Activity in visual area V4 correlates with surface perception.

abstract：:In motion transparency, one surface is very often seen on top of the other in spite of no proper depth cue in the display. We investigated the dynamics of depth assignment in motion transparency stimuli composed of random dots moving in opposite directions. Similarly to other bistable percepts, which surface is seen i...

journal_title：Journal of vision

authors： Mamassian P,Wallace JM

更新日期：2010-11-01 00:00:00

abstract：:In visual crowding, identification of a peripheral object is impaired by nearby objects. Recent studies have demonstrated that crowding is not limited only to interaction between low-level features or parts, as presumed by most models of crowding, but can also occur between high-level, configural representations of ob...

journal_title：Journal of vision

authors： Pirkner Y,Kimchi R

更新日期：2017-09-01 00:00:00

abstract：:In everyday life, our brains decide about the relevance of huge amounts of sensory input. Further complicating this situation, this input is distributed over different modalities. This raises the question of how different sources of information interact for the control of overt attention during free exploration of the...

journal_title：Journal of vision

authors： Onat S,Libertus K,König P

更新日期：2007-07-25 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：:Visual crowding refers to a phenomenon whereby objects that appear in the periphery of the visual field are more difficult to identify when embedded within clutter. Pooling models assert that crowding results from an obligatory averaging or other combination of target and distractor features that occurs prior to aware...

journal_title：Journal of vision

authors： Ester EF,Zilber E,Serences JT

更新日期：2015-01-08 00:00:00

abstract：:Previous studies have shown that an odd-colored target among uniformly colored distractors can be rapidly detected and localized using broadly distributed attention over an entire display. In the current study, we show that such a broadly distributed attentional allocation is not sufficient for seemingly effortless go...

journal_title：Journal of vision

authors： Song JH,Nakayama K

更新日期：2006-08-30 00:00:00

abstract：:Whenever two or more sensory inputs are highly consistent in one or more dimension(s), observers will be more likely to perceive them as a single multisensory event rather than as separate unimodal events. For audiovisual speech, but not for other noncommunicative events, participants exhibit a "unity effect," whereby...

journal_title：Journal of vision

authors： Vatakis A,Ghazanfar AA,Spence C

更新日期：2008-07-29 00:00:00

abstract：:We evaluated the ability of emmetropic and myopic observers to detect and discriminate blur across the retina under monocular or binocular viewing conditions. We recruited 39 young (23-30 years) healthy adults (n = 19 myopes) with best-corrected visual acuity 0.0 LogMAR (20/20) or better in each eye and no binocular o...

journal_title：Journal of vision

authors： Maiello G,Walker L,Bex PJ,Vera-Diaz FA

更新日期：2017-05-01 00:00:00

abstract：:Various equations that describe how observers could recover the trajectory of an approaching object have been put forward. Many are relatively complex formulations that recover the veridical trajectory by scaling retinal cues, such as looming and changing disparity. However, these equations do not seem to describe hum...

journal_title：Journal of vision

authors： Duke PA,Rushton SK

更新日期：2012-03-08 00:00:00

abstract：:The essentially active nature of vision has long been acknowledged but has been difficult to investigate because of limitations in the available instrumentation, both for measuring eye and body movements and for presenting realistic stimuli in the context of active behavior. These limitations have been substantially r...

journal_title：Journal of vision

authors： Hayhoe MM

更新日期：2018-04-01 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：:Natural visual scenes contain several independent sources of information (cues) about a single property such as slant. It is widely assumed that the visual system processes such cues separately and then combines them with an averaging operation that takes the reliabilities of the individual cues into account. Does tha...

journal_title：Journal of vision

authors： Muller CM,Brenner E,Smeets JB

更新日期：2007-02-16 00:00:00

abstract：:The organization of human lateral occipitotemporal cortex (lOTC) has been characterized largely according to two distinct principles: retinotopy and category-selectivity. Whereas category-selective regions were originally thought to exist beyond retinotopic maps, recent evidence highlights overlap. Here, we combined d...

journal_title：Journal of vision

authors： Silson EH,Groen II,Kravitz DJ,Baker CI

更新日期：2016-01-01 00:00:00

abstract：:The standard psychophysical model of our early visual system consists of a linear filter stage, followed by a nonlinearity and an internal noise source. If a rectification mechanism is introduced at the output of the linear filter stage, as has been suggested on some occasions, this model actually predicts that human ...

journal_title：Journal of vision

authors： Goris RL,Zaenen P,Wagemans J

更新日期：2008-07-10 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：:Knowledge of target features can guide attention in many conjunction searches in a top-down manner. For example, in search of a red vertical line among blue vertical and red horizontal lines, observers can guide attention toward all red items and all vertical items. In typical conjunction searches, distractors often f...

journal_title：Journal of vision

authors： Utochkin IS,Khvostov VA,Wolfe JM

更新日期：2020-08-03 00:00:00

abstract：:Observers performed three between- and two within-category perceptual decisions with hybrid stimuli comprising low and high spatial frequency (SF) images. We manipulated (a) attention to, and (b) congruency of information in the two SF bands. Processing difficulty of the different SF bands varied across different cate...

journal_title：Journal of vision

authors： Rotshtein P,Schofield A,Funes MJ,Humphreys GW

更新日期：2010-08-24 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：: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：: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：:A vast literature exists on human biological motion perception in impoverished displays, e.g., point-light walkers. Less is known about the perception of impoverished biological motion displays in macaques. We trained 3 macaques in the discrimination of facing direction (left versus right) and forward versus backward ...

journal_title：Journal of vision

authors： Vangeneugden J,Vancleef K,Jaeggli T,VanGool L,Vogels R

更新日期：2009-04-28 00:00:00

abstract：:We describe several experiments on contour interactions and crowding effects at the resolution limit of the visual system. As test stimuli we used characters that are often employed in optometric practice for testing visual acuity: Landolt C's, Snellen E's, and rectangular gratings. We tested several hypotheses that h...

journal_title：Journal of vision

authors： Danilova MV,Bondarko VM

更新日期：2007-11-27 00:00:00

abstract：:Spatial attention permits to allocate more processing resources to a restricted portion of the visual space. The influential premotor theory states that the allocation of spatial attention relies on the same processes as those responsible for programming saccadic eye movements. Accordingly, several studies have alread...

journal_title：Journal of vision

authors： Filali-Sadouk N,Castet E,Olivier E,Zenon A

更新日期：2010-04-28 00:00:00

abstract：:Previous studies of the motion aperture problem have shown that the direction of grating motion can be biased by using binocular disparity to designate borders of the aperture as intrinsic (belonging to the grating) or extrinsic (resulting from occlusion of the grating). Observers report motion in the direction of the...

journal_title：Journal of vision

authors： Graf EW,Adams WJ,Lages M

更新日期：2004-05-19 00:00:00

abstract：:Two of the factors limiting progress in understanding the mechanisms of visual search are the difficulty of controlling and manipulating the retinal stimulus when the eyes are free to move and the lack of an ideal observer theory for fixation selection during search. Recently, we developed a method to precisely contro...

journal_title：Journal of vision

authors： Geisler WS,Perry JS,Najemnik J

更新日期：2006-08-03 00:00:00

abstract：:Recently, researchers have begun to investigate how nonspatial perceptual information is extracted into visual working memory (VWM), focusing particularly on object-based encoding (OBE). That is, whenever even one feature-dimension is selected for entry into VWM, the others are also extracted automatically. While ther...

journal_title：Journal of vision

authors： Shen M,Tang N,Wu F,Shui R,Gao Z

更新日期：2013-02-01 00:00:00

abstract：:Visually guided catch-up saccades during the pursuit of a moving target are highly influenced by smooth pursuit performance. For example, the decision to execute a saccade and its amplitude is driven by the difference in velocity between the eye and the target. In previous studies, we have demonstrated that the predic...

journal_title：Journal of vision

authors： Orban de Xivry JJ,Missal M,Lefèvre P

更新日期：2009-10-06 00:00:00

abstract：:A key challenge for the visual system is to extract constant object properties from incoming sensory information. This information is ambiguous because the same sensory signal can arise from many combinations of object properties and viewing conditions and noisy because of the variability in sensory encoding. The comp...

journal_title：Journal of vision

authors： Olkkonen M,Saarela TP,Allred SR

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：:Research in the Visual Development Unit on "dorsal stream vulnerability' (DSV) arose from research in two somewhat different areas. In the first, using cortical milestones for local and global processing from our neurobiological model, we identified cerebral visual impairment in infants in the first year of life. In t...

journal_title：Journal of vision

authors： Atkinson J

更新日期：2017-03-01 00:00:00