Temporal frequency limits for stereoscopic apparent motion processes.

abstract：:How does the visual system represent the ensemble statistics of visual objects? This question has received intense interest in vision research, yet most studies have focused on the extraction of mean statistics rather than its dispersion. This study focuses on another aspect of ensemble statistics: the redundancy of t...

journal_title：Vision research

authors： Won BY,Jiang YV

更新日期：2013-01-15 00:00:00

abstract：:We examined the ability of human observers to detect three kinds of statistical structure in binary arrays: first-order statistics (luminance), local fourth-order statistics (isodipole textures), and long-range statistics (bilateral symmetry). Performance was closest to ideal on the luminance task and furthest from id...

journal_title：Vision research

authors： Victor JD,Conte MM

更新日期：2005-04-01 00:00:00

abstract：:While saccadic eye movements produce rapid shift of images of objects on the retina, the visual world is perceived as stationary (visual stability), but the precise mechanisms involved in such perception remain unclear. We investigated if visual stimuli existing before and/or after a saccade serve to preserve visual s...

journal_title：Vision research

authors： Honda H

更新日期：2006-10-01 00:00:00

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：: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：:The current study aims at analysing the suitability of the double-pass technique in measuring the accommodative response. A custom-built setup which allowed simultaneous double-pass and Hartmann-Shack measurements was used. Several metrics to assess the accommodative response were tested and compared. In order to vali...

journal_title：Vision research

authors： Aldaba M,Vilaseca M,Díaz-Doutón F,Arjona M,Pujol J

更新日期：2012-06-01 00:00:00

abstract：:The activity of transcription factors like AP-1 and Oct-1 is critical for the regulation of gene expression. Whereas Oct-1 mainly regulates the expression of housekeeping genes, AP-1 is often involved in cellular responses to external stimuli and plays an essential role in the regulation of light-induced apoptosis of ...

journal_title：Vision research

authors： Hafezi F,Marti A,Grimm C,Wenzel A,Remé CE

更新日期：1999-07-01 00:00:00

abstract：:Ring-billed gulls (Larus delawarensis) and gray gulls (Larus modestus) are two species active both by day and night. We have investigated the retinal adaptations that allow the diurnal and nocturnal behaviours of these two species. Electroretinograms and histological analyses show that both species have a duplex retin...

journal_title：Vision research

authors： Emond MP,McNeil R,Cabana T,Guerra CG,Lachapelle P

更新日期：2006-09-01 00:00:00

abstract：:A model of darkness induction based on a neural filling-in mechanism is proposed. The model borrows principles from both Land's Retinex theory and BCS/FCS filling-in model of Grossberg and colleagues. The main novel assumption of the induction model is that darkness filling-in signals, which originate at luminance bor...

journal_title：Vision research

authors： Rudd ME,Arrington KF

更新日期：2001-12-01 00:00:00

abstract：:A geometrical method of calculating retinal magnification factor at the limits of the retinal field, adjacent to the ora terminalis, is described. The method is applied to the eyes of 11 mammalian and avian species, using new anatomical measurements and data from the literature. In the human and monkey eye, magnificat...

journal_title：Vision research

authors： Holden AL,Hayes BP,Fitzke FW

更新日期：1987-01-01 00:00:00

abstract：:When a colour/orientation conjunction search display is immediately preceded by a display that shows either the colour or the orientation of each upcoming search item, search is faster after colour-preview than after orientation-preview. One explanation for this feature asymmetry is that colour has priority access to ...

journal_title：Vision research

authors： Olds ES,Graham TJ,Jones JA

更新日期：2009-05-01 00:00:00

abstract：:Recent investigations of the three-dimensional (3D) binocular eye positions in near vision have shown that a full characterization of vergence requires incorporation of its torsional component. The latter has a proportional relationship with horizontal vergence and elevation, causing the eyes to have intorsion in near...

journal_title：Vision research

authors： Minken AW,Van Gisbergen JA

更新日期：1996-03-01 00:00:00

abstract：:Large and small letter contrast sensitivity and visual acuity were assessed in 37 elderly eyes (mean VA -0.01 logMAR, Snellen 6/6) and their lens opacities were categorised and graded using the LOCS III system. Large letter contrast sensitivity was often not reduced in cataract from age-matched normal values and provi...

journal_title：Vision research

authors： Elliott DB,Situ P

更新日期：1998-06-01 00:00:00

abstract：:We characterize the dark-adapted photoresponses from mouse cones intact in the isolated retina, their virtually natural environment, by isolating pharmacologically the photoreceptor light responses from the electroretinogram (ERG). Due to the different photoresponse kinetics and sensitivity of rods and cones, the cone...

journal_title：Vision research

authors： Heikkinen H,Nymark S,Koskelainen A

更新日期：2008-01-01 00:00:00

abstract：:Steady-state pupil diameter was measured in darkness and over a 9 log unit range of Ganzfeld illumination in 20 normal adults, 28 normal infants, 59 adults with retinitis pigmentosa, and 30 children at risk for retinitis pigmentosa. Pupil threshold was defined as the retinal illuminance necessary to decrease pupil dia...

journal_title：Vision research

authors： Birch EE,Birch DG

更新日期：1987-01-01 00:00:00

abstract：:During free viewing visual search, observers often refixate the same locations several times before and after target detection is reported with a button press. We analyzed the rate of microsaccades in the sequence of refixations made during visual search and found two important components. One related to the visual co...

journal_title：Vision research

authors： Privitera CM,Carney T,Klein S,Aguilar M

更新日期：2014-02-01 00:00:00

abstract：:The mechanisms responsible for generating illusory contours are thought to fulfil an adaptive role in providing estimates of missing contour fragments generated by partial camouflage. One striking apparent counter-example to this view was described in Current Biology 21 (2011) 492-496, which showed that illusory conto...

journal_title：Vision research

authors： Anderson BL,Tan K,Marlow PJ

更新日期：2019-05-01 00:00:00

abstract：:If we look out of the window of a travelling train our eyes move rapidly back and forth (saccadic movement). With no attention to individual objects, gaze velocity is low but nystagmic frequency is high (stare nystagmus). If we are interested in individual objects, the angular velocity of gaze is high and the nystagmi...

journal_title：Vision research

authors： von Campenhausen M,Kirschfeld K

更新日期：1999-04-01 00:00:00

abstract：:We compared ocular and eye-head tracking responses to an illusion of diagonal motion produced when vertical movement of a small visual target was synchronized to horizontal movement of a background display. In response to sinusoidal movement, smooth ocular pursuit followed vertical target motion, with only a small hor...

journal_title：Vision research

authors： Zivotofsky AZ,Averbuch-Heller L,Thomas CW,Das VE,Discenna AO,Leigh RJ

更新日期：1995-11-01 00:00:00

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：:Feature-directed attention has been recently studied in various psychophysical, electrophysiological, and imaging studies. Convincing evidence has been obtained for its global effectiveness, but there is a debate about the processing fate of non-attended target features. A number of studies demonstrated feature-direct...

journal_title：Vision research

authors： Wegener D,Ehn F,Aurich MK,Galashan FO,Kreiter AK

更新日期：2008-12-01 00:00:00

abstract：:The spatial vision of two adult galagos (Galago crassicaudatus) was assessed using a two choice discrimination task to determine their contrast sensitivity. Both contrast sensitivity functions exhibited low and high spatial frequency attenuation with the peak sensitivity at 1%. For one animal, the peak occurred at 0.5...

journal_title：Vision research

authors： Langston A,Casagrande VA,Fox R

更新日期：1986-01-01 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：:For rapidly translating targets, vernier thresholds correspond to millisecond asynchronies between targets. The 'temporal hypothesis' is that these thresholds reflect the limiting sensitivity of asynchrony detectors. Previous studies showed that temporal thresholds are generally higher than vernier thresholds, but fai...

journal_title：Vision research

authors： Mechler F,Victor JD

更新日期：2000-01-01 00:00:00

abstract：:We examined the performance of human observers to identify three-dimensional (3D) shape from motion induced by exploratory head movements. Subjects categorized 3D quadratic surfaces with randomly chosen shape but with a fixed amount of curvature in one of eight shape categories. Human observers had their best performa...

journal_title：Vision research

authors： van Damme WJ,van de Grind WA

更新日期：1993-07-01 00:00:00

abstract：:To successfully navigate throughout the world, observers must rapidly recover depth information. One depth cue that is especially important for a moving observer is motion parallax. To perceive unambiguous depth from motion parallax, the visual system must integrate information from two different proximal signals, ret...

journal_title：Vision research

authors： Holmin J,Nawrot M

更新日期：2017-11-01 00:00:00

abstract：:The properties of small monochromatic targets as accommodative stimuli are not well understood. We used a dynamic optometer to record accommodation responses to monochromatic disc targets (1.0-27.3 min arc) and to a Maltese cross. Accommodation responded adequately to points as small as 13.6 min arc. The response to t...

journal_title：Vision research

authors： Kruger PB,Stark LR,Nguyen HN

更新日期：2004-11-01 00:00:00

abstract：:The spectral sensitivity of the extracellularly-recorded photoresponse of isolated rods of the tiger salamander, Ambystoma tigrinum, was compared to the absorptance spectrum. Both measurements were made with the same optical system on the same portion of each cell to avoid errors that could occur when the two kinds of...

journal_title：Vision research

authors： Cornwall MC,MacNichol EF Jr,Fein A

更新日期：1984-01-01 00:00:00

abstract：:Fifty-three different 3D shapes were defined by sequences of 2D views (frames) of dots on a rotating 3D surface. (1) Subjects' accuracy of shape identifications dropped from over 90% to less than 10% when either the polarity of the stimulus dots was alternated from light-on-gray to dark-on-gray on successive frames or...

journal_title：Vision research

authors： Dosher BA,Landy MS,Sperling G

更新日期：1989-01-01 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