Neural correlates of object-based attention.

abstract：:When people inspect a picture, they progress through two distinct phases of visual processing: an ambient, or exploratory, phase that emphasizes input from peripheral vision and rapid acquisition of low-frequency information, followed by a focal phase that emphasizes central vision, salient objects, and high-frequency...

journal_title：Journal of vision

authors： Eisenberg ML,Zacks JM

更新日期：2016-01-01 00:00:00

abstract：:It is empirically known that some action-related visual tasks, which may rely on the construction of spatiotopic coordinates, are not well conducted under mesopic vision. The aim of this study was to clarify the effect of light level on the reference frame, such as retinotopic and spatiotopic coordinate bases, associa...

journal_title：Journal of vision

authors： Yoshimoto S,Uchida-Ota M,Takeuchi T

更新日期：2014-11-06 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：: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：: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：:Which face cues do we use for gender discrimination? Few studies have tried to answer this question and the few that have tried typically used only a small set of grayscale stimuli, often distorted and presented a large number of times. Here, we reassessed the importance of facial cues for gender discrimination in a m...

journal_title：Journal of vision

authors： Dupuis-Roy N,Fortin I,Fiset D,Gosselin F

更新日期：2009-02-10 00:00:00

abstract：:Adaptation to specific visuomotor mappings becomes faster when switching back and forth between them. What is learned when repeatedly switching between the visuomotor mappings: the absolute mappings or the relative shift between the mappings? To test this, we trained participants in a rapid pointing task using a uniqu...

journal_title：Journal of vision

authors： van Dam LC,Hawellek DJ,Ernst MO

更新日期：2013-01-01 00:00:00

abstract：:Amblyopia results in a severe loss of positional information and in the ability to accurately enumerate objects (V. Sharma, D. M. Levi, & S. A. Klein, 2000). In this study, we asked whether amblyopia also disrupts the ability to track a near-threshold change in the trajectory of a single target amongst multiple simila...

journal_title：Journal of vision

authors： Levi DM,Tripathy SP

更新日期：2006-11-28 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：: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：:Gaze behavior during scene and object recognition can highlight the relevant information for a task. For example, salience maps-highlighting regions that have heightened luminance, contrast, color, etc. in a scene-can be used to predict gaze targets. Certain tasks, such as face recognition, result in a typical pattern...

journal_title：Journal of vision

authors： Akhavein H,Farivar R

更新日期：2017-02-01 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：:We previously showed that different types of aberration defocus, coma, and secondary astigmatism affect reading performance via different mechanisms. In this paper, we show the contrary result that, for identification of isolated letters, the effects of rendering different types of aberration can be described by a sin...

journal_title：Journal of vision

authors： Young LK,Love GD,Smithson HE

更新日期：2013-06-20 00:00:00

abstract：:This work examines how context may influence the detection of changes in flickering scenes. Each scene contained two changes that were matched for low-level visual salience. One of the changes was of high interest to the meaning of the scene, and the other was of lower interest. High-interest changes were more readily...

journal_title：Journal of vision

authors： Kelley TA,Chun MM,Chua KP

更新日期：2003-01-01 00:00:00

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：:As pointed out by M. Wertheimer (1912), a number of qualitatively different motion impressions, such as "optimal motion," "part motion," and "pure phi," may be evoked by manipulating the temporal parameters of two-element apparent motion sequences. We investigated how the transitions between the different percepts dep...

journal_title：Journal of vision

authors： Ekroll V,Faul F,Golz J

更新日期：2008-04-29 00:00:00

abstract：:Three experimental paradigms were used to investigate the perception of orientation relative to internal categorical standards of vertical and horizontal. In Experiment 1, magnitude estimation of orientation (in degrees) relative to vertical and horizontal replicated a previously reported spatial orientation bias also...

journal_title：Journal of vision

authors： Durgin FH,Li Z

更新日期：2011-07-22 00:00:00

abstract：:When two verniers are presented in rapid succession at the same location, feature fusion occurs. Instead of perceiving two separate verniers, participants typically report perceiving one fused vernier, whose offset is a combination of the two previous verniers, with the later one slightly dominating. Here, we examined...

journal_title：Journal of vision

authors： Hochmitz I,Lauffs MM,Herzog MH,Yeshurun Y

更新日期：2018-06-01 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：: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：: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：: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：: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：: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：: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：:Visual short-term memory (VSTM) load leads to impaired perception during maintenance. Here, we fitted the contrast response function to psychometric orientation discrimination data while also varying attention demand during maintenance to investigate: (1) whether VSTM load effects on perception are mediated by a modul...

journal_title：Journal of vision

authors： Konstantinou N,Lavie N

更新日期：2020-10-01 00:00:00

abstract：:Although the orientation of line segments and simple shapes is a well-studied area of vision, little is known about geometric factors that influence perceived orientation of complex multipart shapes. The study of these factors is of interest because it allows for an insight into the basic problem of how local geometri...

journal_title：Journal of vision

authors： Cohen EH,Singh M

更新日期：2006-07-14 00:00:00

abstract：:Ernst Mach observed that light or dark bands could be seen at abrupt changes of luminance gradient in the absence of peaks or troughs in luminance. Many models of feature detection share the idea that bars, lines, and Mach bands are found at peaks and troughs in the output of even-symmetric spatial filters. Our experi...

journal_title：Journal of vision

authors： Wallis SA,Georgeson MA

更新日期：2012-12-21 00:00:00

abstract：:Facial expression is theorized to be visually represented in a multidimensional expression space, relative to a norm. This norm-based coding is typically argued to be implemented by a two-pool opponent coding system. However, the evidence supporting the opponent coding of expression cannot rule out the presence of a t...

journal_title：Journal of vision

authors： Burton N,Jeffery L,Calder AJ,Rhodes G

更新日期：2015-01-02 00:00:00

abstract：:In addition to its expected fast, additive L- and M-cone inputs (L + M), the luminance pathway has slow, spectrally opponent inputs. We have previously shown that on long-wavelength fields, the dominant slow signals change from L-M at moderate intensity levels to M-L signals at high. Here, we focus on the transition b...

journal_title：Journal of vision

authors： Stockman A,Plummer DJ

更新日期：2005-10-21 00:00:00