Time course influences transfer of visual perceptual learning across spatial location.

abstract：:The processing of letters within strings is challenging for beginning readers. Letter identification is affected by visual similarity, loss of information with eccentricity and interference from nearby letters. In contrast, visual attention enhances letter identification. We here explored whether visual attention reso...

journal_title：Vision research

authors： Valdois S,Roulin JL,Line Bosse M

更新日期：2019-12-01 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：:The red-green (RG) detection mechanism was revealed by measuring threshold detection contours in the L and M cone contrast plane for sine-wave test gratings of 0.8-6 c deg-1 on bright adapting fields of yellow or red. The slope of the RG detection contours was unity, indicating that the L and M contrast signals contri...

journal_title：Vision research

authors： Stromeyer CF 3rd,Gowdy PD,Chaparro A,Kronauer RE

更新日期：1999-09-01 00:00:00

abstract：:The precision to locate individual features in depth can often be improved by integrating information over space. However, this integration can sometimes be extremely detrimental, as for example in the case of the Westheimer-McKee phenomenon where features are grouped to form an object. We replicate here the known los...

journal_title：Vision research

authors： Mamassian P,Zannoli M

更新日期：2020-09-01 00:00:00

abstract：:Reduced global motion sensitivity, relative to global static form sensitivity, has been found in children with many neurodevelopmental disorders, leading to the "dorsal stream vulnerability" hypothesis (Braddick et al., 2003). Individual differences in typically developing children's global motion thresholds have been...

journal_title：Vision research

authors： Braddick O,Atkinson J,Akshoomoff N,Newman E,Curley LB,Gonzalez MR,Brown T,Dale A,Jernigan T

更新日期：2017-12-01 00:00:00

abstract：:The effect of competing non-target stimuli (distractors) presented together with a target for saccades was investigated with special emphasis on saccadic reaction time. Using the gap task (fixation point offset preceding target onset by 200 msec) high numbers of express saccades were obtained from four human subjects....

journal_title：Vision research

authors： Weber H,Fischer B

更新日期：1994-07-01 00:00:00

abstract：:The perceived color of an object depends on the chromaticity of its immediate background. But color appearance is also influenced by remote chromaticities. To quantify these influences, the effects of remote color fields on the appearance of a fixated 2 degrees test field were measured using a forced-choice method. Ch...

journal_title：Vision research

authors： Wachtler T,Albright TD,Sejnowski TJ

更新日期：2001-05-01 00:00:00

abstract：:If the spatial-frequency of sinusoidal signals in a contrast-detection experiment varies randomly from trial to trial, then performance is decreased compared with that in a situation where it remains constant. This spatial-frequency uncertainty effect can more or less be compensated by presenting informative cues shor...

journal_title：Vision research

authors： Hübner R

更新日期：1996-11-01 00:00:00

abstract：:Mach bands are illusory bright and dark bands seen where a luminance plateau meets a ramp, as in half-shadows or penumbras. A tremendous amount of work has been devoted to studying the psychophysics and the potential underlying neural circuitry concerning this phenomenon. A number of theoretical models also have been ...

journal_title：Vision research

authors： Pessoa L

更新日期：1996-10-01 00:00:00

abstract：:The properties of impulse responses of blowfly photoreceptors in light and dark adaptation were studied with brief (30 mu sec) white light flashes applied with different repetition frequencies, thereby producing a range of interstimulus periods (ISPs) from 200 msec to 100 sec. The amplitude of the impulse response as ...

journal_title：Vision research

authors： Weckström M

更新日期：1989-01-01 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：:Accommodative loss represents the fastest human biological decrement. Why? To examine this, the shape of the eye-lens during accommodation or its relaxation is analysed with special reference to age-related changes. The capsule is viewed as a force transmitter: the distribution of forces along centripetal capsular arc...

journal_title：Vision research

authors： Weale RA

更新日期：2000-01-01 00:00:00

abstract：:According to the Oppel-Kundt illusion, a filled space appears larger than an empty one. In the present research we studied how textural characteristics affect the perceived size of two-dimensional patterns. We investigated the perceived extension of square textures by manipulating spatial frequency and filling microel...

journal_title：Vision research

authors： Giora E,Gori S

更新日期：2010-11-23 00:00:00

abstract：:Following optic nerve crush in the adult lizard Ctenophorus ornatus, most retinal ganglion cells regrow their axons into visual brain centres: however, the regenerated projections lack retinotopic order and the animals are blind via the experimental eye. Here we have used 3H-thymidine autoradiography to demonstrate th...

journal_title：Vision research

authors： Beazley LD,Tennant M,Stewart TM,Anstee SD

更新日期：1998-03-01 00:00:00

abstract：:Photic responsiveness of cells in the medial bank of the lateral suprasylvian cortex (Clare-Bishop area) was studied using a three-dimensional visual stimulator that reproduced two visual cues (motion disparity and change in size) for perception of three-dimensional motion of a visual stimulus. About one third of them...

journal_title：Vision research

authors： Toyama K,Komatsu Y,Kasai H,Fujii K,Umetani K

更新日期：1985-01-01 00:00:00

abstract：:We sought to determine whether the cross-correlation between signals and masks consisting of Gaussian modulated grating patterns is consistent with observed psychophysical masking effects. Our experimental results support this relationship, and suggest further specifications for the determinants of pattern masking eff...

journal_title：Vision research

authors： Caelli T,Moraglia G

更新日期：1987-01-01 00:00:00

abstract：:The retinae of two species of teleosts, the rippled blenny Istiblennius edentulus and the blue tusk fish Choerodon albigena are examined in wholemount. The retinal topography of Nissl-stained cells within the ganglion cell layer in each species reveals a temporal (4.32 x 10(4) cells per mm2) and a nasal (3.83 x 10(4) ...

journal_title：Vision research

authors： Collin SP

更新日期：1989-01-01 00:00:00

abstract：:A rhodopsin P347L transgenic (Tg) rabbit, a model of retinitis pigmentosa, has been generated in our laboratory. The purpose of this study was to determine the properties of focal areas of the retina in this rabbit model during the course of retinal degeneration. To accomplish this, we recorded focal ERGs from wild-ty...

journal_title：Vision research

authors： Ueno S,Koyasu T,Kominami T,Sakai T,Kondo M,Yasuda S,Terasaki H

更新日期：2013-10-18 00:00:00

abstract：:Effects of glutamate and its agonists on horizontal cells appeared diversely when studied in turtle eyecup preparations. Consistent results were obtained when the isolated retina preparations were used. Not only kainate and quisqualate but also N-methyl-D-aspartate (NMDA) caused a sustained depolarization and light-ev...

journal_title：Vision research

authors： Miyachi E,Murakami M

更新日期：1989-01-01 00:00:00

abstract：:Sand deserts are common biotopes on the earth's surface. Some specialized vertebrate species have colonized these ecological habitats by living buried in the sand. Among these so called psammophilic species are the Scincidae sand dune living species Scincus scincus and Eumeces schneideri. These two skinks share a rela...

journal_title：Vision research

authors： Canei J,Burtea C,Nonclercq D

更新日期：2020-04-28 00:00:00

abstract：:In preview search when an observer ignores an early appearing set of distractors, there can subsequently be impeded detection of new targets that share the colour of this preview. This "negative carry-over effect" has been attributed to an active inhibitory process targeted against the old items and inadvertently thei...

journal_title：Vision research

authors： Dent K,Humphreys GW,He X,Braithwaite JJ

更新日期：2014-04-01 00:00:00

abstract：:A change in the basic-level class when viewing a sequence of two objects produces a large release from adaptation in LOC compared to when the images are identical. Is this due to a change in semantics or shape? In an fMRI-adaptation experiment, subjects viewed a sequence of two objects and judged whether the stimuli w...

journal_title：Vision research

authors： Kim JG,Biederman I,Lescroart MD,Hayworth KJ

更新日期：2009-09-01 00:00:00

abstract：:In the classic double-step paradigm, subjects are required to make a saccade to a visual target that is briefly presented at one location and then shifted to a new location before the subject has responded. The saccades in this situation are "reflexive" in that they are made in response to the appearance of the target...

journal_title：Vision research

authors： Sheliga BM,Brown VJ,Miles FA

更新日期：2002-07-01 00:00:00

abstract：:Extra-retinal information about eye velocity is thought to play an important role in compensating the retinal motion experienced during an eye movement. Evidently this compensation process is prone to error, since stimulus properties such as contrast and spatial frequency have marked effect on perceived motion with re...

journal_title：Vision research

authors： Sumnall JH,Freeman TC,Snowden RJ

更新日期：2003-07-01 00:00:00

abstract：:Peripheral vision serves to direct our attention and fixation to objects of interest. This requires that the visual system be capable of accurately localizing peripherally presented targets having different spatial structures. The question we address is "to what extent does stimulus spatial structure influence the pre...

journal_title：Vision research

authors： Levi DM,Tripathy SP

更新日期：1996-12-01 00:00:00

abstract：:We investigated temporal aspects of stereoscopically perceived slant produced by the following transformations: horizontal scale, horizontal shear, vertical scale, vertical shear, divergence and rotation, between the half-images of a stereogram. Six subjects viewed large field stimuli (70 degrees diameter) both in the...

journal_title：Vision research

authors： van Ee R,Erkelens CJ

更新日期：1998-12-01 00:00:00

abstract：:During dark adaptation after full field, greater than or equal to 90% bleaches recovery of sensitivity and regeneration of rhodopsin were studied using electroretinographic and pupillographic techniques in both 10-week-old infants and adults. The courses of scotopic sensitivity recovery and rhodopsin regeneration of i...

journal_title：Vision research

authors： Fulton AB,Hansen RM

更新日期：1987-01-01 00:00:00

abstract：:Perceptual learning is often interpreted as learning of fine stimulus templates. However, we have proposed that perceptual learning is more than template learning, in that more abstract statistical rules may have been learned, so that learning can transfer to stimuli at different precisions. Here we provide new eviden...

journal_title：Vision research

authors： Xie XY,Yu C

更新日期：2019-03-01 00:00:00

abstract：:Western blot analysis of 100,000 g supernatant of rat retina using a polyclonal anti-Ca2+/ calmodulin-dependent protein kinase IV (CaM-kinase IV) antibody revealed an immunoreactive mass of 35 kDa, termed reticalmin. Lower amount of a isoform of CaM-kinase IV was also expressed in rat retina. Reticalmin did not react ...

journal_title：Vision research

authors： Hirooka K,Tokuda M,Tsumura T,Ahmed BY,Itano T,Matsui H,Konishi R,Hasegawa E,Okuno S,Kitani T,Fujisawa H,Hatase O

更新日期：1997-08-01 00:00:00

abstract：:Marine mammals have lost the ability to express S-cone opsin, and possess only one type of M/L-cone in addition to numerous rods. As they are cone monochromats they should be color blind. However, early behavioral experiments with fur seals and sea lions indicated discrimination ability between many shades of grey and...

journal_title：Vision research

authors： Oppermann D,Schramme J,Neumeyer C

更新日期：2016-08-01 00:00:00