Visual acuity versus letter contrast sensitivity in early cataract.

abstract：:Previous research has suggested that whereas some techniques show that subjects with a specific reading disability (SRD) have greater visible persistence than controls, a temporal integration of form technique does not. It has been suggested that the failure of the temporal integration task to show a difference result...

journal_title：Vision research

authors： Hogben JH,Rodino IS,Clark CD,Pratt C

更新日期：1995-07-01 00:00:00

abstract：:The mechanisms underlying the parsing of a spatial distribution of velocity vectors into two adjacent (spatially segregated) or overlapping (transparent) motion surfaces were examined using random dot kinematograms. Parsing might occur using either of two principles. Surfaces might be defined on the basis of similarit...

journal_title：Vision research

authors： Smith AT,Curran W

更新日期：2000-01-01 00:00:00

abstract：:Previous studies have shown that attention to a particular stimulus feature, such as direction of motion or color, enhances neuronal responses to unattended stimuli sharing that feature. We studied this effect psychophysically by measuring the strength of the motion aftereffect (MAE) induced by an unattended stimulus ...

journal_title：Vision research

authors： Boynton GM,Ciaramitaro VM,Arman AC

更新日期：2006-09-01 00:00:00

abstract：PURPOSE:The mouse eye has potential to become an important model for studies on the genetic control of eye growth and myopia. However, no data are published on the development of its optical properties. We developed a paraxial schematic model of the growing eye for the most common laboratory mouse strain, the C57BL/6 m...

journal_title：Vision research

authors： Schmucker C,Schaeffel F

更新日期：2004-01-01 00:00:00

abstract：:A system of regular, radial ridges, spaced approx. 250 nm apart, is reported from the outer corneal surface of the eye of the tiny moth Leucoptera coffeella. Antireflective coatings in larger insects with flatter facets often take the form of corneal nipples. However, evidence is presented that in an insect whose eyes...

journal_title：Vision research

authors： Meyer-Rochow VB,Stringer IA

更新日期：1993-12-01 00:00:00

abstract：:In an attempt to uncover the properties of the psychophysical spatial mechanisms which optimally respond to the vernier offset between two abutting lines, we investigated the effects of one-dimensional band-limited spatial noise masks superimposed with the target, on vernier thresholds. Unidirectional vernier threshol...

journal_title：Vision research

authors： Waugh SJ,Levi DM,Carney T

更新日期：1993-08-01 00:00:00

abstract：:We present a novel binocular stimulus without conventional disparity cues whose presence and depth are revealed by sequential monocular stimulation (delay > or = 80 ms). Vertical white lines were occluded as they passed behind an otherwise camouflaged black rectangular target. The location (and instant) of the occlusi...

journal_title：Vision research

authors： Brooks KR,Gillam BJ

更新日期：2006-03-01 00:00:00

abstract：:Camouflage is the primary defense in cuttlefish. The rich repertoire of their body patterns can be categorized into three types: uniform, mottle, and disruptive. Several recent studies have characterized spatial features of substrates responsible for eliciting these body patterns on natural and artificial backgrounds....

journal_title：Vision research

authors： Chiao CC,Chubb C,Buresch K,Siemann L,Hanlon RT

更新日期：2009-06-01 00:00:00

abstract：:We are quantifying the distribution of photoreceptors and ganglion cells in human retina with the goal of establishing a reliable anatomical database which may be compared to information about visual function. We required a representation of retinal cell distributions which facilitated collection, analysis, and displa...

journal_title：Vision research

authors： Curcio CA,Sloan KR,Meyers D

更新日期：1989-01-01 00:00:00

abstract：:A computational model is proposed to account for the adaptive properties of the fly motion system. The response properties of motion-sensitive neurons in the fly are modelled using an underdamped adaptive scheme to adjust the time constants of delay filters in an array of Reichardt detectors. It is shown that the incr...

journal_title：Vision research

authors： Clifford CW,Langley K

更新日期：1996-08-01 00:00:00

abstract：:In hyperacuity, as in many other tasks, performance improves with practice. To better understand the underlying mechanisms, we measured thresholds of 41 inexperienced observers for the discrimination of vernier displacements. In spite of considerable inter-individual differences, mean thresholds decreased monotonicall...

journal_title：Vision research

authors： Fahle M,Edelman S

更新日期：1993-02-01 00:00:00

abstract：:The role of the perceptual organization of the visual display on eye movement control was examined in two experiments using a task where a two-saccade sequence was directed toward either a single elongated object or three separate shorter objects. In the first experiment, we examined the consequences for the second sa...

journal_title：Vision research

authors： Vergilino-Perez D,Findlay JM

更新日期：2006-07-01 00:00:00

abstract：:Retinal motion can modulate visual sensitivity. For instance, low contrast drifting waveforms (targets) can be easier to detect when abutting the leading edges of movement in adjacent high contrast waveforms (inducers), rather than the trailing edges. This target-inducer interaction is contingent on the adjacent wavef...

journal_title：Vision research

authors： Arnold DH,Marinovic W,Whitney D

更新日期：2014-05-01 00:00:00

abstract：:Prior work suggests that internal features contribute more than external features to face processing. Whether this asymmetry is also true of the mental representations of faces is not known. We used face adaptation to determine whether the internal and external features of faces contribute differently to the represent...

journal_title：Vision research

authors： Hills C,Romano K,Davies-Thompson J,Barton JJ

更新日期：2014-07-01 00:00:00

abstract：:It has been suggested that schizophrenia is associated with a magnocellular deficit. This would predict a loss of contrast sensitivity at low spatial and/or at high temporal frequencies. We here review research that tested contrast sensitivity in individuals with schizophrenia. We find that the results of this researc...

journal_title：Vision research

authors： Skottun BC,Skoyles JR

更新日期：2007-10-01 00:00:00

abstract：:There is an ongoing debate on whether binocular rivalry involves competition among monocular cells or binocular cells. We investigated this issue psychophysically with two specially designed test stimuli. One test stimulus contained monocular motion signals but greatly reduced binocular motion signals, while the other...

journal_title：Vision research

authors： Meng X,Chen Y,Qian N

更新日期：2004-01-01 00:00:00

abstract：:According to a top-down explanation of subliminal oculomotor capture, only subliminal distractors with a contrast polarity matching that of the searched-for targets should capture attention. For instance, when looking for white targets only subliminal white but not black distractors should capture attention. In contra...

journal_title：Vision research

authors： Weichselbaum H,Fuchs I,Ansorge U

更新日期：2014-07-01 00:00:00

abstract：:Although pictorial illusions have been used to study perception for a long time, the effects of such displays on the visual control of actions has recently been the matter of some debate. Evidence from a re-analysis of an earlier study is presented that suggests pictorial displays can exert opposite effects on percept...

journal_title：Vision research

authors： Haffenden AM,Goodale MA

更新日期：2000-01-01 00:00:00

abstract：:Some studies have reported deficits in amblyopia for global form and motion integration, whereas other studies have shown global integration of form and motion information to be normal in amblyopia. Here, we attempt to resolve this discrepancy by showing that amblyopes only exhibit selective performance deficits on gl...

journal_title：Vision research

authors： Mansouri B,Hess RF

更新日期：2006-11-01 00:00:00

abstract：:The electroretinogram (ERG) vs perfusion pressure relation was studied in anesthetized rabbits during mechanically induced changes in mean arterial pressure (MAP). After 1 hr of dark adaptation, ERGs were obtained at perfusion pressures from 10 to 95 mmHg with each pressure held for 30-60 sec, and at three levels from...

journal_title：Vision research

authors： Harrison JM,Kiel JW,Smith S

更新日期：1997-09-01 00:00:00

abstract：:A number of experiments were conducted to investigate the interaction of the ON and OFF pathways in the processing of global-motion signals. The stimulus employed was a variant of that used by Newsome and Pare [(1988) Journal of Neuroscience, 8, 2201-2211] in which a small subset of dots move in a common (global-motio...

journal_title：Vision research

authors： Edwards M,Badcock DR

更新日期：1994-11-01 00:00:00

abstract：:A rotating Pulfrich effect is described and analysed in relation to the Fertsch-Pulfrich latency difference theory. Although some of the predictions conflicted with observations described by Pulfrich [Naturwissenschaften 10, 553-564 (1922)], they were confirmed by experiment, and led to a simple and sensitive method o...

journal_title：Vision research

authors： Nickalls RW

更新日期：1986-01-01 00:00:00

abstract：:The perceived blur of drifting sinusoidal gratings was compared to that of static, blurred "square wave" gratings before and after adaptation to a missing fundamental (MF) pattern. The results indicate that the perceived blur of a drifting sine grating is inversely related to its drift speed. However, after adaptation...

journal_title：Vision research

authors： Hammett ST,Bex PJ

更新日期：1996-09-01 00:00:00

abstract：:DL-2-amino-4-phosphonobutyric acid (APB) reduces the sensitivity of ON- and OFF-responses in goldfish retina, although the ON-responses are reduced significantly more than the OFF-responses. This paper describes the effects of APB on behavioral sensitivity of goldfish to spatial sinusoidal gratings. Fish were classica...

journal_title：Vision research

authors： Bilotta J,Demarco PJ Jr,Powers MK

更新日期：1995-01-01 00:00:00

abstract：:Texture information about surface shape can be decomposed into three constituents: compression, density and scaling. Blake, Bülthoff and Sheinberg's (1993, Vision Research, 33, 1723-1737) Ideal Observer theory of slant from texture predicts that the relative contribution of compression and density to the percept of pl...

journal_title：Vision research

authors： Buckley D,Frisby JP,Blake A

更新日期：1996-04-01 00:00:00

abstract：:In most visual search experiments in the laboratory, objects are presented on an isolated, blank background. In most real world search tasks, however, the background is continuous and can be complex. In six experiments, we examine the ability of the visual system to separate search items from a background. The results...

journal_title：Vision research

authors： Wolfe JM,Oliva A,Horowitz TS,Butcher SJ,Bompas A

更新日期：2002-12-01 00:00:00

abstract：:Neurons in the vertebrate retina are interconnected by a complex network of chemical and electrical synapses which make it difficult to study the intrinsic biochemical and biophysical properties of individual cells. During the past decade, enzymatic methods have been developed for dissociating adult retinas into viabl...

journal_title：Vision research

authors： Lam DM,Ayoub GS

更新日期：1983-01-01 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：:Prior studies using brief stimulus sequences revealed "opponent shape aftereffects", indicative of direct opponent coding of global shape attributes such as aspect ratio, skew, taper, curvature, and convexity (perhaps in IT). Further, aftereffects from overlapped opponent pairs of adaptor shapes (e.g., concave and con...

journal_title：Vision research

authors： Suzuki S

更新日期：2003-03-01 00:00:00

abstract：:When a horizontal bar is presented after a single dot is shown at one of its ends, an illusory motion is seen which has been dubbed "motion induction" in the literature. The phenomenon has been attributed to a facilitation process which asymmetrically modulates the inputs to motion detectors, for instance by some sort...

journal_title：Vision research

authors： Zanker JM

更新日期：1997-07-01 00:00:00