The darker-is-deeper heuristic for the perception of 3D shape from shading: Is it perceptually or ecologically valid?

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：:An increasing number of researchers record binocular eye-tracking signals from participants viewing moving stimuli, but the majority of event-detection algorithms are monocular and do not consider smooth pursuit movements. The purposes of the present study are to develop an algorithm that discriminates between fixatio...

journal_title：Journal of vision

authors： Larsson L,Nyström M,Ardö H,Åström K,Stridh M

更新日期：2016-12-01 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：:The visual system provides a representation of what and where objects are. This entails parsing the visual scene into distinct objects. Initially, the visual system encodes information locally. While interactions between adjacent cells can explain how local fragments of an object's contour are extracted from a scene, ...

journal_title：Journal of vision

authors： Loffler G

更新日期：2015-01-01 00:00:00

abstract：:We recently demonstrated that observers are capable of encoding not only summary statistics, such as mean and variance of stimulus ensembles, but also the shape of the ensembles. Here, for the first time, we show the learning dynamics of this process, investigate the possible priors for the distribution shape, and dem...

journal_title：Journal of vision

authors： Chetverikov A,Campana G,Kristjánsson Á

更新日期：2017-02-01 00:00:00

abstract：:Previously demonstrated learning effects in shifts of transient attention have only been shown to result in beneficial effects upon secondary discrimination tasks and affect landing points of express saccades. Can such learning result in more direct effects upon perception than previously demonstrated? Observers perfo...

journal_title：Journal of vision

authors： Kristjánsson A

更新日期：2009-04-24 00:00:00

abstract：:Smooth pursuit eye movements (SP) were studied in 5- and 9-month-old infants and adults in response to a rhombus oscillating horizontally behind three spatially separated vertical occluders. During motion, the rhombus vertices were never visible. Thus the perception of the global motion of the rhombus required integra...

journal_title：Journal of vision

authors： Kochukhova O,Rosander K

更新日期：2008-08-22 00:00:00

abstract：:How does prolonged reduction in retinal-image contrast affect visual-contrast coding? Recent evidence indicates that some forms of long-term visual deprivation result in compensatory perceptual and neural changes in the adult visual pathway. It has not been established whether changes due to contrast adaptation are be...

journal_title：Journal of vision

authors： Kwon M,Legge GE,Fang F,Cheong AM,He S

更新日期：2009-02-25 00:00:00

abstract：:Magnetic Resonance Imaging was used to study changes in the crystalline lens and ciliary body with accommodation and aging. Monocular images were obtained in 15 young (19-29 years) and 15 older (60-70 years) emmetropes when viewing at far (6 m) and at individual near points (14.5 to 20.9 cm) in the younger group. With...

journal_title：Journal of vision

authors： Kasthurirangan S,Markwell EL,Atchison DA,Pope JM

更新日期：2011-03-25 00:00:00

abstract：:In simultaneous masking, flanking elements impair performance on a visual target. Previous studies on simultaneous masking have predominantly used discrimination threshold estimation to quantify performance on the target. Results based on thresholds suggest that an important factor in simultaneous masking is the stren...

journal_title：Journal of vision

authors： Hermens F,Bell A

更新日期：2014-10-27 00:00:00

abstract：:In retinotopically organized areas of the macaque visual cortex, neurons have been found that shift their receptive fields before a saccade to their postsaccadic position. This saccadic remapping has been interpreted as a mechanism contributing to perceptual stability of space across eye movements. So far, there is on...

journal_title：Journal of vision

authors： Wittenberg M,Bremmer F,Wachtler T

更新日期：2008-10-23 00:00:00

abstract：:Strategic use of advanced information about search display properties can benefit covert attentional selection. However, little work has investigated this benefit on overt selection. The present study examined how cued information impacts oculomotor selection over time and the role played by individual differences in ...

journal_title：Journal of vision

authors： Weaver MD,Paoletti D,van Zoest W

更新日期：2014-03-24 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：:Recent experiments have established that monocular areas arising due to occlusion of one object by another contribute to stereoscopic depth perception. It has been suggested that the primary role of monocular occlusions is to define depth discontinuities and object boundaries in depth. Here we use a carefully designed...

journal_title：Journal of vision

authors： Tsirlin I,Wilcox LM,Allison RS

更新日期：2010-06-01 00:00:00

abstract：:Due to the aperture problem, the initial direction of tracking responses to a translating bar is biased towards the direction orthogonal to the bar. This observation offers a powerful way to explore the interactions between retinal and extraretinal signals in controlling our actions. We conducted two experiments to pr...

journal_title：Journal of vision

authors： Bogadhi AR,Montagnini A,Masson GS

更新日期：2013-11-04 00:00:00

abstract：:Detection of low-contrast Gabor patches (GPs) is improved when flanked by collinear GPs, whereas suppression is observed for high-contrast GPs. The facilitation resembles the principles of Gestalt theory of perceptual organization. We propose a model for contour integration in the context of noise that incorporates a ...

journal_title：Journal of vision

authors： Sterkin A,Sterkin A,Polat U

更新日期：2008-07-07 00:00:00

abstract：:Psychophysical experiments have demonstrated that it is possible to simultaneously perceive binocular depth and rivalry in plaids (A. Buckthought & H. R. Wilson, 2007). Here, we used fMRI at 3T to image activity in the visual cortex while human subjects perceived depth and rivalry from plaids. Six subjects performed e...

journal_title：Journal of vision

authors： Buckthought A,Mendola JD

更新日期：2011-05-05 00:00:00

abstract：:Intuitively, extrapolating object trajectories should make visual tracking more accurate. This has proven to be true in many contexts that involve tracking a single item. But surprisingly, when tracking multiple identical items in what is known as "multiple object tracking," observers often appear to ignore direction ...

journal_title：Journal of vision

authors： Zhong SH,Ma Z,Wilson C,Liu Y,Flombaum JI

更新日期：2014-10-13 00:00:00

abstract：:We investigated the controversy regarding double training in motion discrimination learning. We collected data from 43 participants in a motion direction discrimination learning task with either double training (i.e., training plus exposure) or single training (i.e., no exposure). By pooling these data with those in t...

journal_title：Journal of vision

authors： Huang J,Liang J,Zhou Y,Liu Z

更新日期：2017-06-01 00:00:00

abstract：:Humans can estimate and encode numerosity over a large range, from very few items to several hundreds. Two distinct mechanisms have been proposed: subitizing, for numbers up to four and estimation for larger numerosities. We have recently extended this idea by suggesting that for very densely packed arrays, when items...

journal_title：Journal of vision

authors： Pomè A,Anobile G,Cicchini GM,Burr DC

更新日期：2019-06-03 00:00:00

abstract：:Visual motion information passes through several distinct stages including local motion processing in an earlier stage, followed by global motion processing at a later stage. However, the stage at which the perceptual limit of detection arises remains unknown. In order to examine which stage is critical for motion det...

journal_title：Journal of vision

authors： Takemura H,Murakami I

更新日期：2010-02-12 00:00:00

abstract：:Human observers made local orientation judgments of smoothly shaded surfaces illuminated from different directions by large area lights, both with and without visible smooth occlusion contours. Test-retest correlations between the first and second halves of the experiment revealed that observers' judgments were highly...

journal_title：Journal of vision

authors： Egan EJ,Todd JT

更新日期：2015-02-24 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：:The standard psychophysical model of our early visual system consists of a linear filter stage, followed by a nonlinearity and an internal noise source. If a rectification mechanism is introduced at the output of the linear filter stage, as has been suggested on some occasions, this model actually predicts that human ...

journal_title：Journal of vision

authors： Goris RL,Zaenen P,Wagemans J

更新日期：2008-07-10 00:00:00

abstract：:We investigated the role of gaze in encoding of object landmarks in navigation. Gaze behavior was measured while participants learnt to navigate in a virtual large-scale environment in order to understand the sampling strategies subjects use to select visual information during navigation. The results showed a consiste...

journal_title：Journal of vision

authors： Hamid SN,Stankiewicz B,Hayhoe M

更新日期：2010-10-22 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：: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：:The visual span for reading is the number of letters that can be recognized without moving the eyes and is hypothesized to impose a sensory limitation on reading speed. Factors affecting the size of the visual span have been studied using alphabet letters. There may be common constraints applying to recognition of oth...

journal_title：Journal of vision

authors： Wang H,He X,Legge GE

更新日期：2014-07-03 00:00:00

abstract：:We investigate how the population nonlinearities resulting from lateral inhibition and thresholding in sparse coding networks influence neural response selectivity and robustness. We show that when compared to pointwise nonlinear models, such population nonlinearities improve the selectivity to a preferred stimulus an...

journal_title：Journal of vision

authors： Paiton DM,Frye CG,Lundquist SY,Bowen JD,Zarcone R,Olshausen BA

更新日期：2020-11-02 00:00:00

abstract：:During visual fixation, microscopic eye movements shift the image on the retina over a large number of photoreceptors. Although these movements have been investigated for almost a century, the amount of retinal image motion they create remains unclear. Currently available estimates rely on assumptions about the probab...

journal_title：Journal of vision

authors： Cherici C,Kuang X,Poletti M,Rucci M

更新日期：2012-06-22 00:00:00