What is second-order vision for? Discriminating illumination versus material changes.

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：:Previous research has suggested that correctly placed objects facilitate eye guidance, but also that objects violating spatial associations within scenes may be prioritized for selection and subsequent inspection. We analyzed the respective eye guidance of spatial expectations and target template (precise picture or v...

journal_title：Journal of vision

authors： Spotorno S,Malcolm GL,Tatler BW

更新日期：2015-02-10 00:00:00

abstract：:In daily life, humans interact with multiple objects in complex environments. A large body of literature demonstrates that target selection is biased toward recently attended features, such that reaches are faster and trajectory curvature is reduced when target features (i.e., color) are repeated (priming of pop-out)....

journal_title：Journal of vision

authors： McCarthy JD,Song JH

更新日期：2016-07-01 00:00:00

abstract：:Covert spatial attention increases the perceived contrast of stimuli at attended locations, presumably via enhancement of visual neural responses. However, the relation between perceived contrast and the underlying neural responses has not been characterized. In this study, we systematically varied stimulus contrast, ...

journal_title：Journal of vision

authors： Cutrone EK,Heeger DJ,Carrasco M

更新日期：2014-12-30 00:00:00

abstract：:Performance on interval timing is often explained by the assumption of an internal clock based on neural counting. According to this account, a neural pacemaker generates pulses, and the number of pulses relating to a physical time interval is recorded by a counter. Thus, the number of accumulated pulses is the intern...

journal_title：Journal of vision

authors： Rammsayer TH,Verner M

更新日期：2015-03-10 00:00:00

abstract：:Two small objects (flies) followed identical circular orbits. However, a large background that circled around behind them in different phases made one orbit look twice as large as the other (size illusion) or made the circles look like very thin horizontal or vertical ellipses with aspect ratios of 7.5:1 or more (shap...

journal_title：Journal of vision

authors： Anstis S,Casco C

更新日期：2006-09-22 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：:Progression of retinal degeneration in a mouse model was studied in vivo with high-resolution spectral-domain optical coherence tomography (SD-OCT). Imaging in 3D with high depth resolution (<3 mum), SD-OCT resolved all the major layers of the retina of control C57BL/6J mice. Images of transgenic mice having a null mu...

journal_title：Journal of vision

authors： Kim KH,Puoris'haag M,Maguluri GN,Umino Y,Cusato K,Barlow RB,de Boer JF

更新日期：2008-01-24 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：:Relatively little is known about the processes, both linear and nonlinear, by which signals are combined beyond V1. By presenting two stimulus components simultaneously, flickering at different temporal frequencies (frequency tagging) while measuring steady-state visual evoked potentials, we can assess responses to th...

journal_title：Journal of vision

authors： Cunningham DGM,Baker DH,Peirce JW

更新日期：2017-05-01 00:00:00

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：:In the occlusion illusion, a partly occluded object is perceived as though it were less occluded than it actually is (Palmer, Brooks, & Lai, 2007). We confirm and extend this finding using a stimulus with a moving occluder. In agreement with Palmer et al.'s (2007) findings and their partial-modal-completion hypothesis...

journal_title：Journal of vision

authors： Scherzer TR,Ekroll V

更新日期：2015-01-22 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：:Detection of apparent motion in random dot patterns requires correlation across time and space. It has been difficult to study the temporal requirements for the correlation step because motion detection also depends on temporal filtering preceding correlation and on integration at the next levels. To specifically stud...

journal_title：Journal of vision

authors： Bours RJ,Stuur S,Lankheet MJ

更新日期：2007-01-08 00:00:00

abstract：:Amblyopia results in a loss of visual acuity, contrast sensitivity, and position acuity. However, the nature of the neural losses is not yet fully understood. Here we report the results of experiments using noise to try to better understand the losses in amblyopia. Specifically, in one experiment we compared the perfo...

journal_title：Journal of vision

authors： Levi DM,Klein SA,Chen I

更新日期：2008-04-04 00:00:00

abstract：:Previous studies have reported that concurrent manual tracking enhances smooth pursuit eye movements only when tracking a self-driven or a predictable moving target. Here, we used a control-theoretic approach to examine whether concurrent manual tracking enhances smooth pursuit of an unpredictable moving target. In th...

journal_title：Journal of vision

authors： Niehorster DC,Siu WW,Li L

更新日期：2015-01-01 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：: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：:This paper explores the nature of the representations used for computing mean visual size of an array of visual objects of different sizes. In Experiment 1 we found that mean size judgments are accurately made even when the individual objects (circles) upon which those judgments were based were distributed between the...

journal_title：Journal of vision

authors： Joo SJ,Shin K,Chong SC,Blake R

更新日期：2009-08-19 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：:In the peripheral visual field, nearby objects can make one another difficult to recognize (crowding) in a manner that critically depends on their separation. We manipulated the apparent separation of objects using the illusory shifts in perceived location that arise from local motion to determine if crowding depends ...

journal_title：Journal of vision

authors： Dakin SC,Greenwood JA,Carlson TA,Bex PJ

更新日期：2011-08-08 00:00:00

abstract：:We report the results of three experiments in which observers judged the albedo of surfaces at different locations in rendered, three-dimensional scenes consisting of two rooms connected by a doorway. All surfaces composing the rooms were achromatic and Lambertian, and a gradient of illumination increased with depth. ...

journal_title：Journal of vision

authors： Snyder JL,Doerschner K,Maloney LT

更新日期：2005-12-15 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：:When static observers are presented with a visual simulation of forward self-motion, they generally misestimate distance travelled relative to a previously seen distant target: It has been suggested that this finding can be accounted for by a "leaky path integration" model. In the present study, using a similar experi...

journal_title：Journal of vision

authors： Bossard M,Goulon C,Mestre DR

更新日期：2016-12-01 00:00:00

abstract：:There is conflicting evidence in the literature regarding the role played by attention in perceptual learning. To further examine this issue, we independently manipulated exogenous and endogenous attention and measured the rate of perceptual learning of oriented Gabor patches presented in different quadrants of the vi...

journal_title：Journal of vision

authors： Mukai I,Bahadur K,Kesavabhotla K,Ungerleider LG

更新日期：2011-01-31 00:00:00

abstract：:Introducing blur into the color components of a natural scene has very little effect on its percept, whereas blur introduced into the luminance component is very noticeable. Here we quantify the dominance of luminance information in blur detection and examine a number of potential causes. We show that the interaction ...

journal_title：Journal of vision

authors： Sharman RJ,McGraw PV,Peirce JW

更新日期：2013-03-22 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：:When categorizing an object, we fixate our eyes on informative parts of that object. In the current study, morphed figures were used to investigate whether the interpretation of such unclear objects is reflected in the eye movement pattern. The morphed figures were created by interpolating two concrete objects. The in...

journal_title：Journal of vision

authors： Hartendorp MO,Van der Stigchel S,Hooge I,Mostert J,de Boer T,Postma A

更新日期：2013-05-14 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