Activity in visual area V4 correlates with surface perception.

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：:Perceptual grouping plays an indispensable role in figure-ground segregation and attention distribution. For example, a column pops out if it contains element bars orthogonal to uniformly oriented element bars. Jingling and Tseng (2013) have reported that contextual grouping in a column matters to visual search behavi...

journal_title：Journal of vision

authors： Chow HM,Jingling L,Tseng CH

更新日期：2013-08-29 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：: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：:Humans frequently estimate the size of objects to grasp them. In fact, when performing an action, our perception is focused towards the visual properties of the object that enable us to successfully execute the action. However, the motor system is also able to influence perception, but only a few studies have reported...

journal_title：Journal of vision

authors： Bosco A,Daniele F,Fattori P

更新日期：2017-10-01 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：:Determining the features of natural stimuli that are most useful for specific natural tasks is critical for understanding perceptual systems. A new approach is described that involves finding the optimal encoder for the natural task of interest, given a relatively small population of noisy "neurons" between the encode...

journal_title：Journal of vision

authors： Geisler WS,Najemnik J,Ing AD

更新日期：2009-12-16 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：:Given the inherent difference in judgment required to complete visual detection and identification tasks, it is unknown whether task selection differentially affects visual performance as a function of development. The aim of the present study is therefore to systematically assess and contrast visual performance using...

journal_title：Journal of vision

authors： Hanck J,Cornish K,Perreault A,Kogan C,Bertone A

更新日期：2012-06-01 00:00:00

abstract：:Visual prostheses for the restoration of functional vision are currently under development. To guide prosthesis research and allow for an accurate prognosis of functional gain, simulating the experience of a retinal prosthesis in healthy individuals is desirable. Current simulation paradigms lack crucial aspects of th...

journal_title：Journal of vision

authors： van Rheede JJ,Kennard C,Hicks SL

更新日期：2010-12-29 00:00:00

abstract：:Visual systems adapt to the prevailing image conditions. This improves the ability to discriminate between two similar stimuli but has the side effect that veridical perception is degraded. For example, prolonged driving at 100 km/h may reduce the perceived speed to 80 km/h but improve the sensitivity to changes in th...

journal_title：Journal of vision

authors： Hietanen MA,Crowder NA,Ibbotson MR

更新日期：2008-08-11 00:00:00

abstract：:The relationship between attention and awareness and the processing of visual information outside of attention and awareness remain controversial issues. We employed the motion aftereffect (MAE) illusion and continuous flash suppression (CFS) to study the behavioral effects of unseen and unattended visual motion. The ...

journal_title：Journal of vision

authors： Kaunitz L,Fracasso A,Melcher D

更新日期：2011-11-09 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：: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：:The ability to pursue moving objects with the eyes is vital to humans. However, it remains unclear how the brain differentiates visual object motion, smooth pursuit eye movements (SPEM), and eye movement-induced relative motion on the retina and where visual-to-oculomotor transformation takes place. To characterize fu...

journal_title：Journal of vision

authors： Ohlendorf S,Sprenger A,Speck O,Glauche V,Haller S,Kimmig H

更新日期：2010-12-20 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 studied mechanisms underlying the crowding effect in indirect form vision by measuring recognition contrast sensitivity of a character with flankers to the left and right. Attentional and featural contributions to the effect can be separated by a new paradigm that distinguishes pattern location errors from pattern ...

journal_title：Journal of vision

authors： Strasburger H

更新日期：2005-12-29 00:00:00

abstract：:Our recent psychophysical experiments have identified differences in the spatial summation characteristics of pattern detection and position discrimination tasks performed with rotating, expanding, and contracting stimuli. Areas MT and MST are well established to be involved in processing these stimuli. fMRI results h...

journal_title：Journal of vision

authors： Harvey BM,Braddick OJ,Cowey A

更新日期：2010-05-01 00:00:00

abstract：:Lower order image statistics, which can be described by an image's Fourier energy content, enable segmentation when they are different on either side of a boundary. We have previously demonstrated that the spatial distribution of the energy in an image (described by its higher order statistics or structure) could infl...

journal_title：Journal of vision

authors： Zavitz E,Baker CL Jr

更新日期：2014-01-01 00:00:00

abstract：:During perceptual rivalry, an observer's perceptual experience alternates over time despite constant sensory stimulation. Perceptual alternations are thought to be driven by conflicting or ambiguous retinal image features at a particular spatial location and modulated by global context from surrounding locations. Howe...

journal_title：Journal of vision

authors： Chen Z,Maus GW,Whitney D,Denison RN

更新日期：2017-01-01 00:00:00

abstract：:It is well established that the apparent duration of moving visual objects is greater at higher as compared to slower speeds. Here we report the effects of acceleration and deceleration on the perceived duration of a drifting grating with average speed kept constant (10°/s).For acceleration, increasing the speed range...

journal_title：Journal of vision

authors： Bruno A,Ayhan I,Johnston A

更新日期：2015-01-01 00:00:00

abstract：:Are people biologically prepared for the rapid detection of threat posed by an angry facial expression, even when it is conveyed in the form of a schematic line drawing? Based on visual search times, the current literature would suggest that the answer is yes. But are there low-level explanations for this effect? Here...

journal_title：Journal of vision

authors： Kennett MJ,Wallis G

更新日期：2019-07-01 00:00:00

abstract：:Rapidly decoding the emotional content of a face is an important skill for successful social behavior. Several Event Related brain Potential (ERP) have indicated that emotional expressions already influence brain activity as early as 100 ms. Some studies hypothesized that this early brain response to fear depends on c...

journal_title：Journal of vision

authors： Vlamings PH,Goffaux V,Kemner C

更新日期：2009-05-14 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：:Animals exploit antagonistic interactions for sensory processing and these can cause oscillations between competing states. Ambiguous sensory inputs yield such perceptual multistability. Despite numerous empirical studies using binocular rivalry or plaid pattern motion, the driving mechanisms behind the spontaneous tr...

journal_title：Journal of vision

authors： Meso AI,Rankin J,Faugeras O,Kornprobst P,Masson GS

更新日期：2016-12-01 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：:The leading edge of the a-wave of the ERG is generally believed to accurately reflect the changes in the circulating current through the cGMP-gated channels in the outer segment plasma membrane of rods and cones. The aspartate-isolated mammalian electroretinogram (ERG) to a rod-saturating flash contains a fast "nose"-...

journal_title：Journal of vision

authors： Vinberg FJ,Strandman S,Koskelainen A

更新日期：2009-11-17 00:00:00

abstract：:In order to maintain visual stability during self-motion, the brain needs to update any egocentric spatial representations of the environment. Here, we use a novel psychophysical approach to investigate how and to what extent the brain integrates visual, extraocular, and vestibular signals pertaining to this spatial u...

journal_title：Journal of vision

authors： Clemens IA,Selen LP,Koppen M,Medendorp WP

更新日期：2012-11-14 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：: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