Is the early modulation of brain activity by fearful facial expressions primarily mediated by coarse low spatial frequency information?

abstract：:There are different opinions about the roles of local interactions and central processing capacity in visual search. This study attempts to clarify the problem using a new version of relevant set cueing. A central precue indicates two symmetrical segments (that may contain a target object) within a circular array of o...

journal_title：Journal of vision

authors： Põder E

更新日期：2017-04-01 00:00:00

abstract：:In human (D. H. Baker, T. S. Meese, & R. J. Summers, 2007b) and in cat (B. Li, M. R. Peterson, J. K. Thompson, T. Duong, & R. D. Freeman, 2005; F. Sengpiel & V. Vorobyov, 2005) there are at least two routes to cross-orientation suppression (XOS): a broadband, non-adaptable, monocular (within-eye) pathway and a more na...

journal_title：Journal of vision

authors： Meese TS,Baker DH

更新日期：2009-05-04 00:00:00

abstract：:Photographs and line drawings of natural scenes are easily classified even when the image is only briefly visible to the observer. Contour junctions and points of high curvature have been shown to be important for perceptual organization (Attneave, 1954; Biederman, 1987) and have been proposed to be influential in rap...

journal_title：Journal of vision

authors： Wilder J,Dickinson S,Jepson A,Walther DB

更新日期：2018-08-01 00:00:00

abstract：:How the visual system learns the statistical regularities (e.g., symmetry) needed to interpret pictorial cues to depth is one of the outstanding questions in perceptual science. We test the hypothesis that the visual system can adapt its model of the statistics of planar figures for estimating three-dimensional surfac...

journal_title：Journal of vision

authors： Knill DC

更新日期：2007-06-26 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：:In early retinotopic areas of the human visual system, information from the left and right visual hemifields (VHFs) is processed contralaterally in two hemispheres. Despite this segregation, we have the perceptual experience of a unified, coherent, and uninterrupted single visual field. How exactly the visual system i...

journal_title：Journal of vision

authors： Akin B,Ozdem C,Eroglu S,Keskin DT,Fang F,Doerschner K,Kersten D,Boyaci H

更新日期：2014-10-27 00:00:00

abstract：:The first two areas of the primate visual cortex (V1, V2) provide a paradigmatic example of hierarchical computation in the brain. However, neither the functional properties of V2 nor the interactions between the two areas are well understood. One key aspect is that the statistics of the inputs received by V2 depend o...

journal_title：Journal of vision

authors： Coen-Cagli R,Schwartz O

更新日期：2013-07-15 00:00:00

abstract：:The pedestal effect is the improvement in the detectability of a sinusoidal grating in the presence of another grating of the same orientation, spatial frequency, and phase-usually called the pedestal. Recent evidence has demonstrated that the pedestal effect is differently modified by spectrally flat and notch-filter...

journal_title：Journal of vision

authors： Goris RL,Wichmann FA,Henning GB

更新日期：2009-07-31 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：:One approach toward understanding how vision computes surface lightness is to first determine what principles govern lightness in simple stimuli and then test whether these hold for more complex stimuli. Gilchrist (2006) proposed that in the simplest images that produce the experience of a surface (two surfaces differ...

journal_title：Journal of vision

authors： Radonjić A,Gilchrist AL

更新日期：2014-11-25 00:00:00

abstract：:Oscillatory synchronization of neuronal populations has been proposed to play a role in perceptual integration and attentional processing. However, some conflicting evidence has been found with respect to its causal relevance for sensory processing, particularly when using flickering visual stimuli with the aim of dri...

journal_title：Journal of vision

authors： Bauer M,Akam T,Joseph S,Freeman E,Driver J

更新日期：2012-04-13 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：:We measured neural responses to local and global aspects of form and motion stimuli using frequency-tagged, steady-state visual evoked potentials (SSVEPs) combined with magnetic resonance imaging (MRI) data. Random dot stimuli were used to portray either dynamic Glass patterns (Glass, 1969) or coherent motion displays...

journal_title：Journal of vision

authors： Palomares M,Ales JM,Wade AR,Cottereau BR,Norcia AM

更新日期：2012-09-26 00:00:00

abstract：:In 1986, Paul Whittle investigated the ability to discriminate between the luminance of two small patches viewed upon a uniform background. In 1992, Paul Whittle asked subjects to manipulate the luminance of a number of patches on a uniform background until their brightness appeared to vary from black to white with ev...

journal_title：Journal of vision

authors： Kane D,Bertalmío M

更新日期：2019-01-02 00:00:00

abstract：:Activity in the primary visual cortex reduces when certain stimuli can be perceptually organized as a unified Gestalt. This reduction could offer important insights into the nature of feedback computations within the human visual system; however, the properties of this response reduction have not yet been investigated...

journal_title：Journal of vision

authors： de-Wit LH,Kubilius J,Wagemans J,Op de Beeck HP

更新日期：2012-10-22 00:00:00

abstract：:Difficulties with walking are often reported following brain damage that causes a lateralized loss of awareness on one side. Whether lateralized loss of awareness has a direct causal impact on walking is unknown. A review of the literature on visually guided walking suggests several reasons why a lateralized loss of v...

journal_title：Journal of vision

authors： Dunn MJ,Rushton SK

更新日期：2018-09-04 00:00:00

abstract：:The human fovea lies at the center of the retina and supports high-acuity vision. In normal visual system development, the highest acuity is correlated with both a high density of cone photoreceptors in the fovea and a magnified retinotopic representation of the fovea in the visual cortex. Both cone density and the co...

journal_title：Journal of vision

authors： Woertz EN,Wilk MA,Duwell EJ,Mathis JR,Carroll J,DeYoe EA

更新日期：2020-06-03 00:00:00

abstract：:A 2D perspective image of a slanted rectangular object is sufficient for a strong 3D percept. Two computational assumptions that could be used to interpret 3D from images of rectangles are as follows: (1) converging lines in an image are parallel in the world, and (2) skewed angles in an image are orthogonal in the wo...

journal_title：Journal of vision

authors： Saunders JA,Backus BT

更新日期：2007-04-13 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：:Changes to the visual environment can happen at many timescales, from very transient to semi-permanent. To adapt optimally, the visual system also adjusts at different timescales, with longer-lasting environmental changes producing longer-lasting effects, but how the visual system adapts in this way remains unknown. H...

journal_title：Journal of vision

authors： Bao M,Fast E,Mesik J,Engel S

更新日期：2013-08-26 00:00:00

abstract：:This study focused on the potential role of incidental, auditory perceptual learning in among children learning new words. To this end, we examined how irrelevant auditory similarities across words, that provide no cues regarding their visual or conceptual attributes, influence pseudo-word learning in a name/picture m...

journal_title：Journal of vision

authors： Banai K,Nir B,Moav-Scheff R,Bar-Ziv N

更新日期：2020-03-17 00:00:00

abstract：:Peripheral viewing is characterized by poor resolution and distortions as compared to central viewing; nevertheless, when we move our gaze around, the visual scene does not appear to change. One possible mechanism leading to perceptual uniformity would be that peripheral appearance is extrapolated based on foveal info...

journal_title：Journal of vision

authors： Toscani M,Gegenfurtner KR,Valsecchi M

更新日期：2017-08-01 00:00:00

abstract：:We used biased random-dot dynamic test stimuli to measure the strength of the motion aftereffect (MAE) to evaluate the usefulness of this technique as a measure of motion adaptation strength. The stimuli consisted of noise dots whose individual directions were random and of signal dots moving in a unique direction. Al...

journal_title：Journal of vision

authors： Castet E,Keeble DR,Verstraten FA

更新日期：2002-01-01 00:00:00

abstract：:We present a computational-observer model of the human spatial contrast-sensitivity function based on the Image Systems Engineering Toolbox for Biology (ISETBio) simulation framework. We demonstrate that ISETBio-derived contrast-sensitivity functions agree well with ones derived using traditional ideal-observer approa...

journal_title：Journal of vision

authors： Cottaris NP,Jiang H,Ding X,Wandell BA,Brainard DH

更新日期：2019-04-01 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：: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：:Human brains are finite, and thus have bounded capacity. An efficient strategy for a capacity-limited agent is to continuously adapt by dynamically reallocating capacity in a task-dependent manner. Here we study this strategy in the context of visual working memory (VWM). People use their VWM stores to remember visual...

journal_title：Journal of vision

authors： Bates CJ,Lerch RA,Sims CR,Jacobs RA

更新日期：2019-02-01 00:00:00

abstract：:The recent history of perceptual experience has been shown to influence subsequent perception. Classically, this dependence on perceptual history has been examined in sensory-adaptation paradigms, wherein prolonged exposure to a particular stimulus (e.g., a vertically oriented grating) produces changes in perception o...

journal_title：Journal of vision

authors： Suárez-Pinilla M,Seth AK,Roseboom W

更新日期：2018-07-02 00:00:00

abstract：:Crowding is the deterioration of target identification in the presence of neighboring objects. Recent studies using appearance-based methods showed that the perceived number of target elements is often diminished in crowding. Here we introduce a related type of diminishment in repeating patterns (sets of parallel line...

journal_title：Journal of vision

authors： Yildirim FZ,Coates DR,Sayim B

更新日期：2020-04-09 00:00:00

abstract：:Recent research has established the role of objects' semantic properties in the planning of motor actions with respect to these objects. It has been shown that visual numerical magnitude affects visuomotor control in a similar direction to the effect of physical size: The larger the numerical value, the larger the gri...

journal_title：Journal of vision

authors： Namdar G,Ganel T

更新日期：2015-01-01 00:00:00