Responses and receptive fields of amacrine cells and ganglion cells in the salamander retina.

abstract：:First a model is presented that accurately summarizes the dynamic properties of cat horizontal (H-) cells under photopic conditions as measured in our previous work. The model predicts that asymmetries in response to dark as compared to light flashes are flash-duration dependent. This somewhat surprising prediction is...

journal_title：Vision research

authors： van de Grind WA,Lankheet MJ,van Wezel RJ,Rowe MH,Hulleman J

更新日期：1996-12-01 00:00:00

abstract：:Velocity matching using the method of Constant Stimuli shows that perceived velocity varies with contrast [Thompson, P. (1982). Perceived rate of movement depends upon contrast. Vision Research, 22, 377-380]. Random contrast jitter would therefore be expected to increase the slopes of psychometric functions, and thus ...

journal_title：Vision research

authors： Johnston A,Benton CP,Morgan MJ

更新日期：1999-11-01 00:00:00

abstract：:Microspectrophotometry (MSP) shows rhodopsin highly concentrated (about 3.0 mmol/l) in rod outer segments (ROS). Calculation of the in vivo absorption spectrum of human rhodopsin from such data reveals a striking failure to agree with the action spectrum of human rod vision. Agreement is good between the spectral dist...

journal_title：Vision research

authors： Alpern M,Fulton AB,Baker BN

更新日期：1987-01-01 00:00:00

abstract：:The mechanisms responsible for generating illusory contours are thought to fulfil an adaptive role in providing estimates of missing contour fragments generated by partial camouflage. One striking apparent counter-example to this view was described in Current Biology 21 (2011) 492-496, which showed that illusory conto...

journal_title：Vision research

authors： Anderson BL,Tan K,Marlow PJ

更新日期：2019-05-01 00:00:00

abstract：:Subretinal injections of human retinal pigment epithelial (RPE) cells early in the course of retinal degeneration in Royal College of Surgeons (RCS) rats can rescue photoreceptors. Fourteen injected animals were studied using a double flash electroretinogram (ERG): 10 were examined longitudinally and four terminally w...

journal_title：Vision research

authors： Pinilla I,Lund RD,Lu B,Sauvé Y

更新日期：2005-03-01 00:00:00

abstract：:A modified version of the 'path finder' display consisting of many small oriented Gabor patches was used to study the joint contributions of spatial and temporal structures to shape perception. A two-interval forced-choice procedure measured detectability of curved 'paths' defined by orientation ('good continuation') ...

journal_title：Vision research

authors： Lee SH,Blake R

更新日期：2001-07-01 00:00:00

abstract：:How does nearby motion affect the perceived speed of a target region? When a central drifting Gabor patch is surrounded by translating noise, its speed can be misperceived over a fourfold range. Typically, when a surround moves in the same direction, perceived centre speed is reduced; for opposite-direction surrounds ...

journal_title：Vision research

authors： Baker DH,Graf EW

更新日期：2010-01-01 00:00:00

abstract：:We investigated temporal summation of the rods in a complete achromat, who lacks cone vision. Critical duration (tc) was estimated both at the achromat's preferred area of fixation and at an area 12 deg laterally in the nasal visual field. Comparable tc determinations were made in a normal trichromat. At background lu...

journal_title：Vision research

authors： Sharpe LT,Fach C,Nordby K

更新日期：1988-01-01 00:00:00

abstract：:We have used DOG stimuli to selectively stimulate size tuned channels within the visual system in order to investigate the relationship between stereo and vernier acuity. We measured these acuities as a function of spatial frequency, retinal eccentricity and distance from the fixation point in depth. Both hyperacuitie...

journal_title：Vision research

authors： Schor CM,Badcock DR

更新日期：1985-01-01 00:00:00

abstract：:Previously we reported that recently myopic children accommodated insufficiently to blur induced by negative lenses. The purpose of the present study was to relate changes in blur-driven accommodation to myopia development in children. Refractive errors and the accommodation response function (ARF) were measured in 23...

journal_title：Vision research

authors： Gwiazda J,Bauer J,Thorn F,Held R

更新日期：1995-05-01 00:00:00

abstract：:A pincushion formed by four arcs on a gray background looks darker when the arcs are black, and lighter when the arcs are white. Yet, a matching-experiment shows that this difference is relative. Whereas the apparently darker pincushion requires a matching luminance that is lower than the background luminance (i.e. as...

journal_title：Vision research

authors： De Weert CM,Spillmann L

更新日期：1995-05-01 00:00:00

abstract：:Visual search can simply be defined as the task of looking for objects of interest in cluttered visual environments. Typically, the human visual system succeeds at this by making a series of rapid eye movements called saccades, interleaved by discrete fixations. However, very little is known on how the brain programs ...

journal_title：Vision research

authors： Tavassoli A,Linde Iv,Bovik AC,Cormack LK

更新日期：2009-01-01 00:00:00

abstract：:We describe an extraocular muscle (EOM) force transducer that provides low-noise signals from an alert animal for several months, is implanted without disinserting the muscle, and is well-tolerated by the body, and present results obtained with the device. The transducer can be used to study orbital statics and dynami...

journal_title：Vision research

authors： Miller JM,Robins D

更新日期：1992-06-01 00:00:00

abstract：:It has been known for some time that visual acuity in amblyopia is higher for single letters than for letters in a row (termed crowding). Early work showed that this could not be accounted for on the basis of the destructive interaction of adjacent contours (termed contour interaction), which was shown to be, in resol...

journal_title：Vision research

authors： Hess RF,Dakin SC,Tewfik M,Brown B

更新日期：2001-08-01 00:00:00

abstract：:We propose and test the simple hypothesis that a chicken eye can emmetropize without cues derived from accommodation or colour just by maximizing retinal image contrast. Using different translucent occluders with known modulation transfer functions we found that deprivation myopia is correlated with the amount of imag...

journal_title：Vision research

authors： Bartmann M,Schaeffel F

更新日期：1994-04-01 00:00:00

abstract：:There are encouraging advances in prosthetic vision for the blind, including retinal and cortical implants, and other "sensory substitution devices" that use tactile or electrical stimulation. However, they all have low resolution, limited visual field, and can display only few gray levels (limited dynamic range), sev...

journal_title：Vision research

authors： Jung JH,Aloni D,Yitzhaky Y,Peli E

更新日期：2015-06-01 00:00:00

abstract：:(1) We studied the influence of photoperiod and unilateral lid suture on post-natal ocular growth in two types of White Leghorn chicks previously reported to respond differently to visual deprivation, Truslow and Cornell K chicks. We analyzed the chicks after 2 weeks of rearing, a time period commonly used in neuropha...

journal_title：Vision research

authors： Stone RA,Lin T,Desai D,Capehart C

更新日期：1995-05-01 00:00:00

abstract：:The spectral properties of human color detection mechanisms were measured using a noise masking technique that minimizes the possibility of off-axis looking and artifactually narrow estimates of bandwidth. Observers were induced to use a single detection mechanism throughout a spectral bandwidth measurement by using s...

journal_title：Vision research

authors： D'Zmura M,Knoblauch K

更新日期：1998-10-01 00:00:00

abstract：:Color appearance can be studied using either Maxwellian-view optical systems or natural viewing (Newtonian-view). We show that the results are not precisely comparable when the natural pupil is appreciably larger than the entrance pupil of the Maxwellian beam. The wavelength for any given hue that is obtained from one...

journal_title：Vision research

authors： Gordon J,Abramov I

更新日期：2008-08-01 00:00:00

abstract：:We compared the mechanisms responsible for orientation discrimination of stimuli defined by luminance and red/green isoluminant contrast. A four-alternative forced-choice (4-AFC) paradigm was used to determine thresholds for discriminating 1 cpd sinewave gratings differing in orientation, contrast, or both. When measu...

journal_title：Vision research

authors： Reisbeck TE,Gegenfurtner KR

更新日期：1998-04-01 00:00:00

abstract：:It has been proposed that there is a perceptual compensation for the difference between the speeds of light and sound. We examined this possibility using a range of auditory-visual tasks, in which performance depends on the relative timing of auditory and visual information, and manipulated viewing distance to test fo...

journal_title：Vision research

authors： Arnold DH,Johnston A,Nishida S

更新日期：2005-05-01 00:00:00

abstract：:Recent neurological studies of selective impairments in first and second-order motion processing are of considerable relevance in elucidating the mechanisms of motion perception in normal human observers. We examine the stimuli which have been used to assess first and second-order motion processing capabilities in cli...

journal_title：Vision research

authors： Clifford CW,Vaina LM

更新日期：1999-01-01 00:00:00

abstract：:The perceived duration of a visual event is highly related to stimulus attributes. It is well known that a moving stimulus appears to last longer than a static one does. Previous studies have demonstrated that the time dilation in a moving stimulus can be influenced by perceived motion, rather than by mere physical mo...

journal_title：Vision research

authors： Hayashi D,Iwasawa H,Osugi T,Murakami I

更新日期：2019-03-01 00:00:00

abstract：:Pupil responses to light are greatly influenced by initial pupil size. Small pupils, operating under photopic conditions, show tonic responses to step increases of light and high gains; thus the pupil is a good regulator of light. Large pupils, operating under mesopic or scotopic conditions show phasic responses, "pup...

journal_title：Vision research

authors： Sun F,Stark L

更新日期：1983-01-01 00:00:00

abstract：:This paper describes evidence for spatial aliasing in human motion perception. For a certain range of spatial frequencies, interference fringes drifting across the extrafoveal retina resemble two-dimensional spatial noise drifting in the opposite direction. For retinal locations within 10 deg of the fovea, the perceiv...

journal_title：Vision research

authors： Coletta NJ,Williams DR,Tiana CL

更新日期：1990-01-01 00:00:00

abstract：:Three experiments investigated the global effect with foveal distractors displayed in the same hemifield as more eccentric saccade targets. Distractors were x-letter strings of variable length and targets corresponded to the central letter of letter strings (e.g., 'xxxkxxx'). Results showed that only foveal distractor...

journal_title：Vision research

authors： Vitu F,Lancelin D,Jean A,Farioli F

更新日期：2006-12-01 00:00:00

abstract：:We demonstrate a new type of interaction between suprathreshold colour (chromatic) and luminance contrast in the context of binocular, specifically dichoptic vision. A highly saturated isoluminant violet 'mask' disk in one eye greatly elevates detection thresholds for an isoluminant violet 'test' disk in the other eye...

journal_title：Vision research

authors： Kingdom FA,Wang D

更新日期：2015-11-01 00:00:00

abstract：:Perception of short-range motion was studied as a function of adapting luminance and of stimulus contrast in computer simulations and in psychophysical experiments. The stimuli were random dots plotted on an oscilloscope in two sequential frames, separated by an inter-stimulus interval (ISI). Both in the simulations a...

journal_title：Vision research

authors： Dawson M,Di Lollo V

更新日期：1990-01-01 00:00:00

abstract：:When the method of constant stimuli is used to measure heterochromatic brightness matches, the resulting matches can be strongly biased toward the center of the range of test luminances used. In the present paper, we investigate the source of this centering bias. The stimuli were 2 degrees red squares presented in a g...

journal_title：Vision research

authors： Pereverzeva M,Teller DY

更新日期：2005-11-01 00:00:00

abstract：:In natural settings, our eyes tend to track approaching objects. To estimate motion, the brain should thus take account of eye movements, perhaps using retinal cues (retinal slip of static objects) or extra-retinal signals (motor commands). Previous work suggests that extra-retinal ocular vergence signals do not suppo...

journal_title：Vision research

authors： Welchman AE,Harris JM,Brenner E

更新日期：2009-03-01 00:00:00