Effects of visual short-term memory load and attentional demand on the contrast response function.

abstract：:The magnitudes of spike responses of area 17 (striate cortex, area V1) neurons to stimulation of their classical receptive fields were reduced (suppressed) when the stimuli extended into the silent surround regions. We found that when optimally oriented sine-wave drifting grating patches extended into the distant part...

journal_title：Journal of vision

authors： Wang C,Bardy C,Huang JY,FitzGibbon T,Dreher B

更新日期：2009-01-16 00:00:00

abstract：:The multifocal visual evoked potential (mfVEP) is largely generated in V1. To relate the electrical activity recorded from humans to recordings from single cells in nonhuman primate (V1) cortex, contrast-response functions for the human mfVEP were compared to predictions from a model of V1 activity (D. J. Heeger, A. C...

journal_title：Journal of vision

authors： Hood DC,Ghadiali Q,Zhang JC,Graham NV,Wolfson SS,Zhang X

更新日期：2006-04-24 00:00:00

abstract：:Recent experiments have established that monocular areas arising due to occlusion of one object by another contribute to stereoscopic depth perception. It has been suggested that the primary role of monocular occlusions is to define depth discontinuities and object boundaries in depth. Here we use a carefully designed...

journal_title：Journal of vision

authors： Tsirlin I,Wilcox LM,Allison RS

更新日期：2010-06-01 00:00:00

abstract：:Path integration refers to the ability to integrate self-motion information to estimate one's current position and orientation relative to the origin. To investigate the effect of active selection in path integration, we used a virtual homing task in which participants traveled along hallways and attempted to directly...

journal_title：Journal of vision

authors： Wan X,Wang RF,Crowell JA

更新日期：2010-09-27 00:00:00

abstract：:Visual search is slowed for cast shadows lit from above, as compared to the same search items inverted and so not interpreted as shadows (R. A. Rensink & P. Cavanagh, 2004). The underlying mechanisms for such impaired shadow processing are still not understood. Here we investigated the processing levels at which this ...

journal_title：Journal of vision

authors： Porter G,Tales A,Leonards U

更新日期：2010-03-29 00:00:00

abstract：:Although visual systems are optimized to deal with the natural visual environment, our understanding of human motion perception is in large part based on the use of artificial stimuli. Here, we assessed observers' ability to estimate the direction of translating natural images and fractals by having them adjust the or...

journal_title：Journal of vision

authors： Dakin SC,Apthorp D,Alais D

更新日期：2010-09-03 00:00:00

abstract：:We examined whether motion blur accompanying apparent motion (AM) affects the shape of a stimulus presented in the motion path. In a two-alternative forced-choice procedure, observers judged the shape of a Gaussian test stimulus flashed in the path of motion, relative to a reference stimulus, which was a circular Gaus...

journal_title：Journal of vision

authors： Khuu SK,Phu J,Khambiye S

更新日期：2010-11-24 00:00:00

abstract：:First described during the 18th century, the cause of night myopia remains a controversial topic. Whereas several explanations have been suggested in the literature, particularly related with accommodation or chromatic shift in scotopic light conditions, no definitive explanation for its aetiology has been provided. W...

journal_title：Journal of vision

authors： López-Gil N,Peixoto-de-Matos SC,Thibos LN,González-Méijome JM

更新日期：2012-01-01 00:00:00

abstract：:Experimental data on the accuracy and frequency of saccades are incorporated into a model of the visual world and eye movements to determine the spatial distribution of visual objects on the retina. Visual scenes are represented as sequences of discrete small objects whose positions are initially uniformly distributed...

journal_title：Journal of vision

authors： Lewis A,Garcia R,Zhaoping L

更新日期：2003-12-29 00:00:00

abstract：:Heterochromatic flicker photometry (HFP), minimum motion (MM), and minimally distinct border (MDB) settings have often been used to determine equiluminance, a relative intensity setting for two chromaticities that, in theory, eliminates the responses of a luminance or achromatic psychophysical mechanism. These setting...

journal_title：Journal of vision

authors： He J,Taveras Cruz Y,Eskew RT Jr

更新日期：2020-04-09 00:00:00

abstract：:The magnitude and precision of stereoscopic depth between two probes is often determined by the disparity each has to a common background. If stereoscopic slant of the background is underestimated, a bias is introduced in the PSE of the probes (G. Mitchison & G. Westheimer, 1984). Using random dot stimuli, we show her...

journal_title：Journal of vision

authors： Gillam BJ,Sedgwick HA,Marlow P

更新日期：2011-05-10 00:00:00

abstract：:In four experiments, we examined the hypothesis that a presaccadic extrafoveal preview of an object normally affects subsequent postsaccadic foveal processing of the object. On each trial, viewers inspected an array of three objects and were instructed to remember one object characteristic (in-depth orientation, image...

journal_title：Journal of vision

authors： Van Eccelpoel C,Germeys F,De Graef P,Verfaillie K

更新日期：2008-12-30 00:00:00

abstract：:To cope with the continuously incoming stream of input, the visual system has to group information across space and time. Usually, spatial and temporal grouping are investigated separately. However, recent findings revealed that these two grouping mechanisms strongly interact and should therefore be studied together r...

journal_title：Journal of vision

authors： Hermens F,Scharnowski F,Herzog MH

更新日期：2010-07-01 00:00:00

abstract：:Understanding the current status and historical trends of gender representation within a research field is an important component of fostering a diverse and inclusive scientific community. Here, we report on the gender representation of a large sample of the vision science research community--the attendees of the Annu...

journal_title：Journal of vision

authors： Cooper EA,Radonjic A

更新日期：2016-01-01 00:00:00

abstract：:Our ability to process numerical and temporal information is an evolutionary skill thought to originate from a common magnitude system. In line with a common magnitude system, we have previously shown that adaptation to duration alters numerosity perception. Here, we investigate two hypotheses on how duration influenc...

journal_title：Journal of vision

authors： Tsouli A,van der Smagt MJ,Dumoulin SO,Pas SFT

更新日期：2019-06-03 00:00:00

abstract：:This study compared the effects of age on the perception of translational, radial, and rotational global motion patterns. Motion coherence thresholds were measured for judging the direction of each motion type as a function of contrast (visibility) and temporal sampling rate in young and elderly participants. Coherenc...

journal_title：Journal of vision

authors： Allen HA,Hutchinson CV,Ledgeway T,Gayle P

更新日期：2010-08-17 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：:In complex scenes, the light absorbed and re-emitted by one surface can serve as a source of illumination for a second. We examine whether observers systematically discount this secondary illumination when estimating surface color. We asked six naïve observers to make achromatic settings of a small test patch adjacent...

journal_title：Journal of vision

authors： Doerschner K,Boyaci H,Maloney LT

更新日期：2004-02-27 00:00:00

abstract：:Conventional magnetic resonance imaging (MRI) is useful for assessing morphological changes but not for assessing deformations inside homogeneous structures (M. D. Abràmoff, A. P. Van Gils, G. H. Jansen, & M. P. Mourits, 2000). Since no intrinsic contrast can be imaged for distinguishing heterogeneous patterns of musc...

journal_title：Journal of vision

authors： Piccirelli M,Luechinger R,Rutz AK,Boesiger P,Bergamin O

更新日期：2007-11-21 00:00:00

abstract：:Perceiving three-dimensional object motion while moving through the world is hard: not only must optic flow be segmented and parallax resolved into shape and motion, but also observer motion needs to be taken into account in order to perceive absolute, rather than observer-relative motion. In order to simplify the las...

journal_title：Journal of vision

authors： Dupin L,Wexler M

更新日期：2013-02-08 00:00:00

abstract：:The pedestal effect is the improvement in the detectability of a sinusoidal grating in the presence of another grating of the same orientation, spatial frequency, and phase-usually called the pedestal. Recent evidence has demonstrated that the pedestal effect is differently modified by spectrally flat and notch-filter...

journal_title：Journal of vision

authors： Goris RL,Wichmann FA,Henning GB

更新日期：2009-07-31 00:00:00

abstract：:The investigation of cognitive influence on binocular rivalry has a long history. However, the effects of visual WM on rivalry have never been studied so far. We examined top-down modulation of rivalry perception in four experiments to compare the effects of visual WM and sustained selective attention: In the first th...

journal_title：Journal of vision

authors： Scocchia L,Valsecchi M,Gegenfurtner KR,Triesch J

更新日期：2014-05-30 00:00:00

abstract：:Microsaccades can elevate contrast detection thresholds of human observers and modulate the activity of neurons in monkey visual cortex. Whether microsaccades elevate contrast detection thresholds in monkey observers is not known and bears on the interpretation of neurophysiological experiments. To answer this questio...

journal_title：Journal of vision

authors： Hass CA,Horwitz GD

更新日期：2011-03-04 00:00:00

abstract：:Our nervous system typically processes signals from multiple sensory modalities at any given moment and is therefore posed with two important problems: which of the signals are caused by a common event, and how to combine those signals. We investigated human perception in the presence of auditory, visual, and tactile ...

journal_title：Journal of vision

authors： Wozny DR,Beierholm UR,Shams L

更新日期：2008-03-27 00:00:00

abstract：:Although luminance and color are thought to be processed independently at early stages of visual processing, there is evidence that they interact at later stages. For example, chromatic information has been shown to enhance or suppress depth from luminance depending on whether chromatic edges are aligned or orthogonal...

journal_title：Journal of vision

authors： Clery S,Bloj M,Harris JM

更新日期：2013-04-18 00:00:00

abstract：:Visually inferring the stiffness of objects is important for many tasks but is challenging because, unlike optical properties (e.g., gloss), mechanical properties do not directly affect image values. Stiffness must be inferred either (a) by recognizing materials and recalling their properties (associative approach) or...

journal_title：Journal of vision

authors： Schmidt F,Paulun VC,van Assen JJ,Fleming RW

更新日期：2017-03-01 00:00:00

abstract：:Studies of eccentricity-dependent sensitivity loss typically require participants to maintain fixation while making judgments about stimuli presented at a range of sizes and eccentricities. However, training participants to fixate can prove difficult, and as stimulus size increases, they become poorly localized and ma...

journal_title：Journal of vision

authors： Johnson A,Gurnsey R

更新日期：2010-10-01 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：:This study examined the role of spatiotemporal feature attribution in the perception of the visual size of objects. A small or a large leading disk, a test disk of variable size, and a probe disk of a fixed size were sequentially presented at the same position for durations of 16.7 ms with interstimulus intervals of 1...

journal_title：Journal of vision

authors： Kawabe T

更新日期：2008-06-12 00:00:00

abstract：:Kittens reared with mixed daily visual input that consists of episodes of normal (binocular) exposure followed by abnormal (monocular) exposure can develop normal visual acuity in both eyes if the length of the former exposure exceeds a critical amount. However, later studies of the tuning of cells in primary visual c...

journal_title：Journal of vision

authors： Mitchell DE,Kennie J,Schwarzkopf DS,Sengpiel F

更新日期：2009-05-21 00:00:00