Chromatic contrast in luminance-defined images affects performance and neural activity during a shape classification task.

abstract：:The presence of differential item functioning (DIF) in a test suggests bias that could disadvantage members of a certain group. Previous work with tests of visual learning abilities found significant DIF related to age groups in a car test (Lee, Cho, McGugin, Van Gulick, & Gauthier, 2015), but not in a face test (Cho ...

journal_title：Journal of vision

authors： Sunday MA,Lee WY,Gauthier I

更新日期：2018-01-01 00:00:00

abstract：:Previous literature suggests that low-level stimulus properties determine the detection performance of contours and are used to define different contour types. Here we investigated the processing of different types of contours under conscious and unconscious conditions. In Experiment 1, we adopted an inattentional bli...

journal_title：Journal of vision

authors： Li Y,Li S

更新日期：2015-01-01 00:00:00

abstract：:Express saccades (ES) are the most reflexive saccadic eye movements, with very short reaction times of 70-110 ms. It is likely that ES have the shortest saccade reaction times (SRTs) possible given the known physiological and anatomical delays present in sensory and motor systems. Nevertheless, it has been demonstrate...

journal_title：Journal of vision

authors： Edelman JA,Mieses AM,Konnova K,Shiu D

更新日期：2017-03-01 00:00:00

abstract：:Because we live in a dynamic environment with moving eyes and body, our retinas are often stimulated by new scenes that appear suddenly and are only briefly available. How the visual system successfully extracts information from such challenging stimulation is not yet understood. For some stimuli, like photos of natur...

journal_title：Journal of vision

authors： Linares D,Motoyoshi I,Nishida S

更新日期：2012-09-06 00:00:00

abstract：:Measurements of area summation for luminance-modulated stimuli are typically confounded by variations in sensitivity across the retina. Recently we conducted a detailed analysis of sensitivity across the visual field (Baldwin, Meese, & Baker, 2012) and found it to be well described by a bilinear "witch's hat" function...

journal_title：Journal of vision

authors： Baldwin AS,Meese TS

更新日期：2015-01-01 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：:Our perceptions are fundamentally altered by our expectations, i.e., priors about the world. In previous statistical learning experiments (Chalk, Seitz, & Seriès, 2010), we investigated how such priors are formed by presenting subjects with white low contrast moving dots on a blank screen and using a bimodal distribut...

journal_title：Journal of vision

authors： Gekas N,Chalk M,Seitz AR,Seriès P

更新日期：2013-03-13 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：:Adaptation to a blurred image causes a physically focused image to appear too sharp, and shifts the point of subjective focus toward the adapting blur, consistent with a renormalization of perceived focus. We examined whether and how this adaptation normalizes to differences in blur between the two eyes, which can rou...

journal_title：Journal of vision

authors： Kompaniez E,Sawides L,Marcos S,Webster MA

更新日期：2013-05-31 00:00:00

abstract：:The ability to track multiple moving objects with attention has been the focus of much research. However, the literature is relatively inconclusive regarding two key aspects of this ability, (1) whether the distribution of attention among the tracked targets is fixed during a period of tracking or is dynamically adjus...

journal_title：Journal of vision

authors： Iordanescu L,Grabowecky M,Suzuki S

更新日期：2009-04-03 00:00:00

abstract：:Search is commonly described as a repeating cycle of guidance to target-like objects, followed by the recognition of these objects as targets or distractors. Are these indeed separate processes using different visual features? We addressed this question by comparing observer behavior to that of support vector machine ...

journal_title：Journal of vision

authors： Zelinsky GJ,Peng Y,Berg AC,Samaras D

更新日期：2013-10-08 00:00:00

abstract：:The link between arousal and pupil dilation is well studied, but it is less known that other cognitive processes can trigger pupil responses. Here we present evidence that pupil responses can be induced by high-level scene processing, independent of changes in low-level features or arousal. In Experiment 1, we recorde...

journal_title：Journal of vision

authors： Naber M,Nakayama K

更新日期：2013-05-17 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：:Eye movements are the most frequent (∼3/s), shortest-latency (∼150-250 ms), and biomechanically simplest (one joint, no inertial complexities) voluntary motor behavior in primates, providing a model system to assess sensorimotor disturbances arising from trauma, fatigue, aging, or disease states. We have developed a 1...

journal_title：Journal of vision

authors： Liston DB,Stone LS

更新日期：2014-12-19 00:00:00

abstract：:Features of moving objects are non-retinotopically integrated along their motion trajectories as demonstrated by a variety of recent studies. The mechanisms of non-retinotopic feature integration are largely unknown. Here, we investigated the role of attention in non-retinotopic feature integration by using the sequen...

journal_title：Journal of vision

authors： Otto TU,Öğmen H,Herzog MH

更新日期：2010-10-01 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：:Performance on interval timing is often explained by the assumption of an internal clock based on neural counting. According to this account, a neural pacemaker generates pulses, and the number of pulses relating to a physical time interval is recorded by a counter. Thus, the number of accumulated pulses is the intern...

journal_title：Journal of vision

authors： Rammsayer TH,Verner M

更新日期：2015-03-10 00:00:00

abstract：:Between-eye differences in color or luminance result in the appearance of luster, which provides a cue for detecting between-eye differences. We measured thresholds for detecting between-eye differences in both hue and chromatic contrast (saturation) in dichoptically superimposed color patches. Sensitivity was found t...

journal_title：Journal of vision

authors： Jennings BJ,Kingdom FA

更新日期：2016-01-01 00:00:00

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：:We used binocular stimuli to define how the visual location of stereoscopic depth structure maps topographically onto the human visual cortex. The main stimulus consisted of a circular disk of dots, most at zero-disparity, against which a single quadrant was defined with changing disparity ('correlated' disparity), an...

journal_title：Journal of vision

authors： Bridge H,Parker AJ

更新日期：2007-12-17 00:00:00

abstract：:We demonstrate a new type of interaction between suprathreshold color (chromatic) and luminance contrast in the context of binocular vision. When two isoluminant colored disks of identical hue but different saturations are presented to different eyes, the apparent saturation of the resulting "dichoptic" mix is close t...

journal_title：Journal of vision

authors： Kingdom FA,Libenson 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：:This study examined the roles of pupillary miosis and experience-mediated compensation in older observers' superior ability to read optically blurred text. The size thresholds of younger and older adult observers for reading common words and identifying line drawings of everyday objects were compared with natural and ...

journal_title：Journal of vision

authors： Jung GH,Kline DW

更新日期：2010-05-01 00:00:00

abstract：:When haptically exploring softness, humans use higher peak forces when indenting harder versus softer objects. Here, we investigated the influence of different channels and types of prior knowledge on initial peak forces. Participants explored two stimuli (hard vs. soft) and judged which was softer. In Experiment 1 pa...

journal_title：Journal of vision

authors： Zoeller AC,Lezkan A,Paulun VC,Fleming RW,Drewing K

更新日期：2019-04-01 00:00:00

abstract：:Early visual processing analyses fine and coarse image features separately. Here we show that motion signals derived from fine and coarse analyses are combined in rather a surprising way: Coarse and fine motion sensors representing the same direction of motion inhibit one another and an imbalance can reverse the motio...

journal_title：Journal of vision

authors： Serrano-Pedraza I,Goddard P,Derrington AM

更新日期：2007-09-20 00:00:00

abstract：:When static observers are presented with a visual simulation of forward self-motion, they generally misestimate distance travelled relative to a previously seen distant target: It has been suggested that this finding can be accounted for by a "leaky path integration" model. In the present study, using a similar experi...

journal_title：Journal of vision

authors： Bossard M,Goulon C,Mestre DR

更新日期：2016-12-01 00:00:00

abstract：:The visual mismatch negativity (vMMN) is a negative component of event-related potentials (ERPs). It occurs when an infrequent visual stimulus, a deviant, is randomly and unpredictably presented in a sequence of frequent visual stimuli, the standards, and is thought to reflect prediction and prediction error of visual...

journal_title：Journal of vision

authors： Jack BN,Roeber U,O'Shea RP

更新日期：2015-01-01 00:00:00

abstract：:The position of a saccade target can be encoded in gaze-centered coordinates, that is, relative to the current gaze position, or in object-centered coordinates, that is, relative to an object in the environment. We tested the role of gaze-centered and object-centered coding in a double-step saccade task involving the ...

journal_title：Journal of vision

authors： de Brouwer AJ,Medendorp WP,Smeets JB

更新日期：2016-11-01 00:00:00

abstract：:It has been shown previously that liking and valence of associations in response to artworks show greater convergence across viewers for representational than for abstract artwork. The current research explored whether the same applies to the semantic content of the associations. We used data gained with an adapted un...

journal_title：Journal of vision

authors： Schepman A,Rodway P,Pullen SJ

更新日期：2015-01-01 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