remove flickers in digital color images." PLOS One 20, no. 5 (2025): e0317758. https://doi.org/10.1371/journal.pone.0317758.

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Eliminating flickering from digital images captured by cameras equipped with a rolling shutter is of paramount importance in computer vision applications. The ripple effect observed in an individual image is a consequence of the non-synchronized exposure of rolling shutters utilized in CMOS sensor-based cameras. To date, there have been only a limited number of studies focusing on the mitigation of flickering in single images. Furthermore, it is more feasible to eliminate these flickers with prior knowledge, such as camera specifications or matching images. To solve these problems, we present

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13

Neyezhmakov, Pavel, Oleksandr Pitiakov, Svitlana Shpak, Sabir Baghirov, Tamara Sakhno, and Gregory Kozhushko. "Luminance flicker of LED lamps and lighting fittings for general lighting." Ukrainian Metrological Journal, no. 3 (September 30, 2022): 33–42. http://dx.doi.org/10.24027/2306-7039.3.2022.269747.

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The results of the studies of the impact of luminance flicker of light sources powered by an alternating current network on the well-being and health of people, the peculiarities of the flicker of LED lighting installations and recommendations on the safe level of luminance flicker of lamps and lighting fittings for general lighting are analysed. The paper also considers modern methods of evaluating flicker parameters, which are recommended by international standards. The luminance flicker of commercial samples of LED lamps and lamps that are being introduced to the lighting market from

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Padmasali, AN, JE Noronha, and SG Kini. "The effect of capacitance on drive current of general lighting LED luminaires." Lighting Research & Technology 50, no. 8 (2017): 1270–81. http://dx.doi.org/10.1177/1477153517732811.

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The reliability of a LED luminaire depends on the reliability of each of its subsystems. Experience suggests that, of these subsystems, it is the LED driver that tends to fail earliest. Any LED driver has an electrolytic capacitor to limit the ripple current, which helps the luminaire to function appropriately. This paper describes the effects on ripple current of changes in the capacitance and thus on LED luminaire performance. A capacitor bank is developed containing electrolytic capacitor combinations to obtain 27 capacitance values in the range 0.017 to 1570 µF. Two commercially available

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15

Glicksohn, Joseph, and Batsheva Weisinger. "Time Production Intensively Studied in One Observer." Journal for Person-Oriented Research 8, no. 1 (2022): 24–36. http://dx.doi.org/10.17505/jpor.2022.24219.

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If one accepts the notion of an internal clock, then one must further presume that time production (TP) is attuned with the rate of functioning of the clock’s pacemaker. As the level of environmental stimulation increases, TP of the same target durations should decrease; this is particularly the case when one is exposed to flicker. In the present exploratory study, wherein the second author served in an n = 1 experiment, we intensely study TP, using a factorial design that crosses a factor of Flicker with one of Counting Strategy, to create 48 different conditions (sessions). In each session,

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Cheadle, Samuel W., Andrew Parton, Hermann J. Müller, and Marius Usher. "Subliminal Gamma Flicker Draws Attention Even in the Absence of Transition-Flash Cues." Journal of Neurophysiology 105, no. 2 (2011): 827–33. http://dx.doi.org/10.1152/jn.00357.2010.

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We recently reported evidence indicating that selective attention is deployed to a target location in a multi-object display, when the target event (a change of one of the objects) is preceded by subliminal flicker in the gamma range. However, concerns have been raised regarding the stimuli used in this study and the possible contribution of an artifactual cue: a “transition flash” between pretarget flicker offset and target onset. Here, we report a series of experiments investigating the existence and potential contribution to selective attention of this transition-flash cue under different p

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Ding, Xiaoying, and Xin Zhao. "Study on the Influence of Atmospheric Light Intensity Scintillation Effect on Optical Fiber Coupling Efficiency." Photonics 11, no. 9 (2024): 884. http://dx.doi.org/10.3390/photonics11090884.

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Light intensity flicker is the most basic and important effect of turbulence. Fiber coupling efficiency is the primary parameter that ensures the system’s communication quality. The light intensity flicker effect caused by atmospheric turbulence significantly affects the coupling efficiency of space light in a single-mode optical fiber. Based on the principle of fiber coupling efficiency, this paper first establishes the relationship between light intensity flicker and spatial coherence radius, then analyzes the influence of light intensity flicker on fiber coupling efficiency through the spat

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Won, Yong-Yuk, and Jeungmo Kang. "Imperceptible Flicker Noise Reduction Using Pseudo-Flicker Weight Functionalized Derivative Equalization in Light-Fidelity Transmission Link." Sensors 22, no. 22 (2022): 8857. http://dx.doi.org/10.3390/s22228857.

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A new technique to reduce flicker noise generated in light-fidelity (Li-Fi) transmission links based on the white light-emitting diode (LED) is proposed. Here, flicker noise with a frequency of 120 Hz, which is twice the frequency of AC power (60 Hz), is generated. The proposed technique is implemented in the receiver of the Li-Fi link. It can reduce flicker noise regardless of various digital modulation formats. In addition, there is no need to change the structure of the electrical circuit driving the LED to reduce the flicker noise. As a result, the non-return to-zero-on-off-keying (NRZ–OOK

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Amaya, Ioanna Alicia, Nele Behrens, David John Schwartzman, Trevor Hewitt, and Timo Torsten Schmidt. "Effect of frequency and rhythmicity on flicker light-induced hallucinatory phenomena." PLOS ONE 18, no. 4 (2023): e0284271. http://dx.doi.org/10.1371/journal.pone.0284271.

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Flicker light stimulation (FLS) uses stroboscopic light on closed eyes to induce transient visual hallucinatory phenomena, such as the perception of geometric patterns, motion, and colours. It remains an open question where the neural correlates of these hallucinatory experiences emerge along the visual pathway. To allow future testing of suggested underlying mechanisms (e.g., changes in functional connectivity, neural entrainment), we sought to systematically characterise the effects of frequency (3 Hz, 8 Hz, 10 Hz and 18 Hz) and rhythmicity (rhythmic and arrhythmic conditions) on flicker-ind

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Chen, Dongchuan, Tao Yang, Zheng Zhang, et al. "36.2: ADS Display Mode Gaming TV compatible with G‐Sync." SID Symposium Digest of Technical Papers 54, S1 (2023): 227–31. http://dx.doi.org/10.1002/sdtp.16269.

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This paper study the impact of pixel voltage leakage and liquid crystal flexoelectric effect on flicker with simulation and measurement method. The impact rule of pixel architecture, TFT voltage, electrode design, liquid crystal material, driving signal and other factors is obtained, and the key factors under different conditions are identified. The pixel design and liquid crystal scheme under different conditions are proposed, and a strategy of data voltage modulation at the blanking stage combined with frequency‐wise ACC brightness compensation is established to reduce flicker. Based on the

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Huang, Lianglong, Jian Tao, Fan Liu, et al. "36‐1: Low‐frequency flicker mechanism and improvement solutions of a liquid crystal display." SID Symposium Digest of Technical Papers 55, S1 (2024): 292–96. http://dx.doi.org/10.1002/sdtp.17064.

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Low refresh rate liquid crystal displays have been proposed to reduce power consumption, which is already the trend. In our early low‐temperature polycrystalline silicon liquid crystal displays, low‐frequency driving caused the screen to flicker. We investigated the flicker mechanism and improvement solutions in this paper. The flicker mechanism is mainly related to thin‐film transistor leakage current, capacitive coupling effect, and cell material property. By adopting some solutions, the flicker of gray level 127 can reach‐60dB in a 20Hz 13.5‐inch 2.8K demo. These results contribute to the d

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Yoo, Seong-Hyeon, Seung-Hwa Baek, Dong-Jin Lee, et al. "P‐246: Late‐News Poster: Effective flicker reduction through luminance compensation between pixels in the fringe field switching mode using positive dielectric liquid crystals." SID Symposium Digest of Technical Papers 55, no. 1 (2024): 2104–7. http://dx.doi.org/10.1002/sdtp.18019.

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We develop the positive dielectric liquid crystals for flicker free that saves the power consumption and improves the image quality. The dielectric constant was optimized for a low flexoelectric effect and flicker is advanced by adding the LC component which reduces the luminance difference between frames. We confirmed that the a‐Si TFT LCD Panel incorporating the developed LC operates without flicker at the driving frequency of 40Hz.

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Pflug, R., R. Nelson, and P. K. Ahnelt. "Background-induced flicker enhancement in cat retinal horizontal cells. I. Temporal and spectral properties." Journal of Neurophysiology 64, no. 2 (1990): 313–25. http://dx.doi.org/10.1152/jn.1990.64.2.313.

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1. Dim backgrounds can enhance small-spot flicker responses of cat retinal horizontal cells by a factor of 2 or more. 2. Intracellular marking with horseradish peroxidase (HRP) reveals that this enhancement effect occurs in--but is not necessarily limited to--the cone-connected, A-type horizontal cell. 3. Flicker amplitudes decrease over a frequency range from 3 to 36 Hz of square-wave photic stimulation. There is little evidence of flicker-response enhancement at 3 Hz. Flicker-response enhancement is typically 2-6 times larger at 35 than at 6 Hz. 4. Inspection of flicker waveforms indicates b

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Yavuz, Cenk. "Investigation of Photometric Flicker Phenomenon Effect on the Perception Level of Office Workers in Different Age Groups." International Journal for Research in Applied Science and Engineering Technology 9, no. 11 (2021): 889–93. http://dx.doi.org/10.22214/ijraset.2021.38921.

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Abstract: Today, under the conditions where the number of office workers and artificial lighting applications have increased, although the effects of the Photometric Flicker phenomenon are serious, it is an issue that has not been understood in detail and people are not aware of it. Photometric Flicker phenomenon, which is a direct result of using ballasts or drivers with low power factor and lacking the necessary filtering features; It causes results such as decreased visual performance, loss of attention and perception. Considering that the conversion of LED luminaires is still not completed

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Kim, Hyosun, Eunjung Lee, Youra Kim, Hyungsuk Hwang, Dongyeol Yeom, and Yongjo Kim. "Effect of Brightness and Size on Display Flicker Perception: Comparison with Flicker Indices." Electronic Imaging 36, no. 11 (2024): 235–1. http://dx.doi.org/10.2352/ei.2024.36.11.hvei-235.

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Zhao, X., D. Hou, Y. Lin, and W. Xu. "The effect of stroboscopic effect on human health indicators." Lighting Research & Technology 52, no. 3 (2019): 389–406. http://dx.doi.org/10.1177/1477153519871688.

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The stroboscopic effect from LED light sources can become considerable in working environments. Therefore, this study aims to explore the short-term health effect of a temporal light artefact. The experiment was carried out featuring 10 university students. Three frequencies and three modulation depths were assessed. Psychological reaction was evaluated through subjective scales, while physiological parameters were also collected for mutual validation and analysis. It was found that when the conditions are in the high-risk zone defined by IEEE Standard 1789-2015, subjects considered these cond

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Yu, BingBing, and Li Sui. "Effects of motion type on motion-onset and steady-state visual evoked potentials: rotation vs. flicker." NeuroReport 35, no. 3 (2024): 191–99. http://dx.doi.org/10.1097/wnr.0000000000002004.

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The underlying mechanisms of information processing for two basic motion types, rotation and flicker, are not fully understood. Rotational and flickering animations at four speeds – 7 frames per second (fps), 8 fps, 11 fps, and 12 fps, respectively – are presented as visual stimuli. The motion-onset visual evoked potentials (VEPs) and steady-state VEPs (SSVEP) elicited by these motion stimuli were compared between the rotation and flicker motion types at time windows of 0–500 ms and 1000–5000 ms post-stimulus, respectively. The standardized low-resolution electromagnetic tomography (sLORETA) s

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Thomson, W. David, and John Saunders. "The Perception of Flicker on Raster-Scanned Displays." Human Factors: The Journal of the Human Factors and Ergonomics Society 39, no. 1 (1997): 48–66. http://dx.doi.org/10.1518/001872097778940623.

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Experiments have verified the observations of Corbett and White that people are more sensitive to flicker on raster-scanned displays (e.g., television and visual display terminals) if the field scan direction is changed from the conventional top-to-bottom direction to bottom to top, left to right, or right to left. When measured by means of the flicker fusion frequency (FFF), this effect is present only when normal eye movements are permitted. With fixation, the FFF is similar for all scan directions. The effect is demonstrated by the different frequencies at which a directional component is d

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Behmann, Nicolai, and Holger Blume. "Psychophysics Study on LED Flicker Artefacts for Automotive Digital Mirror Replacement Systems." Electronic Imaging 2020, no. 11 (2020): 234–1. http://dx.doi.org/10.2352/issn.2470-1173.2020.11.hvei-234.

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LED flicker artefacts, caused by unsynchronized irradiation from a pulse-width modulated LED light source captured by a digital camera sensor with discrete exposure times, place new requirements for both visual and machine vision systems. While latter need to capture relevant information from the light source only in a limited number of frames (e.g. a flickering traffic light), human vision is sensitive to illumination modulation in viewing applications, e.g. digital mirror replacement systems. In order to quantify flicker in viewing applications with KPIs related to human vision, we present a

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Zhuang, Xiaohua, Tam Tran, Doris Jin, Riya Philip, and Chaorong Wu. "Aging effects on contrast sensitivity in visual pathways: A pilot study on flicker adaptation." PLOS ONE 16, no. 12 (2021): e0261927. http://dx.doi.org/10.1371/journal.pone.0261927.

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Contrast sensitivity is reduced in older adults and is often measured at an overall perceptual level. Recent human psychophysical studies have provided paradigms to measure contrast sensitivity independently in the magnocellular (MC) and parvocellular (PC) visual pathways and have reported desensitization in the MC pathway after flicker adaptation. The current study investigates the influence of aging on contrast sensitivity and on the desensitization effect in the two visual pathways. The steady- and pulsed-pedestal paradigms were used to measure contrast sensitivity under two adaptation cond

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Park, Sang-Seo, Hye-Sang Park, Chang-Ju Kim, et al. "Combined effects of aerobic exercise and 40-Hz light flicker exposure on early cognitive impairments in Alzheimer’s disease of 3×Tg mice." Journal of Applied Physiology 132, no. 4 (2022): 1054–68. http://dx.doi.org/10.1152/japplphysiol.00751.2021.

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Exercising in a 40-Hz light flicker environment was more effective than exercise or 40-Hz light flicker alone. This synergistic effect may prevent cognitive dysfunction by inhibiting Aβ, tau pathway, and neuroinflammation and enhancing neuroplasticity and mitochondrial functions in the hippocampus during early Alzheimer’s disease.

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Somer, Elif, John Allen, Joseph L. Brooks, Vaughan Buttrill, and Amir-Homayoun Javadi. "Theta Phase-dependent Modulation of Perception by Concurrent Transcranial Alternating Current Stimulation and Periodic Visual Stimulation." Journal of Cognitive Neuroscience 32, no. 6 (2020): 1142–52. http://dx.doi.org/10.1162/jocn_a_01539.

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Sensory perception can be modulated by the phase of neural oscillations, especially in the theta and alpha ranges. Oscillatory activity in the visual cortex can be entrained by transcranial alternating current stimulation (tACS) as well as periodic visual stimulation (i.e., flicker). Combined tACS and visual flicker stimulation modulates BOLD response, and concurrent 4-Hz auditory click train, and tACS modulate auditory perception in a phase-dependent way. In this study, we investigated whether phase synchrony between concurrent tACS and periodic visual stimulation (i.e., flicker) can modulate

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Reena Durai, C. Vijay, Amithavikram R. Hathibelagal, Marisa Rodriguez-Carmona, John L. Barbur, and Shrikant R. Bharadwaj. "Effect of monocular sensitivity on binocular summation of luminance-modulated flicker." PLOS ONE 18, no. 1 (2023): e0280785. http://dx.doi.org/10.1371/journal.pone.0280785.

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Binocular summation of luminance contrast signals in the spatial domain has been investigated in many studies, but less attention has been paid to the analogous interactions in the temporal domain. The present study determined the impact of monocular sensitivity on the binocular detection of luminance-modulated flickering stimuli. Binocular summation ratios (BSRs) were determined in 13 visually-normal adults for a range of monocular flicker modulation thresholds (FMTs), generated by changing stimulus size (7’– 60’) and luminance (mesopic and photopic). Monocular and binocular FMTs were measure

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Kang, Cheol-Woo, Hyunwon Moon, and Jong-Ryul Yang. "Switched-Biasing Techniques for CMOS Voltage-Controlled Oscillator." Sensors 21, no. 1 (2021): 316. http://dx.doi.org/10.3390/s21010316.

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A voltage-controlled oscillator (VCO) is a key component to generate high-speed clock of mixed-mode circuits and local oscillation signals of the frequency conversion in wired and wireless application systems. In particular, the recent evolution of new high-speed wireless systems in the millimeter-wave frequency band calls for the implementation of the VCO with high oscillation frequency and low close-in phase noise. The effect of the flicker noise on the phase noise of the VCO should be minimized because the flicker noise dramatically increases as the deep-submicron complementary metal-oxide-

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Benea, Licinius, Mikael Carmona, Viktor Fischer, Florian Pebay-Peyroula, and Romain Wacquez. "Impact of the Flicker Noise on the Ring Oscillator-based TRNGs." IACR Transactions on Cryptographic Hardware and Embedded Systems 2024, no. 2 (2024): 870–89. http://dx.doi.org/10.46586/tches.v2024.i2.870-889.

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Ring Oscillators (RO) are often used in true random number generators (TRNG). Their jittered clock signal, used as randomness source, originates from thermal and flicker noises. While thermal noise jitter is generally used as the main source of randomness, flicker noise jitter is not due to its autocorrelation. This work aims at qualitatively settling the issue of the influence of flicker noise in TRNGs, as its impact increases in newer technology nodes. For this, we built a RO behavioural model, which generates time series equivalent to a jittered RO signal. It is then used to generate the ou

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Gómez, María, Cristina López De Subijana, Raquel Antonio, and Enrique Navarro. "Kinematic Pattern of the Drag-Flick: a Case Study." Journal of Human Kinetics 35, no. 1 (2012): 27–33. http://dx.doi.org/10.2478/v10078-012-0076-7.

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The drag-flick is more efficient than hits or pushes when a penalty corner situation is in effect in field hockey. Previous research has studied the biomechanical pattern of the drag-flick, trying to find the cues for an optimal performance. On the other hand, some other studies have examined the most effective visual pick-up of relevant information in shots and goalkeeper anticipation. The aim of this study was to analyse the individual differences in the drag-flick pattern in order to provide relevant information for goalkeepers. One female skilled drag-flicker participated in the study. A V

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MacEnri, Joseph, Matthew Reed, and Torbjörn Thiringer. "Influence of tidal parameters on SeaGen flicker performance." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 371, no. 1985 (2013): 20120247. http://dx.doi.org/10.1098/rsta.2012.0247.

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This paper presents the analysis of the study of the flicker emitted from the 1.2 MW tidal energy converter (TEC), SeaGen, against varying tidal parameters. This paper outlines the main elements of the TEC itself, the environment it is located in and the measurement set up. In this paper, the flicker emitted by the TEC is compared with the different tidal parameters, including flood and ebb tides, tidal speed, water depth and turbulence strength and intensity. Flicker emissions have been calculated from measured data in over 90 measurement (10 min) periods, and all of the tidal parameters vary

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Anderson, Andrew J., and Algis J. Vingrys. "Effect of stimulus duration in flicker perimetry." Clinical and Experimental Ophthalmology 28, no. 3 (2000): 223–26. http://dx.doi.org/10.1046/j.1442-9071.2000.00299.x.

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Bulatov, Yuri, Andrey Kryukov, and Nguyen Van Huan. "Flicker control in mains with distributed generation plants." E3S Web of Conferences 209 (2020): 07001. http://dx.doi.org/10.1051/e3sconf/202020907001.

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The use of distributed generation (DG) plants in power supply systems is a rapid development line. However, the impact of DG on power quality is multivalued. On the one hand, the presence of DG allows to reduce voltage losses. On the other hand, a phenomenon called flicker and associated with rapid voltage fluctuations is possible. This effect is usually manifested at an abrupt voltage drop in the DG generator connection unit. The processes taking place in the network when flicker occurs in networks with DG have not been sufficiently studied. The article presents results of the flicker modelin

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Umeton, Diana, Jenny C. A. Read, and Candy Rowe. "Unravelling the illusion of flicker fusion." Biology Letters 13, no. 2 (2017): 20160831. http://dx.doi.org/10.1098/rsbl.2016.0831.

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For over 150 years, researchers have investigated the anti-predator function of animal patterns. However, this work has mainly focused on when prey remain still, and has only recently started to incorporate motion into the study of defensive coloration. As motion breaks camouflage, a new challenge is to understand how prey avoid predators while moving around their environment, and if a moving prey can ever be camouflaged. We propose that there is a solution to this, in that a ‘flicker fusion effect’ can change the appearance of the prey in the eyes of their predators to reduce the chances of i

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BEHREND, KONSTANTIN, BORIS BENKNER, and CARLOS MORA-FERRER. "Temporal resolution and temporal transfer properties: Gabaergic and cholinergic mechanisms." Visual Neuroscience 24, no. 6 (2007): 787–97. http://dx.doi.org/10.1017/s0952523807070691.

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Temporal resolution is a basic property of the visual system and critically depends upon retinal temporal coding properties which are also of importance for directional coding. Whether the temporal coding properties for directional coding derive form inherent properties or critically depend upon the temporal coding mechanisms is unclear. Here, the influence of acetylcholine and GABA upon photopic temporal coding was investigated in goldfish, using flicker stimuli, in a behavioral and an electrophysiological (ERG) approach. The goldfish temporal resolution ability decreased from more than 90% c

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Masnicki, Romuald, Janusz Mindykowski, Beata Palczynska, and Dawid Werner. "Research on the Flicker Effect in Modern Light Sources Powered by an Electrical Network." Energies 17, no. 20 (2024): 5080. http://dx.doi.org/10.3390/en17205080.

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Disruptions in power quality have a negative impact on many energy consumers. These include lighting, where interference manifests itself, among others, in the form of light flickering. The article presents phenomena accompanying the operation of modern light sources against the background of exemplary results of studies on the flicker of conventional light sources, such as incandescent or fluorescent lamps. The flickering effect of light generated in modern lamps can occur under stable voltage conditions in the supply network. The main subjects of the conducted research were solid-state light

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Angeli, Orsolya, Dániel Sándor Veres, Zoltán Zsolt Nagy, and Miklós Schneider. "Az IMEA ADR III kritikus fúziós frekvenciavizsgáló eszközzel végzett mérések reprodukálhatóságának vizsgálata." Orvosi Hetilap 157, no. 27 (2016): 1079–86. http://dx.doi.org/10.1556/650.2016.30477.

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Introduction: Measurement of central critical flicker-fusion frequency is a common screening test for eye diseases and additionally it can serve as a useful diagnostic test in numerous neurological and internal diseases. The test might also be used for monitoring purposes. Aim: The aim of the authors was to evaluate a digital central critical flicker-fusion frequency measuring device (IMEA ADR III) in 30 young, healthy Hungarian subjects. Method: After a general ophthalmological screening examination, monocular central critical flicker-fusion frequency was measured with four colours. Measureme

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Dorner, Guido T., Gerhard Garhofer, Barbara Kiss, et al. "Nitric oxide regulates retinal vascular tone in humans." American Journal of Physiology-Heart and Circulatory Physiology 285, no. 2 (2003): H631—H636. http://dx.doi.org/10.1152/ajpheart.00111.2003.

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The purpose of the present study was to investigate the contribution of basal nitric oxide (NO) on retinal vascular tone in humans. In addition, we set out to elucidate the role of NO in flicker-induced retinal vasodilation in humans. Twelve healthy young subjects were studied in a three-way crossover design. Subjects received an intravenous infusion of either placebo or NG-monomethyl-l-arginine (l-NMMA; 3 or 6 mg/kg over 5 min), an inhibitor of NO synthase. Thereafter, diffuse luminance flicker was consecutively performed for 16, 32, and 64 s at a frequency of 8 Hz. The effect of l-NMMA on re

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Huemer, Karl-Heinz, Gerhard Garhöfer, Claudia Zawinka, et al. "Effects of dopamine on human retinal vessel diameter and its modulation during flicker stimulation." American Journal of Physiology-Heart and Circulatory Physiology 284, no. 1 (2003): H358—H363. http://dx.doi.org/10.1152/ajpheart.00642.2002.

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We performed a randomized, subject-blinded, placebo and time-controlled, two-way crossover study in 12 healthy male subjects. Placebo or dopamine was administered on two separate study days. After saline infusion, dopamine hydrochloride was infused in three consecutive doses (5, 10, and 15 μg · kg−1 · min−1). Plasma levels of dopamine were determined at each perfusion step. Arterial and venous retinal vessel diameters were measured with the use of a Zeiss retinal vessel analyzer. Diffuse luminance flicker stimuli of 8 Hz were applied for 60 s. Blood pressure and pulse rate were monitored conti

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Wong, Eva, and Naomi Weisstein. "A New Visual Illusion: Flickering Fields are Localized in a Depth Plane behind Nonflickering Fields." Perception 14, no. 1 (1985): 13–17. http://dx.doi.org/10.1068/p140013.

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Flickering regions of the visual field are perceived to lie well behind regions which are not flickered. The depth segregation is not due to luminance differences since the average temporal luminance across all the regions was equal. This depth effect produced by flicker is not dependent on the texture of the visual field; nor does it depend on a specific configuration of the flickering and nonflickering areas. It is optimal at a temporal frequency around 6 Hz, which suggests that visual channels responding maximally to high temporal frequencies are involved in the segregation of perceptual re

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Crevier, Daniel W., and Markus Meister. "Synchronous Period-Doubling in Flicker Vision of Salamander and Man." Journal of Neurophysiology 79, no. 4 (1998): 1869–78. http://dx.doi.org/10.1152/jn.1998.79.4.1869.

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Crevier, Daniel W. and Markus Meister. Synchronous period-doubling in flicker vision of salamander and man. J. Neurophysiol. 79: 1869–1878, 1998. Periodic flashes of light have long served to probe the temporal properties of the visual system. Here we show that during rapid flicker of high contrast and intensity the eye reports to the brain only every other flash of light. In this regime, retinal ganglion cells of the salamander fire spikes on alternating flashes. Neurons across the entire retina are locked to the same flashes. The effect depends sharply on contrast and flash frequency. It res

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Dong, Ping, Ka Wai Eric Cheng, Dao Hong Wang, and Bangalore Prabhakar Divakar. "Investigation on the Modeling and Ageing Characteristics of the HID Car Headlight Automotive System." Key Engineering Materials 364-366 (December 2007): 1280–84. http://dx.doi.org/10.4028/www.scientific.net/kem.364-366.1280.

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In this study, ageing effect for xenon through experiment has been studied. The study focuses on the modeling, ageing characteristics of xenon car headlight. The modeling of the lamp is based on spline interpolation algorithms. In this model, the voltage drop at the electrodes is considered as the aging factor. Ageing characteristics under the flicker condition for 4 types of xenon car headlight lamps have been measured. The flicker time is 4 seconds turn on and 2 seconds turn off, and the total testing time is 48 hours. The luminous, voltage and current of the lamp are measured. It is found t

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Ismail, Rola, Allan K. Hansen, Peter Parbo, et al. "The Effect of 40-Hz Light Therapy on Amyloid Load in Patients with Prodromal and Clinical Alzheimer’s Disease." International Journal of Alzheimer's Disease 2018 (July 30, 2018): 1–5. http://dx.doi.org/10.1155/2018/6852303.

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Alzheimer’s disease (AD) is a progressive neurodegenerative disorder. AD pathology is characterized by abnormal aggregation of the proteins amyloid-β (Aβ) and hyperphosphorylated tau. No effective disease modifying therapies are currently available. A short-duration intervention with 40 Hz light flicker has been shown to reduce brain Aβ load in transgenic mice. We aimed to test the effect of a similar short-duration 40 Hz light flicker regime in human AD patients. We utilized a Light Emitting Diode (LED) light bulb with a 40 Hz flicker. Six Aβ positive patients received 10 days of light therap

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Anderson, Andrew John, and Algis Jonas Vingrys. "Effect of eccentricity on luminance-pedestal flicker thresholds." Vision Research 42, no. 9 (2002): 1149–56. http://dx.doi.org/10.1016/s0042-6989(02)00033-0.

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