Illusory volumes in human stereo perception.

abstract：:When the method of constant stimuli is used to measure heterochromatic brightness matches, the resulting matches can be strongly biased toward the center of the range of test luminances used. In the present paper, we investigate the source of this centering bias. The stimuli were 2 degrees red squares presented in a g...

journal_title：Vision research

authors： Pereverzeva M,Teller DY

更新日期：2005-11-01 00:00:00

abstract：:Adaptation is a fundamental property of perceptual processing. In low-level vision, it can calibrate perception to current inputs, increasing coding efficiency and enhancing discrimination around the adapted level. Adaptation also occurs in high-level vision, as illustrated by face aftereffects. However, the functiona...

journal_title：Vision research

authors： Rhodes G,Watson TL,Jeffery L,Clifford CW

更新日期：2010-05-12 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：:Investigations of binocular visual direction have concentrated mainly on stationary objects. Eye positions were generally not measured and binocular fixation was assumed to be perfect. During the viewing of stationary objects, vergence errors are not negligible but small. During the viewing of moving objects, however,...

journal_title：Vision research

authors： Erkelens CJ,Van EE R

更新日期：1997-07-01 00:00:00

abstract：:What are the visual causes, rather than mere correlates, of attentional selection and how do they compare to each other during natural vision? To address these questions, we first strung together semantically unrelated dynamic scenes into MTV-style video clips, and performed eye tracking experiments with human observe...

journal_title：Vision research

authors： Carmi R,Itti L

更新日期：2006-12-01 00:00:00

abstract：:The sensitivity of X- and Y-cells in the dorsal lateral geniculate nucleus of the cat to small, temporally modulated displacements of grating stimuli was measured at 0.175, 0.25, 0.50, 1.00, and 2.00 c/deg. For every cell, two threshold measures were determined: first, a contrast threshold with a counterphase grating ...

journal_title：Vision research

authors： Moss CF,Lehmkuhle S

更新日期：1986-01-01 00:00:00

abstract：:A masking paradigm was employed to measure the spatial frequency selectivity of channels underlying human stereopsis. Observers viewed spatially filtered (0.4 octave bandwidth) random-dot stereograms in which a disparate bar appeared in either the top or bottom half of the display; superimposed on one RDS half-image w...

journal_title：Vision research

authors： Yang Y,Blake R

更新日期：1991-01-01 00:00:00

abstract：:The binocular fusion of two center-surround configurations, where one center is brighter, the other darker than the common surround, leads to a strong impression of luster in the central patch. Without reversed contrast polarities of the center patches, this impression is much weaker or even absent. However, we observ...

journal_title：Vision research

authors： Wendt G,Faul F

更新日期：2020-11-01 00:00:00

abstract：:The topography of visual evoked potentials (VEP) is dependent on occipital lobe morphology. Using magnetic resonance imaging we examine the sulcal pattern (the calcarine and parieto-occipital sulci), and assess the size of the cuneus and the asymmetry of the occipital lobes, computed separately for its ventral and dor...

journal_title：Vision research

authors： Myslobodsky MS,Glicksohn J,Coppola R,Weinberger DR

更新日期：1991-01-01 00:00:00

abstract：:Dynamic random-dot stereograms (RDS) were used to study cortical neuronal mechanisms related to visual persistence in nine subjects. Electric brain potential components evoked by stereoscopic stimuli were compared to those evoked by conventional checkerboard stimuli with contrast borders. In a pattern-onset/offset pre...

journal_title：Vision research

authors： Skrandies W

更新日期：1987-01-01 00:00:00

abstract：:What you see depends not only on where you are looking but also on where you will look next. The pre-saccadic attention shift is an automatic enhancement of visual sensitivity at the target of the next saccade. We investigated whether and how perceptual factors independent of the oculomotor plan modulate pre-saccadic ...

journal_title：Vision research

authors： White AL,Rolfs M,Carrasco M

更新日期：2013-06-07 00:00:00

abstract：:The flash-lag effect (FLE) is defined as an error in localization that consists of perceiving a flashed object to lag behind a moving one when both are presented in physical alignment. Previous studies have addressed the question if it is the predictability of the flash, or the moving object, that modulates the amount...

journal_title：Vision research

authors： López-Moliner J,Linares D

更新日期：2006-06-01 00:00:00

abstract：:We investigated the manner in which the outputs of the three postreceptoral mechanisms (red-green, blue-yellow and luminance) combine to determine contrast threshold. We used a subthreshold summation paradigm to test whether the combination of the postreceptoral mechanism outputs could be described by a probability su...

journal_title：Vision research

authors： Mullen KT,Sankeralli MJ

更新日期：1999-02-01 00:00:00

abstract：:Increment-threshold spectral sensitivity functions were taken foveally and at four other retinal locations with different sized test stimuli. For the fovea and parafovea at 4 degrees, a 1 degree, 250 msec stimulus of variable wavelength, flashed on a 1000 td white background yielded spectral sensitivity curves with th...

journal_title：Vision research

authors： Kuyk TK

更新日期：1982-01-01 00:00:00

abstract：:Human subjects perceive two crossing bars, one in front of the other, when shown a cross with disparity added to its horizontal limbs, and they also perceive neon-color spreading when shown a stereoscopic Redies-Spillmann figure. It has thus been hypothesized that the human visual system follows the principle of gener...

journal_title：Vision research

authors： Uka T,Tanaka H,Kato M,Fujita I

更新日期：1999-07-01 00:00:00

abstract：:One of the ultimate goals of vision research is to understand how some elements are grouped together and differentiated from others to form object representations in a complex visual scene. There exists an extensive literature on this grouping/segmentation problem, but most of the studies have used un-recognizable sti...

journal_title：Vision research

authors： Nygård GE,Looy TV,Wagemans J

更新日期：2009-10-01 00:00:00

abstract：:The ability to judge the separation between two target lines deteriorates as the base separation increases. Several lines of evidence suggest that this may be due to larger base separations being processed by mechanisms that cover larger areas and which have a greater associated positional uncertainty as a consequence...

journal_title：Vision research

authors： Badcock DR,Sullivan K

更新日期：1994-05-01 00:00:00

abstract：:The colors of Benham's Top [pattern induced flicker colors (PIFCs)] were matched with color stimuli provided by a computer aided color mixer. Subjects viewed a series of specifically modified black and white disks and matched the resulting subjective color with a comparison field containing the color generated by addi...

journal_title：Vision research

authors： Schramme J

更新日期：1992-11-01 00:00:00

abstract：:We present a model for recovering the direction of heading of an observer who is moving relative to a scene that may contain self-moving objects. The model builds upon an algorithm proposed by Rieger and Lawton, based on earlier work by Longuet-Higgins and Prazdny. The algorithm uses velocity differences computed in r...

journal_title：Vision research

authors： Hildreth EC

更新日期：1992-06-01 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：: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：:How does nearby motion affect the perceived speed of a target region? When a central drifting Gabor patch is surrounded by translating noise, its speed can be misperceived over a fourfold range. Typically, when a surround moves in the same direction, perceived centre speed is reduced; for opposite-direction surrounds ...

journal_title：Vision research

authors： Baker DH,Graf EW

更新日期：2010-01-01 00:00:00

abstract：:The apparent motion of a discretely displaced complex waveform with a periodic contrast modulation or "beat" of frequency f and sinusoidal components of frequencies 3f and 4f was examined at various interstimulus intervals (ISIs). At short ISIs perception of motion of both the beat and an aliased component of the wave...

journal_title：Vision research

authors： Hammett ST,Ledgeway T,Smith AT

更新日期：1993-05-01 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：:Colored afterimages were obtained after the eye was exposed to the adapting field consisting of the figure-ground configuration of colored lights with the same hue and different saturation. When a colored patch was surrounded by a more saturated field, the color of the afterimage was similar to that of the previous pa...

journal_title：Vision research

authors： Takahashi S,Ejima Y,Akita M

更新日期：1988-01-01 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：: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：:The effects of aspartate (Asp) on the ERG and on neuronal, glial, and K+ responses were monitored continuously in the superfused mudpuppy eyecup. Asp induced a time-dependent sequence of events which may be divided into three stages: Stage 1, initially, light-evoked responses throughout the retina are depressed; Stage...

journal_title：Vision research

authors： Shimazaki H,Karwoski CJ,Proenza LM

更新日期：1984-01-01 00:00:00

abstract：:The distribution of endothelial nitric oxide synthase immunoreactivity (eNOS-IR) was investigated in the retinas of all phylogenetic vertebrate classes by using a monoclonal eNOS antibody. Confocal light microscopy showed immunoreactive labeling in Müller cells of fish, frog, salamander, turtle, chicken, rat, ground s...

journal_title：Vision research

authors： Haverkamp S,Kolb H,Cuenca N

更新日期：1999-07-01 00:00:00

abstract：:Human motion perception is assumed to be functionally described by an array of bi-local detectors feeding later, higher order computational stages. Using this model as a guide, improvement of spatio-temporal displacement sensitivity by temporal integration (summation) was measured in human central vision using random ...

journal_title：Vision research

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

更新日期：1994-02-01 00:00:00