Gaze categorization under uncertainty: psychophysics and modeling.

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：:While many aspects of human vision at low light levels have been studied in great detail, motion perception has rarely been investigated so far. Here we address differential effects of light level on the perception of coherent motion, heading from radial flow, and biological motion. We determined detection thresholds ...

journal_title：Journal of vision

authors： Billino J,Bremmer F,Gegenfurtner KR

更新日期：2008-03-18 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：: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：:Visual search is slowed for cast shadows lit from above, as compared to the same search items inverted and so not interpreted as shadows (R. A. Rensink & P. Cavanagh, 2004). The underlying mechanisms for such impaired shadow processing are still not understood. Here we investigated the processing levels at which this ...

journal_title：Journal of vision

authors： Porter G,Tales A,Leonards U

更新日期：2010-03-29 00:00:00

abstract：:Temporal context, or adaptation, profoundly affects visual perception. Despite the strength and prevalence of adaptation effects, their functional role in visual processing remains unclear. The effects of spatial context and their functional role are better understood: these effects highlight features that differ from...

journal_title：Journal of vision

authors： Wissig SC,Patterson CA,Kohn A

更新日期：2013-02-06 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：:Models of object recognition generally emphasize the importance of luminance-defined shape. However, it is still not fully understood how color signals combine with luminance signals to affect object-related form processing. This electroencephalographic study aimed to examine the contribution of chromatic contrast by ...

journal_title：Journal of vision

authors： Jennings BJ,Martinovic J

更新日期：2015-01-01 00:00:00

abstract：:Contrast discrimination functions for simple gratings famously look like a dipper. Discrimination thresholds are lower than detection thresholds for moderate pedestal contrasts, and the rate of growth of thresholds as the pedestal contrast gets larger typically lies between the values implied by two popular treatments...

journal_title：Journal of vision

authors： Sanborn AN,Dayan P

更新日期：2011-12-08 00:00:00

abstract：:A series of seven experiments explored search for opaque targets among transparent distractors or vice versa. Static stimuli produced very inefficient search. With moving items, search for an opaque target among transparent distractors was quite efficient while search for transparent targets was less efficient (Experi...

journal_title：Journal of vision

authors： Wolfe JM,Birnkrant RS,Kunar MA,Horowitz TS

更新日期：2005-03-30 00:00:00

abstract：:Repetitive eye movements are known to produce motion aftereffect (MAE) when made to track a moving stimulus. Explanations typically centre on the retinal motion created in the peripheral visual field by the eye movement. This retinal motion is thought to induce perceived motion in the central test, either through the ...

journal_title：Journal of vision

authors： Freeman TC,Sumnall JH,Snowden RJ

更新日期：2003-12-05 00:00:00

abstract：:According to most models of selective visual attention, our goals at any given moment and saliency in the visual field determine attentional priority. But selection is not carried out in isolation--we typically track objects through space and time. This is not well captured within the distinction between goal-directed...

journal_title：Journal of vision

authors： Lamy DF,Kristjánsson A

更新日期：2013-07-01 00:00:00

abstract：:People are able to perceive the 3D shape of illuminated surfaces using image shading cues. Theories about how we accomplish this often assume that the human visual system estimates a single lighting direction and interprets shading cues in accord with that estimate. In natural scenes, however, lighting can be much mor...

journal_title：Journal of vision

authors： Wilder JD,Adams WJ,Murray RF

更新日期：2019-06-03 00:00:00

abstract：:Communication is critical for normal, everyday life. During a conversation, information is conveyed in a number of ways, including through body, head, and facial changes. While much research has examined these latter forms of communication, the majority of it has focused on static representations of a few, supposedly ...

journal_title：Journal of vision

authors： Cunningham DW,Wallraven C

更新日期：2009-12-07 00:00:00

abstract：:Eye movements are the most frequent (∼3/s), shortest-latency (∼150-250 ms), and biomechanically simplest (one joint, no inertial complexities) voluntary motor behavior in primates, providing a model system to assess sensorimotor disturbances arising from trauma, fatigue, aging, or disease states. We have developed a 1...

journal_title：Journal of vision

authors： Liston DB,Stone LS

更新日期：2014-12-19 00:00:00

abstract：:Traditional models of visual search such as feature integration theory (FIT; Treisman & Gelade, 1980), have suggested that a key factor determining task difficulty consists of whether or not the search target contains a "basic feature" not found in the other display items (distractors). Here we discriminate between su...

journal_title：Journal of vision

authors： Chang H,Rosenholtz R

更新日期：2016-08-01 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：:Loss of central vision can be partially compensated by increased use of peripheral vision. For example, patients experiencing central vision loss due to disease (macular degeneration) or healthy participants trained with simulated central vision loss, tend to develop eccentric fixation spots for reading or other visua...

journal_title：Journal of vision

authors： Maniglia M,Visscher KM,Seitz AR

更新日期：2020-09-02 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：:In the barber-pole illusion (BPI), a diagonally moving grating is perceived as moving vertically because of the shape of the vertically oriented window through which it is viewed-a strong shape-motion interaction. We introduce a novel stimulus-the moving barber pole-in which a diagonal, drifting sinusoidal carrier is ...

journal_title：Journal of vision

authors： Sun P,Chubb C,Sperling G

更新日期：2014-05-01 00:00:00

abstract：:Observers performed three between- and two within-category perceptual decisions with hybrid stimuli comprising low and high spatial frequency (SF) images. We manipulated (a) attention to, and (b) congruency of information in the two SF bands. Processing difficulty of the different SF bands varied across different cate...

journal_title：Journal of vision

authors： Rotshtein P,Schofield A,Funes MJ,Humphreys GW

更新日期：2010-08-24 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：: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：: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：: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：:Features of moving objects are non-retinotopically integrated along their motion trajectories as demonstrated by a variety of recent studies. The mechanisms of non-retinotopic feature integration are largely unknown. Here, we investigated the role of attention in non-retinotopic feature integration by using the sequen...

journal_title：Journal of vision

authors： Otto TU,Öğmen H,Herzog MH

更新日期：2010-10-01 00:00:00

abstract：:Perceiving three-dimensional object motion while moving through the world is hard: not only must optic flow be segmented and parallax resolved into shape and motion, but also observer motion needs to be taken into account in order to perceive absolute, rather than observer-relative motion. In order to simplify the las...

journal_title：Journal of vision

authors： Dupin L,Wexler M

更新日期：2013-02-08 00:00:00

abstract：:Humans are remarkably well tuned to the statistical properties of natural images. However, quantitative characterization of processing within the domain of natural images has been difficult because most parametric manipulations of a natural image make that image appear less natural. We used generative adversarial netw...

journal_title：Journal of vision

authors： Fruend I,Stalker E

更新日期：2018-10-01 00:00:00

abstract：:Previous contrast discrimination experiments have shown that luminance contrast is summed across ocular (T. S. Meese, M. A. Georgeson, & D. H. Baker, 2006) and spatial (T. S. Meese & R. J. Summers, 2007) dimensions at threshold and above. However, is this process sufficiently general to operate across the conjunction ...

journal_title：Journal of vision

authors： Meese TS,Baker DH

更新日期：2011-01-27 00:00:00

abstract：:In typical natural environments, the visual system receives different inputs in quick succession as gaze moves around. We examined whether local trans-saccadic differences in luminance, contrast, and orientation influenced perception and target selection in the eye movement system. Observers initially fixated a periph...

journal_title：Journal of vision

authors： Ludwig CJ,Davies JR,Gegenfurtner KR

更新日期：2012-01-01 00:00:00