Probing intermediate stages of shape processing.

abstract：:Perceptual learning involves modification of cortical processes so that transfer to new task variants depends on neuronal representation overlap. Neuron selectivity varies with cortical level, so that the degree of transfer should depend on training-induced modification level. We ask how different can stimuli be, how ...

journal_title：Journal of vision

authors： Pavlovskaya M,Hochstein S

更新日期：2011-01-07 00:00:00

abstract：:Visual short-term memory (VSTM) has been described as being limited by the number of discrete visual objects, the aggregate quantity of information across multiple visual objects, or some combination of the two. Many recent studies examining these capacity limitations have shown that increasing the number of items in ...

journal_title：Journal of vision

authors： Lilburn SD,Smith PL,Sewell DK

更新日期：2019-01-02 00:00:00

abstract：:Stimuli appearing in the surround of the classical receptive field (CRF) can reduce neuronal firing and perceived contrast of a preferred stimulus in the CRF, a phenomenon referred to as surround suppression. Suppression is greatest when the surrounding stimulus has the same orientation and spatial frequency (SF) as t...

journal_title：Journal of vision

authors： Flevaris AV,Murray SO

更新日期：2015-01-28 00:00:00

abstract：:We investigated the role of gaze in encoding of object landmarks in navigation. Gaze behavior was measured while participants learnt to navigate in a virtual large-scale environment in order to understand the sampling strategies subjects use to select visual information during navigation. The results showed a consiste...

journal_title：Journal of vision

authors： Hamid SN,Stankiewicz B,Hayhoe M

更新日期：2010-10-22 00:00:00

abstract：:The dynamics of attentional deployment before saccade execution was studied with a dual-task paradigm. Observers made a horizontal saccade whose direction was indicated by a symbolic precue and had to discriminate the orientation of a Gabor patch displayed at different delays after the precue (but before saccade onset...

journal_title：Journal of vision

authors： Castet E,Jeanjean S,Montagnini A,Laugier D,Masson GS

更新日期：2006-03-03 00:00:00

abstract：:Using identical stimuli and methods, we assessed the effects of flankers on three different tasks, orientation discrimination, contrast discrimination, and detection, in central, peripheral, and amblyopic vision. The goal was to understand the factors that limit performance of a task in the presence of flankers in eac...

journal_title：Journal of vision

authors： Levi DM,Carney T

更新日期：2011-01-10 00:00:00

abstract：:Contrary to other tasks (free viewing, recognition, visual search), participants often fail to recognize repetition of trials in multiple object tracking (MOT). This study examines the intra- and interindividual variability of eye movements in repeated MOT trials along with the adherence of eye movements to the previo...

journal_title：Journal of vision

authors： Lukavský J

更新日期：2013-06-13 00:00:00

abstract：:Humans can estimate and encode numerosity over a large range, from very few items to several hundreds. Two distinct mechanisms have been proposed: subitizing, for numbers up to four and estimation for larger numerosities. We have recently extended this idea by suggesting that for very densely packed arrays, when items...

journal_title：Journal of vision

authors： Pomè A,Anobile G,Cicchini GM,Burr DC

更新日期：2019-06-03 00:00:00

abstract：:The static envelope of a Gabor patch with a moving sinusoidal carrier appears shifted in the direction of the carrier motion (De Valois & De Valois, 1991). This phenomenon is called motion-induced position shift. Although several motion-processing stages, ranging from low- to high-level processes, may contribute to po...

journal_title：Journal of vision

authors： Hisakata R,Hayashi D,Murakami I

更新日期：2016-10-01 00:00:00

abstract：:The purpose of this study was to measure the transverse chromatic aberration (TCA) across the visual field of the human eye objectively. TCA was measured at horizontal and vertical field angles out to ±15° from foveal fixation in the right eye of four subjects. Interleaved retinal images were taken at wavelengths 543 ...

journal_title：Journal of vision

authors： Winter S,Sabesan R,Tiruveedhula P,Privitera C,Unsbo P,Lundström L,Roorda A

更新日期：2016-11-01 00:00:00

abstract：:Sensory neurons represent stimulus information with sequences of action potentials that differ across repeated measurements. This variability limits the information that can be extracted from momentary observations of a neuron's response. It is often assumed that integrating responses over time mitigates this limitati...

journal_title：Journal of vision

authors： Goris RLT,Ziemba CM,Movshon JA,Simoncelli EP

更新日期：2018-08-01 00:00:00

abstract：:Culture shapes how people gather information from the visual world. We recently showed that Western observers focus on the eyes region during face recognition, whereas Eastern observers fixate predominantly the center of faces, suggesting a more effective use of extrafoveal information for Easterners compared to Weste...

journal_title：Journal of vision

authors： Miellet S,Zhou X,He L,Rodger H,Caldara R

更新日期：2010-06-01 00:00:00

abstract：:Recent psychophysical studies have shown that perceived timings of events can be dissociated from their physical temporal relationship. In the flash-lag effect (FLE), a flash presented at the same spatiotemporal position as a continuously moving stimulus is perceived to lag behind the moving stimulus. In the present s...

journal_title：Journal of vision

authors： Kanai R,Carlson TA,Verstraten FA,Walsh V

更新日期：2009-07-09 00:00:00

abstract：:When the visual system analyzes distributed patterns of sensory inputs, what features of those distributions does it use? It has been previously demonstrated that higher-order statistical moments of luminance distributions influence perception of static surfaces and textures. Here, we tested whether the brain also rep...

journal_title：Journal of vision

authors： Waskom ML,Asfour J,Kiani R

更新日期：2018-06-01 00:00:00

abstract：:In 1986, Paul Whittle investigated the ability to discriminate between the luminance of two small patches viewed upon a uniform background. In 1992, Paul Whittle asked subjects to manipulate the luminance of a number of patches on a uniform background until their brightness appeared to vary from black to white with ev...

journal_title：Journal of vision

authors： Kane D,Bertalmío M

更新日期：2019-01-02 00:00:00

abstract：:Pupil size changes with light. For this reason, researchers studying the effect of attention, contextual processing, and arousal on the pupillary response have matched the mean luminance of their stimuli across conditions to eliminate the contribution of differences in light levels. Here, we argue that the match of me...

journal_title：Journal of vision

authors： Gao J,Ko A,Yabe Y,Goodale MA,Chen J

更新日期：2020-08-03 00:00:00

abstract：:Visual motion serves as a cue for high-level percepts. The present study reports novel modulation of animacy perception through synchronous motion. A target dot moving along a random trajectory was presented. The trajectory was generated based on a variant of 1/f noise; hence, the dot could be perceived as animate. Pa...

journal_title：Journal of vision

authors： Takahashi K,Watanabe K

更新日期：2015-01-01 00:00:00

abstract：:The visual system utilizes environmental features to direct gaze efficiently when locating objects. While previous research has isolated various features' contributions to gaze guidance, these studies generally used sparse displays and did not investigate how features facilitated search as a function of their location...

journal_title：Journal of vision

authors： Nuthmann A,Malcolm GL

更新日期：2016-01-01 00:00:00

abstract：:Scene viewing is used to study attentional selection in complex but still controlled environments. One of the main observations on eye movements during scene viewing is the inhomogeneous distribution of fixation locations: While some parts of an image are fixated by almost all observers and are inspected repeatedly by...

journal_title：Journal of vision

authors： Trukenbrod HA,Barthelmé S,Wichmann FA,Engbert R

更新日期：2019-06-03 00:00:00

abstract：:Previous studies have shown independent attentional selection of targets in the left and right visual hemifields during attentional tracking (Alvarez & Cavanagh, 2005) but not during a visual search (Luck, Hillyard, Mangun, & Gazzaniga, 1989). Here we tested whether multifocal spatial attention is the critical process...

journal_title：Journal of vision

authors： Alvarez GA,Gill J,Cavanagh P

更新日期：2012-05-25 00:00:00

abstract：:Deep convolutional neural networks (CNNs) trained on visual objects have shown intriguing ability to predict some response properties of visual cortical neurons. However, the factors (e.g., if the model is trained or not, receptive field size) and computations (e.g., convolution, rectification, pooling, normalization)...

journal_title：Journal of vision

authors： Laskar MNU,Sanchez Giraldo LG,Schwartz O

更新日期：2020-07-01 00:00:00

abstract：:Signal detection theory (SDT) asserts that sensory analysis is limited only by noise, and not by the number of stimuli analysed. To test this claim, we measured the accuracy of visual search for a single tilted element (the target) among 7 horizontal elements (distractors) using several different exposure durations, e...

journal_title：Journal of vision

authors： Solomon JA,Morgan MJ

更新日期：2001-01-01 00:00:00

abstract：:Previous studies have reported that concurrent manual tracking enhances smooth pursuit eye movements only when tracking a self-driven or a predictable moving target. Here, we used a control-theoretic approach to examine whether concurrent manual tracking enhances smooth pursuit of an unpredictable moving target. In th...

journal_title：Journal of vision

authors： Niehorster DC,Siu WW,Li L

更新日期：2015-01-01 00:00:00

abstract：:This work examines how context may influence the detection of changes in flickering scenes. Each scene contained two changes that were matched for low-level visual salience. One of the changes was of high interest to the meaning of the scene, and the other was of lower interest. High-interest changes were more readily...

journal_title：Journal of vision

authors： Kelley TA,Chun MM,Chua KP

更新日期：2003-01-01 00:00:00

abstract：:Blur is an important attribute of human spatial vision, and sensitivity to blur has been the subject of considerable experimental research and theoretical modeling. Often, these models have invoked specialized concepts or mechanisms, such as intrinsic blur, multiple spatial frequency channels, or blur estimation units...

journal_title：Journal of vision

authors： Watson AB,Ahumada AJ

更新日期：2011-09-19 00:00:00

abstract：:For the linear discrimination of two stimuli in white Gaussian noise in the presence of internal noise, a method is described for estimating linear classification weights from the sum of noise images segregated by stimulus and response. The recommended method for combining the two response images for the same stimulus...

journal_title：Journal of vision

authors： Ahumada AJ Jr

更新日期：2002-01-01 00:00:00

abstract：:Recent studies suggest that the active observer combines optic flow information with extra-retinal signals resulting from head motion. Such a combination allows, in principle, a correct discrimination of the presence or absence of surface rotation. In Experiments 1 and 2, observers were asked to perform such discrimin...

journal_title：Journal of vision

authors： Fantoni C,Caudek C,Domini F

更新日期：2010-05-01 00:00:00

abstract：:Top-down guidance of visual attention has classically been thought to operate in a feature-specific manner. However, recent studies have shown that top-down visual attention can also be guided by information about target-nontarget feature relations (e.g., larger, redder, brighter). Here we recommend a minimal set of c...

journal_title：Journal of vision

authors： Harris AM,Remington RW,Becker SI

更新日期：2013-05-06 00:00:00

abstract：:Chromatic vision starts at the retinal photoreceptors but photoreceptors are themselves color-blind, responding only to their effective quantal catch and not to the wavelength of the caught photon per se. Mitchell and Rushton (1971) termed this phenomenon the univariance concept, and it is widely used in designing sil...

journal_title：Journal of vision

authors： Kamar S,Howlett MHC,Kamermans M

更新日期：2019-05-01 00:00:00

abstract：:Previous contrast discrimination experiments have shown that luminance contrast is summed across ocular (T. S. Meese, M. A. Georgeson, & D. H. Baker, 2006) and spatial (T. S. Meese & R. J. Summers, 2007) dimensions at threshold and above. However, is this process sufficiently general to operate across the conjunction ...

journal_title：Journal of vision

authors： Meese TS,Baker DH

更新日期：2011-01-27 00:00:00