Surround facilitation for rapid motion perception.

abstract：:We investigated the role of global optic flow for visual-motor adaptation of walking direction. In an immersive virtual environment, observers walked to a circular target lying on either a homogeneous ground plane (target-motion condition) or a textured ground plane (ground-flow condition). During adaptation trials, w...

journal_title：Journal of vision

authors： Saunders JA,Durgin FH

更新日期：2011-03-22 00:00:00

abstract：:Symbolic numbers (e.g., "2") acquire their meaning by becoming linked to the core nonsymbolic quantities they represent (e.g., two items). However, the extent to which symbolic and nonsymbolic information converges onto the same internal core representations of quantity remains a point of considerable debate. As nearl...

journal_title：Journal of vision

authors： Chapman CS,Gallivan JP,Wood DK,Milne JL,Ansari D,Culham JC,Goodale MA

更新日期：2014-03-26 00:00:00

abstract：:Visual crowding refers to the marked inability to identify an otherwise perfectly identifiable object when it is flanked by other objects. Crowding places a significant limit on form vision in the visual periphery; its mechanism is, however, unknown. Building on the method of signal-clamped classification images (Tjan...

journal_title：Journal of vision

authors： Nandy AS,Tjan BS

更新日期：2007-02-07 00:00:00

abstract：:In the barber-pole illusion (BPI), a diagonally moving grating is perceived as moving vertically because of the shape of the vertically oriented window through which it is viewed-a strong shape-motion interaction. We introduce a novel stimulus-the moving barber pole-in which a diagonal, drifting sinusoidal carrier is ...

journal_title：Journal of vision

authors： Sun P,Chubb C,Sperling G

更新日期：2014-05-01 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：:The cerebral cortex has both anatomical and functional specialization, but the level of correspondence between the two in the human brain has remained largely elusive. Recent successes in high-resolution magnetic resonance imaging of myeloarchitecture patterns in the cortex suggest that it may now be possible to compa...

journal_title：Journal of vision

authors： Bridge H,Clare S,Jenkinson M,Jezzard P,Parker AJ,Matthews PM

更新日期：2005-02-11 00:00:00

abstract：:We evaluated spatial displacement and temporal duration thresholds for discriminating the motion direction of gratings for a broad range of speeds (0.06 degrees/s to 30 degrees/s) in fovea and at +/-30 degrees eccentricity. In general, increased speed yielded lower duration thresholds but higher displacement threshold...

journal_title：Journal of vision

authors： Lappin JS,Tadin D,Nyquist JB,Corn AL

更新日期：2009-01-22 00:00:00

abstract：:The effects of signal and noise on contrast discrimination are difficult to separate because of a singularity in the signal-detection-theory model of two-alternative forced-choice contrast discrimination (Katkov, Tsodyks, & Sagi, 2006). In this article, we show that it is possible to eliminate the singularity by combi...

journal_title：Journal of vision

authors： Ding J,Levi DM

更新日期：2016-01-01 00:00:00

abstract：:Recent research has begun to explore not just the spatial distribution of eye fixations but also the temporal dynamics of how we look at the world. In this investigation, we assess how scene characteristics contribute to these fixation dynamics. In a free-viewing task, participants viewed three scene types: fractal, l...

journal_title：Journal of vision

authors： Wu DW,Anderson NC,Bischof WF,Kingstone A

更新日期：2014-08-11 00:00:00

abstract：:Although it is known that a moving stimulus appears to dilate in duration compared to a stationary stimulus, whether subjective motion devoid of stimulus motion is sufficient remains unknown. To elucidate this, we used a motion illusion in which an actually static stimulus clearly appears to move, a useful dissociatio...

journal_title：Journal of vision

authors： Aoki S,Kawano A,Terao M,Murakami I

更新日期：2016-11-01 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：:To obtain a coherent percept of the environment, the brain should integrate sensory signals from common sources and segregate those from independent sources. Recent research has demonstrated that humans integrate audiovisual information during spatial localization consistent with Bayesian Causal Inference (CI). Howeve...

journal_title：Journal of vision

authors： Rohe T,Noppeney U

更新日期：2015-01-01 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

abstract：:The development of spatiotemporal interactions giving rise to classical receptive field properties has been well studied in animal models, but little is known about the development of putative nonclassical mechanisms in any species. Here we used visual evoked potentials to study the developmental status of spatiotempo...

journal_title：Journal of vision

authors： Norcia AM,Pei F,Kohler PJ

更新日期：2017-06-01 00:00:00

abstract：:Spatial processing resolution of a particular object in the visual field can differ considerably due to eye movements. The same object will be represented with high acuity in the fovea but only coarsely in periphery. Herwig and Schneider (in press) proposed that the visual system counteracts such resolution difference...

journal_title：Journal of vision

authors： Weiß K,Schneider WX,Herwig A

更新日期：2014-09-09 00:00:00

abstract：:In a wide variety of neural systems, neurons tuned to a primary dimension of interest often have responses that are modulated in a multiplicative manner by other features such as stimulus intensity or contrast. In this methodological study, we present a demonstration that it is possible to use psychophysical experimen...

journal_title：Journal of vision

authors： DiMattina C

更新日期：2016-07-01 00:00:00

abstract：:Many encoding mechanisms and processing strategies in the visual system appear to have evolved to better process the prevalent content in the visual world. Here we examine the relationship between the prevalence of natural scene content at different orientations and visual ability for detecting oriented natural scene ...

journal_title：Journal of vision

authors： Hansen BC,Essock EA

更新日期：2004-12-10 00:00:00

abstract：:Computational models of spatial vision typically make use of a (rectified) linear filter, a nonlinearity and dominant late noise to account for human contrast discrimination data. Linear-nonlinear cascade models predict an improvement in observers' contrast detection performance when low, subthreshold levels of extern...

journal_title：Journal of vision

authors： Goris RL,Wagemans J,Wichmann FA

更新日期：2008-11-24 00:00:00

abstract：:This study investigated the relative contributions of overt and covert attention on the apparent anticipatory nature of attention in two experiments, using two different object tracking tasks, both combined with a probe detection task. In Experiment 1, we investigated the distribution of attention for overtly and cove...

journal_title：Journal of vision

authors： Frielink-Loing AF,Koning A,van Lier R

更新日期：2017-04-01 00:00:00

abstract：:We investigated the perception of three-dimensional plane orientation--focusing on the perception of tilt--from optic flow generated by the observer's active movement around a simulated stationary object, and compared the performance to that of an immobile observer receiving a replay of the same optic flow. We found t...

journal_title：Journal of vision

authors： van Boxtel JJ,Wexler M,Droulez J

更新日期：2003-01-01 00:00:00

abstract：:Two questions were posed in the present study: (1) Do infants search for discrepant items in the absence of instructions? We outline where previous research has been inconclusive in answering this question. (2) In what manner do infants search, and what are the fixation and saccade characteristics in saccadic search? ...

journal_title：Journal of vision

authors： Hessels RS,Hooge IT,Kemner C

更新日期：2016-06-01 00:00:00

abstract：:The seminal study on perceptual learning of TDT (a texture discrimination task) has greatly shaped the field of perceptual learning up to the present time. However, here we demonstrate that this classic learning mostly involves temporal learning, rather than texture discrimination learning. Specifically, observers fir...

journal_title：Journal of vision

authors： Wang R,Cong LJ,Yu C

更新日期：2013-04-12 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：:Human observers can determine whether natural scenes contain an animal or not on the basis of as little as 20 ms viewing; a phenomenon termed ultra-rapid categorization (URC). Recent studies have suggested that URC is unimpaired even when attention resources are concurrently devoted to a second task. This apparent ind...

journal_title：Journal of vision

authors： Walker S,Stafford P,Davis G

更新日期：2008-04-23 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：: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：:Early visual processing is surprisingly flexible even in the adult brain. This flexibility involves both long-term structural plasticity and online adaptations conveyed by top-down feedback. Although this view is supported by rich evidence from both human behavioral studies and invasive electrophysiology in nonhuman m...

journal_title：Journal of vision

authors： Herde L,Uhl J,Rauss K

更新日期：2020-06-03 00:00:00

abstract：:In binocular viewing, images presented to the amblyopic eye are suppressed in the cortex to prevent confusion or diplopia. The present study measures depth and extent of interocular suppression across the central circular 24° visual field in observers with strabismus and microstrabismus. Visual stimuli were concentric...

journal_title：Journal of vision

authors： Chima AS,Formankiewicz MA,Waugh SJ

更新日期：2016-08-01 00:00:00

abstract：:We used custom-designed acuity tests to compare the magnitude and extent of crowded letter recognition in children and adults. Visual acuity (logMAR) was measured monocularly in children and adults using five custom-designed letter tests with varying degrees of crowding: single letter, single letter surrounded by four...

journal_title：Journal of vision

authors： Norgett Y,Siderov J

更新日期：2014-10-23 00:00:00

abstract：:Previous work on the straddle effect in contrast perception (Foley, 2011; Graham & Wolfson, 2007; Wolfson & Graham, 2007, 2009) has used visual patterns and observer tasks of the type known as spatially second-order. After adaptation of about 1 s to a grid of Gabor patches all at one contrast, a second-order test patt...

journal_title：Journal of vision

authors： Graham NV,Wolfson SS

更新日期：2018-05-01 00:00:00