Crowding between first- and second-order letters in amblyopia.

abstract：:We study the "color weight" for a number of rather different paradigms. In well researched heterochromatic photometry methods we find that the "weights" determined by settings of naive observers are closely determined by the CIE luminance functional. This is very different for tasks that involve mid- and high-level as...

journal_title：Vision research

authors： Koenderink J,van Doorn A,Gegenfurtner K

更新日期：2018-10-01 00:00:00

abstract：:A generally accepted notion in binocular vision is that we see the world as if viewed by a single eye, the cyclopean eye. A consequence of seeing the world from a single point in space is that the outlines of occluding and occluded surfaces have the same shape. We designed stereograms in which subjects aligned binocul...

journal_title：Vision research

authors： Erkelens CJ,Muijs AJ,van Ee R

更新日期：1996-07-01 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 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：:(-)[3H]Noradrenaline and [3H]clonidine bind in a saturable fashion to membrane preparations of bovine retinas. The dissociation constant for (-)[3H]noradrenaline is about 26 nM and for [3H]clonidine approximately 11.7 nM. The degree of (-)[3H]noradrenaline and [3H]clonidine binding associated with subcellular fraction...

journal_title：Vision research

authors： Osborne NN

更新日期：1982-01-01 00:00:00

abstract：:As impaired S-cone function has been reported psychophysically this study assessed S-cone function during high altitude exposure using electroretinography (ERG) and investigated a possible association with severity of acute mountain sickness (AMS). This work is related to the Tübingen High Altitude Ophthalmology (THAO...

journal_title：Vision research

authors： Schatz A,Dominik Fischer M,Schommer K,Zrenner E,Bartz-Schmidt KU,Gekeler F,Willmann G

更新日期：2014-04-01 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：:Static visual stimulus presented behind a moving pattern inhibits vection. On the other hand, the same static stimulus facilitates vection if it is located in front of the moving pattern. In this study, the effects of depth, eccentricity and size of the additional static stimulus on inhibition and facilitation of hori...

journal_title：Vision research

authors： Nakamura S

更新日期：2006-07-01 00:00:00

abstract：:Luminance contrast discrimination was measured in 14 patients with retinitis pigmentosa (RP) and 14 control observers with normal vision, using steady-pedestal and pulsed-pedestal paradigms [Pokorny, J., & Smith, V. C. (1997). Psychophysical signatures associated with magnocellular and parvocellular pathway contrast g...

journal_title：Vision research

authors： Alexander KR,Pokorny J,Smith VC,Fishman GA,Barnes CS

更新日期：2001-03-01 00:00:00

abstract：:Increment thresholds were measured over a range of adapting illuminances using a modified automated static perimeter. The data were fitted to a threshold versus intensity model (logT - logT(0) + log((A + A(0))/A(0))n) and the values logT(0) and logA(0) estimated. The effect of eccentricity and age on logT(0) and logA(...

journal_title：Vision research

authors： Herse P

更新日期：2005-02-01 00:00:00

abstract：:Motion aftereffects (MAE) to drifting gratings were measured with a cancellation technique. For a constant adapting grating, MAE cancellation velocity increased linearly with visual field eccentricity. The slope of the function was dependent upon adapting temporal frequency. MAE velocity was independent of spatial fre...

journal_title：Vision research

authors： Wright MJ,Johnston A

更新日期：1985-01-01 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：:The effect of perspective transformation on transfer of face training was investigated in a yes/no recognition task using face stimuli with 42 degrees, 10 degrees, or no perspective convergence. A strong dependence of recognition performance on the magnitude of perspective transformation was found, with large perspect...

journal_title：Vision research

authors： Liu CH,Chaudhuri A

更新日期：2003-10-01 00:00:00

abstract：:Motion perception influences perceived position. It has been shown that first-order (luminance defined) motion shifts perceived position across a wide range of spatial and temporal frequencies. On the other hand, second-order (contrast defined) motion shifts perceived position over a narrow range of temporal frequenci...

journal_title：Vision research

authors： Pavan A,Mather G

更新日期：2008-09-01 00:00:00

abstract：:Using the human WERI-Rb1 cell line as a model system, we performed a genome-wide search for retinal target genes of thyroid hormone (TH) via expression microarray analysis followed by quantitative real-time RT-PCR verification. We identified 12 novel retinal targets of TH, including 10 up-regulated genes (OPN1MW, OPN1...

journal_title：Vision research

authors： Liu Y,Fu L,Chen DG,Deeb SS

更新日期：2007-08-01 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：:Two moving random-pixel arrays (RPAs) were presented simultaneously in the same target field. These RPAs are perceived as two superimposed transparent moving sheets. Although two directions are perceived simultaneously during stimulus presentation, the movement aftereffect (MAE) is unidirectional. The visual system av...

journal_title：Vision research

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

更新日期：1994-02-01 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：:In a series of experiments we compared orientation discrimination performance for Gabor stimuli in which the stimulus profile was either matched to the receptive field profile of single V1 simple cells ('simple'), or in which the carrier and envelope orientations were different ('tigertails'). In the first Experiment,...

journal_title：Vision research

authors： Morgan MJ,Mason AJ,Baldassi S

更新日期：2000-01-01 00:00:00

abstract：:Trout lens external shape and internal refractive index gradient structure were measured and used to construct an optical lens model that predicts by ray tracing the average longitudinal spherical and chromatic aberration, focal length and image quality. The nearly spherical shape of the lens was measured from photogr...

journal_title：Vision research

authors： Jagger WS,Sands PJ

更新日期：1996-09-01 00:00:00

abstract：:Existing models for the generation of saccades predict fixed trajectories between start and landing positions of saccades. Experimental data show that saccades have rather variable trajectories. The objective of the present research is to quantify the variability in trajectories of binocular saccades and to test in ho...

journal_title：Vision research

authors： Erkelens AJ,Sloot OB

更新日期：1995-12-01 00:00:00

abstract：:Adaptation to the simple visual displacement of prisms was compared to that for refractive lenses, which have a varied prismatic effect. Subjects were made myopic using contact lenses, then corrected using spectacle lenses. The effect on the perceived direction of a randomly located target was assessed from pointing b...

journal_title：Vision research

authors： Tuan KM,Jones R

更新日期：1997-07-01 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：:To study the ability of humans to read subtle changes in facial expression, we applied reverse correlation technique to reveal visual features that mediate understanding of emotion expressed by the face. Surprising findings were that (1) the noise added to a test face image had profound effect on the facial expression...

journal_title：Vision research

authors： Kontsevich LL,Tyler CW

更新日期：2004-01-01 00:00:00

abstract：:In Experiment 1 we investigated the independent and combined effects of horizontal OKN of stationary edges and occlusion of the central retina. For a display 60 degrees wide moving at 30 degrees/sec a symmetrically placed pair of vertical nonoccluding bars suppressed OKN when near the center of the display but had no ...

journal_title：Vision research

authors： Murasugi CM,Howard IP,Ohmi M

更新日期：1986-01-01 00:00:00

abstract：:Movements aimed towards objects occasionally have to be adjusted when the object moves. These online adjustments can be very rapid, occurring in as little as 100ms. More is known about the latency and neural basis of online control of movements to visual than to auditory target objects. We examined the latency of onli...

journal_title：Vision research

authors： Holmes NP,Dakwar AR

更新日期：2015-12-01 00:00:00

abstract：:Which coordinate system do we use to track moving objects? In a previous study using smooth pursuit eye movements, we argued that targets are tracked in both retinal (retinotopic) and scene-centered (allocentric) coordinates (Howe, Pinto, & Horowitz, 2010). However, multiple object tracking typically also elicits sacc...

journal_title：Vision research

authors： Howe PD,Drew T,Pinto Y,Horowitz TS

更新日期：2011-03-02 00:00:00

abstract：:The wave-front aberration of the human eye was measured for eight subjects using a spatially resolved refractometer (a psychophysical ray-tracing test). The eyes were undilated and presented with accommodative stimuli varying from 0 to -6 diopters. Monochromatic wave-front aberrations tend to increase with increasing ...

journal_title：Vision research

authors： He JC,Burns SA,Marcos S

更新日期：2000-01-01 00:00:00

abstract：:Deuteranomalous trichromacy is the most common form of inherited color-vision deficiency. A modern description of its cause is a single abnormality: the normal middle-wave cone photopigment (M) is replaced by a shifted middle-wave pigment (M) that is shared by all deuteranomalous trichromats. This explanation, however...

journal_title：Vision research

authors： Shevell SK,He JC

更新日期：1997-05-01 00:00:00

abstract：:Foveal pathway visual function was assessed in 11 patients having tumours extending into the suprasellar region but without evidence of visual impairment as assessed by visual acuity and Bjerrum screen campimetry. Psychophysical and routine visual evoked potential (VEP) measurements were obtained from the eye ipsilate...

journal_title：Vision research

authors： Gutowski NJ,Heron JR,Scase MO

更新日期：1997-05-01 00:00:00