Reduction of all-trans-retinal limits regeneration of visual pigment in mice.

abstract：:We investigated the interactions between flicker thresholds and luminance pedestals using threshold versus contrast (TvC) and method of constant stimuli paradigms. High amplitude luminance pedestals were found to elevate flicker thresholds, but low amplitude luminance pedestals were unable to reduce flicker thresholds...

journal_title：Vision research

authors： Anderson AJ,Vingrys AJ

更新日期：2000-01-01 00:00:00

abstract：:We have used surface-based atlases of the cerebral cortex to analyze the functional organization of visual cortex in humans and macaque monkeys. The macaque atlas contains multiple partitioning schemes for visual cortex, including a probabilistic atlas of visual areas derived from a recent architectonic study, plus su...

journal_title：Vision research

authors： Van Essen DC,Lewis JW,Drury HA,Hadjikhani N,Tootell RB,Bakircioglu M,Miller MI

更新日期：2001-01-01 00:00:00

abstract：:To decouple interocular suppression and binocular summation we varied the relative phase of mask and target in a 2IFC contrast-masking paradigm. In Experiment I, dichoptic mask gratings had the same orientation and spatial frequency as the target. For in-phase masking, suppression was strong (a log-log slope of approx...

journal_title：Vision research

authors： Baker DH,Meese TS

更新日期：2007-11-01 00:00:00

abstract：:Some aspects of attentional processing are known to decline with normal aging. To understand how age affects the attentional control of perceptual stability, we investigated age-related changes in voluntarily controlled perceptual rivalry. Durations of the dominant percept, produced by an ambiguous Rubin vase-faces fi...

journal_title：Vision research

authors： Aydin S,Strang NC,Manahilov V

更新日期：2013-01-25 00:00:00

abstract：:We present a remarkably simple illusion that manifests whenever a certain class of flat static patterns are moved across our peripheral visual field. A relative motion is perceived in a direction perpendicular to the true motion. Translatory, looming, and rotational movements of the head or the pattern can all elicit ...

journal_title：Vision research

authors： Pinna B,Brelstaff GJ

更新日期：2000-01-01 00:00:00

abstract：:We have examined the ability of observers to parse bimodal local-motion distributions into two global motion surfaces, either overlapping (yielding transparent motion) or spatially segregated (yielding a motion boundary). The stimuli were random dot kinematograms in which the direction of motion of each dot was drawn ...

journal_title：Vision research

authors： Smith AT,Curran W,Braddick OJ

更新日期：1999-03-01 00:00:00

abstract：:The gap effect refers to a reduction in the latency of saccades to peripherally appearing targets when the fixation point disappears a short time before target appearance. The effect has been attributed to a number of potential mechanisms that function to assist in the maintenance of fixation. One such mechanism, atte...

journal_title：Vision research

authors： Pratt J,Lajonchere CM,Abrams RA

更新日期：2006-08-01 00:00:00

abstract：:Based on a model of transverse chromatic aberration (TCA) of the eye and perceptual effects previously discussed by the same author, it was predicted that colour induced binocular depth perception (chromostereopsis) is possible from images containing red or blue along with achromatic information (grey and black); that...

journal_title：Vision research

authors： Faubert J

更新日期：1995-11-01 00:00:00

abstract：:This study compared frequency-of-seeing curves for a line displacement test in glaucoma patients and normals. Probit analysis of the frequency-of-seeing curves provided the motion thresholds and the slopes of the frequency-of-seeing curves, represented by the interquartile range. The thresholds and interquartile range...

journal_title：Vision research

authors： Westcott MC,Fitzke FW,Crabb DP,Hitchings RA

更新日期：1999-02-01 00:00:00

abstract：:How we attend to and search for objects in the real world is influenced by a host of low-level and higher-level factors whose interactions are poorly understood. The vast majority of studies approach this issue by experimentally controlling one or two factors in isolation, often under conditions with limited ecologica...

journal_title：Vision research

authors： Kovach CK,Adolphs R

更新日期：2015-11-01 00:00:00

abstract：:Although color-opponent neurons appear to subserve color vision, precisely how these cells encode hue is still not clear. Single-unit, extracellular recordings from the rainbow trout optic tectum were made in order to examine the possible role of action potential timing in coding chromatic stimuli. We found that color...

journal_title：Vision research

authors： McDonald CG,Hawryshyn CW

更新日期：1999-08-01 00:00:00

abstract：:In this review we discuss evidence from psychophysical, electrophysiological, and neuroimaging studies that demonstrates the updating of remembered visual space in a reference frame that is centred on the eye. We then extend these findings by discussing recent work from our lab. Specifically, we address eye-centred up...

journal_title：Vision research

authors： Thompson AA,Henriques DY

更新日期：2011-04-22 00:00:00

abstract：:We have measured corneal and total astigmatism on 161 eyes of 90 normal infants and young children aged 2 months to 5 years using the techniques of photorefraction and photokeratometry. Both the mean corneal and mean total astigmatism were found to decrease with increasing age. We found large and significant correlati...

journal_title：Vision research

authors： Howland HC,Sayles N

更新日期：1985-01-01 00:00:00

abstract：:Objects are usually segregated from ground by several visual dimensions. We studied texture segregation in checkerboards defined by gradients in spatial frequency, orientation or both frequency and orientation, using Gabor-filtered noise patterns. Saliency was measured electrophysiologically using the visual evoked po...

journal_title：Vision research

authors： Bach M,Schmitt C,Quenzer T,Meigen T,Fahle M

更新日期：2000-01-01 00:00:00

abstract：:We use a difficult shape identification task to analyze how humans extract 3D surface structure from dynamic 2D stimuli--the kinetic depth effect (KDE). Stimuli composed of luminous tokens moving on a less luminous background yield accurate 3D shape identification regardless of the particular token used (either dots, ...

journal_title：Vision research

authors： Landy MS,Dosher BA,Sperling G,Perkins ME

更新日期：1991-01-01 00:00:00

abstract：:A vertical grating appears tilted when surrounded by a tilted inducer grating: the tilt illusion. We investigated the inter-ocular transfer of the tilt illusion for gratings modulated along parallel or orthogonal vectors in a L-M and L+M+S cone contrast space. We found that the monocular component of the tilt illusion...

journal_title：Vision research

authors： Forte JD,Clifford CW

更新日期：2005-09-01 00:00:00

abstract：:The predominance of rivalrous targets is affected by surrounding context when stimuli rival in orientation, motion or color. This study investigated the influence of chromatic context on binocular color rivalry. The predominance of rivalrous chromatic targets was measured in various surrounding contexts. The first exp...

journal_title：Vision research

authors： Hong SW,Shevell SK

更新日期：2008-03-01 00:00:00

abstract：:Data on the simple reaction time to motion onset presented in Ball and Sekuler [Psychol. Rev. 87, 435-469 (1980)] and Tynan and Sekuler [Vision Res. 20, 709-715 (1982)] are re-analysed on the basis of local dispersion model of motion detectability. According to this model the detectability at the moment t is determine...

journal_title：Vision research

authors： Allik J,Dzhafarov EN

更新日期：1984-01-01 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：:With strict fixation, a small uniform target of medium contrast, placed at 10 deg eccentricity, faded much faster when presented on a dynamic random noise background than on either a static random noise background or a uniform background of the same luminance. Time to first disappearance was between 10 and 16 sec when...

journal_title：Vision research

authors： Spillmann L,Kurtenbach A

更新日期：1992-10-01 00:00:00

abstract：:Current concepts of action and perception emphasise a dissociation between conscious visual recognition and visual action control. These models do not expect an effect of the recognisable identity of an object on the kinematic parameterisation of grasping movements under binocular viewing conditions without pre-test l...

journal_title：Vision research

authors： Borchers S,Himmelbach M

更新日期：2012-08-15 00:00:00

abstract：:Using a staircase method, the tilt aftereffect (TAE) was measured with test flashes of durations ranging from 10 to 600 msec. The TAE is largest with brief duration test stimuli and reaches an asymptotic value at a test flash duration of 200-300 msec. A series of control experiments rule out a variety of explanations ...

journal_title：Vision research

authors： Wolfe JM

更新日期：1984-01-01 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 studied direction discrimination for lines moving obliquely relative to their orientation. Manipulating contrast, length and duration of motion, we found systematic errors in direction discrimination at low contrast, long length and/or short durations. These errors can be accounted for by a competition between ambi...

journal_title：Vision research

authors： Lorenceau J,Shiffrar M,Wells N,Castet E

更新日期：1993-06-01 00:00:00

abstract：:The present study provides new clues about visual processes underlying the human pupillary responses evoked by achromatic spatial patterns. The pupillary responses can be modeled as a combination of two processes, a temporally transient process which saturates with increasing contrast and a temporally sustained proces...

journal_title：Vision research

authors： Young RS,Kennish J

更新日期：1993-11-01 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：:Current theories of second-order motion perception postulate that such motion is detected by either a high-level mechanism which computes the temporal correspondences between "features" extracted from the image, or low-level motion mechanisms which operate on a nonlinear, neural transformation of the luminance profile...

journal_title：Vision research

authors： Ledgeway T,Smith AT

更新日期：1994-10-01 00:00:00

abstract：:Previous studies of peripheral vision have shown that detection acuity is superior to resolution acuity for gratings over a range of contrasts, which is attributed to different limiting mechanisms (contrast insufficiency and neural undersampling) for the two tasks. To extend the analysis to letters in a way that avoid...

journal_title：Vision research

authors： Demirel S,Anderson RS,Dakin SC,Thibos LN

更新日期：2012-04-15 00:00:00

abstract：:Dopaminergic and indoleamine accumulating neurons can be demonstrated both in the light and the electron microscopes. Considerable differences have been found between different animal species. There are two types of dopaminergic neurons, the interamacrine cells and the interplexiform cells. The interamacrine cells con...

journal_title：Vision research

authors： Ehinger B

更新日期：1983-01-01 00:00:00

abstract：:Gratings that differ in orientation by as much as 62.5 deg from that of a signal grating raise the signal's threshold by nearly a log unit. The spatial-frequency tuning of the masking effect reaches a maximum slightly below the spatial frequency of the maskers but far from that of any quadratic distortion product. Fur...

journal_title：Vision research

authors： Derrington AM,Henning GB

更新日期：1989-01-01 00:00:00