Multifocal pupillary light response fields in normal subjects and patients with visual field defects.

abstract：:Human subjects perceive two crossing bars, one in front of the other, when shown a cross with disparity added to its horizontal limbs, and they also perceive neon-color spreading when shown a stereoscopic Redies-Spillmann figure. It has thus been hypothesized that the human visual system follows the principle of gener...

journal_title：Vision research

authors： Uka T,Tanaka H,Kato M,Fujita I

更新日期：1999-07-01 00:00:00

abstract：:Increment-threshold spectral sensitivity functions were taken foveally and at four other retinal locations with different sized test stimuli. For the fovea and parafovea at 4 degrees, a 1 degree, 250 msec stimulus of variable wavelength, flashed on a 1000 td white background yielded spectral sensitivity curves with th...

journal_title：Vision research

authors： Kuyk TK

更新日期：1982-01-01 00:00:00

abstract：:Electrophysiological recording demonstrated that visuo-tectal projections are topographically organised after optic nerve regeneration in aged Xenopus laevis. 3H-thymidine autoradiography confirmed previous reports [Taylor, Lack, & Easter, Eur. Journal of Neuroscience 1 (1989) 626-638] that cell division had already c...

journal_title：Vision research

authors： Beaver RS,Dunlop SA,Harman AM,Stirling RV,Easter SS,Roberts JD,Beazley LD

更新日期：2001-06-01 00:00:00

abstract：:Human motion perception is assumed to be functionally described by an array of bi-local detectors feeding later, higher order computational stages. Using this model as a guide, improvement of spatio-temporal displacement sensitivity by temporal integration (summation) was measured in human central vision using random ...

journal_title：Vision research

authors： Fredericksen RE,Verstraten FA,Van de Grind WA

更新日期：1994-02-01 00:00:00

abstract：:The association between perceived visual direction and retinal location has been considered to be specified at birth and unmodifiable. We found that small changes occurred in the visual direction associated with a peripheral retinal location when the amplitudes of saccadic eye movements to a target imaged at that loca...

journal_title：Vision research

authors： Moidell BG,Bedell HE

更新日期：1988-01-01 00:00:00

abstract：:The gaze of another modulates and shifts an observer's spatial attention toward this gaze direction. This phenomenon is termed joint attention. Although previous studies found joint attention was induced during a spatial working memory task, it remains an open question whether spatial working memory interferes with jo...

journal_title：Vision research

authors： Yokoyama T,Kato R,Inoue K,Takeda Y

更新日期：2019-01-01 00:00:00

abstract：:The anchoring theory of lightness perception (Gilchrist et al., Psychological Review 106 (1999) 795-834) has been described as one of the most successful approaches to lightness perception. Yet, not only does the original proposal contain serious gaps and inconsistencies, later expressions of the theory, which was nev...

journal_title：Vision research

authors： Maniatis LM

更新日期：2014-09-01 00:00:00

abstract：:Many visual attributes of a target stimulus are computed according to dynamic, non-retinotopic reference frames. For example, the motion trajectory of a reflector on a bicycle wheel is perceived as orbital, even though it is in fact cycloidal in retinal, as well as spatial coordinates. We cannot perceive the cycloidal...

journal_title：Vision research

authors： Noory B,Herzog MH,Ogmen H

更新日期：2015-08-01 00:00:00

abstract：:The flash-lag effect (FLE) is defined as an error in localization that consists of perceiving a flashed object to lag behind a moving one when both are presented in physical alignment. Previous studies have addressed the question if it is the predictability of the flash, or the moving object, that modulates the amount...

journal_title：Vision research

authors： López-Moliner J,Linares D

更新日期：2006-06-01 00:00:00

abstract：:The distributions of dopamine D1 and D2 receptors were studied in intact goldfish retina with in vitro autoradiography. Specific [3H]SCH 23390 binding (D1 receptors) was greatest over the outer plexiform layer (OPL)/horizontal cell bodies and less so over the inner nuclear and inner plexiform layers (IPL). Specific [3...

journal_title：Vision research

authors： Yazulla S,Lin ZS

更新日期：1995-09-01 00:00:00

abstract：:The optimal viewing position phenomenon discovered by (O'Regan, J. K., Lévy-Schoen, A., Pynte, J., Brugaillère, B. (1984). Convenient fixation location within isolated words of different length and structure. Journal of Experimental Psychology: Human Perception and performance. 10 (2), 250-257) is characterized by a m...

journal_title：Vision research

authors： Clark JJ,O'Regan JK

更新日期：1999-02-01 00:00:00

abstract：:Properties of presumed mechanisms controlling photoreceptor alignments are partially defined. A phototropic mechanism normally dominates alignment, but do modest changes in orientations occur with dark patching? Here, new photopic Stiles-Crawford (SCE-I) determinations were made before patching (pre-patch), just after...

journal_title：Vision research

authors： Kono M,Enoch JM,Strada E,Shih P,Srinivasan R,Lakshminarayanan V,Susilasate W,Graham A

更新日期：2001-01-01 00:00:00

abstract：:Since individuals who have lost an eye in early life rely on monocular information, one asked if they would better estimate the time to collision (TTC) with an approaching object based on the monocular cue [(θ/(dθ/dt), i.e. tau] than a control group using only monocular information. Estimates of TTC were m...

journal_title：Vision research

authors： Steeves JK,Gray R,Steinbach MJ,Regan D

更新日期：2000-01-01 00:00:00

abstract：:Vernier thresholds are known to be elevated when a target pair has opposite contrast polarity. Polarity reversal is used to assess the role of luminance and chromatic pathways in hyperacuity performance. Psychophysical hyperacuity thresholds were measured for pairs of gratings of various combinations of luminance (Lum...

journal_title：Vision research

authors： Sun H,Cooper B,Lee BB

更新日期：2012-03-01 00:00:00

abstract：:The aim of this study was twofold, first to determine the effect of field view size and second of illumination conditions on the selection of unique hue samples (UHs: R, Y, G and B) from two rotatable trays, each containing forty highly chromatic Natural Color System (NCS) samples, on one tray corresponding to 1.4° an...

journal_title：Vision research

authors： Shamey R,Zubair M,Cheema H

更新日期：2015-08-01 00:00:00

abstract：:In three experiments, the effects of irrelevant visual information on the time to initiate and to complete a simple movement of the hand in response to a visual signal were studied in patients with a diagnosis of Parkinson's disease, and in age-matched normal controls. Subjects gazed at the centre of a TV monitor and ...

journal_title：Vision research

authors： McDowell SA,Harris J

更新日期：1997-12-01 00:00:00

abstract：:A coordinated movement of the eyes and head in the head-unrestrained condition is often used to change orientation between targets. Under natural conditions, these gaze shifts are typically generated with the eyes roughly centered in the orbits. To achieve experimental control of eye and head positions, a miniature la...

journal_title：Vision research

authors： Gandhi NJ,Sparks DL

更新日期：2001-01-01 00:00:00

abstract：:Two alternative schemes have been proposed for coding the local direction of stimulus motion in the visual image. The "sequence discrimination" scheme (e.g. Barlow H.B. and Levick W. R., J. Physiol., Lond. 178, 477-504, 1965) uses sequential change in stimulus position over time to infer movement direction; the "spati...

journal_title：Vision research

authors： Mather G

更新日期：1984-01-01 00:00:00

abstract：:In Experiments 1-3, we monitored search performance as a function of target eccentricity under display durations that either allowed or precluded eye movements. The display was present either until observers responded, for 104 msec, or for 62 msec. In all three experiments an orientation asymmetry emerged: observers d...

journal_title：Vision research

authors： Carrasco M,McLean TL,Katz SM,Frieder KS

更新日期：1998-02-01 00:00:00

abstract：:We report here measurements of visual evoked potential (VEP) activity after induction of afterimages in human observers. Drifting gratings normally produce no measurable phase synchronized VEP. However, after an afterimage of a high contrast grating of the same orientation and spatial frequency of that of the drifting...

journal_title：Vision research

authors： Burr DC,Fiorentini A,Morrone MC

更新日期：1987-01-01 00:00:00

abstract：:Most laboratory visual search tasks involve many searches for the same target, while in the real world we typically change our target with each search (e.g. find the coffee cup, then the sugar). How quickly can the visual system be reconfigured to search for a new target? Here observers searched for targets specified ...

journal_title：Vision research

authors： Wolfe JM,Horowitz TS,Kenner N,Hyle M,Vasan N

更新日期：2004-06-01 00:00:00

abstract：:Explorative eye movements specifically target some parts of a scene while ignoring others. Here, we investigate how local image structure--defined by spatial frequency contrast--and informative image content--defined by higher order image statistics-are weighted for the selection of fixation points. We measured eye mo...

journal_title：Vision research

authors： Kayser C,Nielsen KJ,Logothetis NK

更新日期：2006-08-01 00:00:00

abstract：:For being a polarized neuron and having a sensory cilium, photoreceptors attract remarkable attention. This is due their highly polarized structure and active visual signal transduction cascades and for the enrichment of complex networks of proteins in the cilium. Structural and functional maintenance of the photorece...

journal_title：Vision research

authors： Yildiz O,Khanna H

更新日期：2012-12-15 00:00:00

abstract：:The response latency of horizontal cells in the carp retina was investigated by means of the stimulus-response crosscorrelation using a randomly modulated light of various wavelengths. R/G type cells produced two response components with some difference in latency; short-latency hyperpolarising response to green light...

journal_title：Vision research

authors： Yamada M,Shigematsu Y,Fuwa M

更新日期：1985-01-01 00:00:00

abstract：:This article describes a nonlinear model of neural processing in the vertebrate retina, comprising model photoreceptors, model push-pull bipolar cells, and model ganglion cells. Previous analyses and simulations have shown that with a choice of parameters that mimics beta cells, the model exhibits X-like linear spatia...

journal_title：Vision research

authors： Gaudiano P

更新日期：1994-07-01 00:00:00

abstract：:The attentional mechanisms in the brain responsible for fast pop-out search and slower difficult search have been shown to interact. Even if pop-out search is interrupted, by the addition of extra distractors to an initially simple search display, the partial computations calculated by the mechanisms responsible for p...

journal_title：Vision research

authors： Olds ES,Punambolam RJ

更新日期：2002-03-01 00:00:00

abstract：:The present study examined perceptual distortions of a vertical line before and after macular hole (MH) surgery in 25 eyes of 24 patients. Participants' perceptual reports of distortions were classified as solid, bent right/left, thinned at the center, or broken. The majority of patients (72%) reported symmetrical dis...

journal_title：Vision research

authors： Wittich W,Overbury O,Kapusta MA,Watanabe DH,Faubert J

更新日期：2006-11-01 00:00:00

abstract：:We investigated Werner's binocular depth-contrast effect. Subjects viewed stereograms consisting of a test pattern and an inducing pattern. The half-images of the inducing pattern were either horizontally scaled or sheared relative to each other. Subjects judged the (induced) perceived slant of the test pattern. We we...

journal_title：Vision research

authors： van Ee R,Erkelens CJ

更新日期：1996-08-01 00:00:00

abstract：:Patients with retinitis pigmentosa (RP) show delayed inner retinal responses as measured by the cone ERG response to a 30 Hz stimulus. To determine the extent to which this delay results from abnormalities of cone phototransduction, cone ERGs to single flashes were obtained from 21 patients with RP and a model of cone...

journal_title：Vision research

authors： Hood DC,Birch DG

更新日期：1996-06-01 00:00:00

abstract：:The squirrel monkey lacks anatomically demonstrable ocular dominance columns, and physiologically it has an ocular dominance distribution in V1 that is very different from that of macaques, with far fewer cells that strongly favor one eye over the other. We tested an alert squirrel monkey for physiological responses t...

journal_title：Vision research

authors： Livingstone MS,Nori S,Freeman DC,Hubel DH

更新日期：1995-02-01 00:00:00