Is the ability to identify deviations in multiple trajectories compromised by amblyopia?

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：:Two of the factors limiting progress in understanding the mechanisms of visual search are the difficulty of controlling and manipulating the retinal stimulus when the eyes are free to move and the lack of an ideal observer theory for fixation selection during search. Recently, we developed a method to precisely contro...

journal_title：Journal of vision

authors： Geisler WS,Perry JS,Najemnik J

更新日期：2006-08-03 00:00:00

abstract：:The static envelope of a Gabor patch with a moving sinusoidal carrier appears shifted in the direction of the carrier motion (De Valois & De Valois, 1991). This phenomenon is called motion-induced position shift. Although several motion-processing stages, ranging from low- to high-level processes, may contribute to po...

journal_title：Journal of vision

authors： Hisakata R,Hayashi D,Murakami I

更新日期：2016-10-01 00:00:00

abstract：:During observation of an ambiguous Necker cube, our percept changes spontaneously although the external stimulus does not. An EEG paradigm allowing time-resolved EEG measurement during endogenous perceptual reversals recently revealed a chain of ERP correlates beginning with an early occipital positivity at around 130...

journal_title：Journal of vision

authors： Kornmeier J,Pfäffle M,Bach M

更新日期：2011-08-24 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：:While visual size preferences regarding still objects have been investigated and linked to the "canonical size" effect-where preferred on-screen size was significantly related to objects' real-world size-the visual size preferences related to moving images of natural scenes has not been researched. In this study, we m...

journal_title：Journal of vision

authors： Harasawa M,Sawahata Y,Komine K,Shioiri S

更新日期：2020-03-17 00:00:00

abstract：:Visual crowding refers to a phenomenon whereby objects that appear in the periphery of the visual field are more difficult to identify when embedded within clutter. Pooling models assert that crowding results from an obligatory averaging or other combination of target and distractor features that occurs prior to aware...

journal_title：Journal of vision

authors： Ester EF,Zilber E,Serences JT

更新日期：2015-01-08 00:00:00

abstract：:A vast literature exists on human biological motion perception in impoverished displays, e.g., point-light walkers. Less is known about the perception of impoverished biological motion displays in macaques. We trained 3 macaques in the discrimination of facing direction (left versus right) and forward versus backward ...

journal_title：Journal of vision

authors： Vangeneugden J,Vancleef K,Jaeggli T,VanGool L,Vogels R

更新日期：2009-04-28 00:00:00

abstract：:Visual motion processing is essential to survival in a dynamic world and is probably the best-studied facet of visual perception. It has been recently discovered that the timing of brief static sounds can bias visual motion perception, an effect attributed to "temporal ventriloquism" whereby the timing of the sounds "...

journal_title：Journal of vision

authors： Kafaligonul H,Stoner GR

更新日期：2012-10-03 00:00:00

abstract：:Humans can detect multiple objects in briefly presented natural visual scenes, but the mechanisms through which the objects are segmented from the background and consciously accessed remain open. By asking participants to report how many humans natural photos presented for 50 ms contain, we show that up to three items...

journal_title：Journal of vision

authors： Railo H,Karhu VM,Mast J,Pesonen H,Koivisto M

更新日期：2016-01-01 00:00:00

abstract：:In natural vision, continuously changing input is generated by fast saccadic eye movements and slow drifts. We analyzed effects of fixational saccades, voluntary saccades, and drifts on the activity of macaque V1 neurons. Effects of fixational saccades and small voluntary saccades were equivalent. In the presence of a...

journal_title：Journal of vision

authors： Kagan I,Gur M,Snodderly DM

更新日期：2008-11-27 00:00:00

abstract：:The fovea is the retinal location responsible for our most acute vision. There are several methods used to localize the fovea, but the fovea is not always easily identifiable. Landmarks used to determine the foveal location are variable in normal subjects and localization becomes even more difficult in instances of re...

journal_title：Journal of vision

authors： VanNasdale DA,Elsner AE,Weber A,Miura M,Haggerty BP

更新日期：2009-03-25 00:00:00

abstract：:Letter discrimination performance is degraded when a letter is presented within an apparent motion (AM) trajectory of a spot. This finding suggests that the internal representation of AM stimuli can perceptually interact with other stimuli. In this study, we demonstrated that AM interference could also occur for patte...

journal_title：Journal of vision

authors： Hidaka S,Nagai M,Sekuler AB,Bennett PJ,Gyoba J

更新日期：2011-09-07 00:00:00

abstract：:Binocular rivalry occurs when an image is presented to one eye while at the same time another, incongruent, image is presented to the other eye in the corresponding retinotopic location and conscious perception alternates spontaneously between the two monocular views. If a short blank period is inserted between interm...

journal_title：Journal of vision

authors： Sandberg K,Bahrami B,Lindeløv JK,Overgaard M,Rees G

更新日期：2011-02-08 00:00:00

abstract：:The saccadic distractor effect, in which irrelevant stimuli delay saccades to target stimuli, is a popular tool for investigating saccadic competition. Here, we outline the main components of a competition framework to account for the temporal dynamics of the distractor effect, inspired by race models of saccade gener...

journal_title：Journal of vision

authors： Bompas A,Sumner P

更新日期：2009-08-28 00:00:00

abstract：:Perceiving object motion during self-movement is an essential ability of humans. Previous studies have reported that the visual system can use both visual information (such as optic flow) and non-visual information (such as vestibular, somatosensory, and proprioceptive information) to identify and globally subtract th...

journal_title：Journal of vision

authors： Xie M,Niehorster DC,Lappe M,Li L

更新日期：2020-10-01 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：: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：:There has been considerable controversy regarding whether children with autism spectrum disorder (ASD) and typically developing children (TD) show different eye movement patterns when processing faces. We investigated ASD and age- and IQ-matched TD children's scanning of faces using a novel multi-method approach. We f...

journal_title：Journal of vision

authors： Yi L,Fan Y,Quinn PC,Feng C,Huang D,Li J,Mao G,Lee K

更新日期：2013-08-08 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 three-dimensional (3-D) cluttered scenes such as foliage, deeper surfaces often are more shadowed and hence darker, and so depth and luminance often have negative covariance. We examined whether the sign of depth-luminance covariance plays a role in depth perception in 3-D clutter. We compared scenes rendered with ...

journal_title：Journal of vision

authors： Scaccia M,Langer MS

更新日期：2018-03-01 00:00:00

abstract：:The benefits of binocular vision have been debated throughout the history of vision science yet few studies have considered its contribution beyond a viewing distance of a few meters. In the first set of experiments, we compared monocular and binocular performance on depth interval estimation and discrimination tasks ...

journal_title：Journal of vision

authors： Allison RS,Gillam BJ,Vecellio E

更新日期：2009-01-13 00:00:00

abstract：:Does human vision show the contrast invariance expected of an ideal stereoscopic system for computing depth from disparity? We used random-dot stereograms to investigate the luminance contrast effect on perceived depth from disparity. The perceived depth of disparity corrugations was measured by adjusting the length o...

journal_title：Journal of vision

authors： Chen PY,Chen CC,Tyler CW

更新日期：2016-09-01 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：:Contrast response functions (CRFs) from multifocal visual-evoked potential (mfVEP) and BOLD fMRI responses were obtained using the same stimuli to test the hypothesis of a linear relationship between the mfVEP and BOLD fMRI responses. Monocular mfVEP and BOLD fMRI responses were obtained using an 8 degrees in diameter...

journal_title：Journal of vision

authors： Park JC,Zhang X,Ferrera J,Hirsch J,Hood DC

更新日期：2008-10-22 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 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：:The magnitudes of spike responses of area 17 (striate cortex, area V1) neurons to stimulation of their classical receptive fields were reduced (suppressed) when the stimuli extended into the silent surround regions. We found that when optimally oriented sine-wave drifting grating patches extended into the distant part...

journal_title：Journal of vision

authors： Wang C,Bardy C,Huang JY,FitzGibbon T,Dreher B

更新日期：2009-01-16 00:00:00

abstract：:This study investigated contrast summation over area for moving targets applied to a fixed-size contrast pedestal-a technique originally developed by Meese and Summers (2007) to demonstrate strong spatial summation of contrast for static patterns at suprathreshold contrast levels. Target contrast increments (drifting ...

journal_title：Journal of vision

authors： McDougall TJ,Dickinson JE,Badcock DR

更新日期：2018-04-01 00:00:00

abstract：:Microsaccades can elevate contrast detection thresholds of human observers and modulate the activity of neurons in monkey visual cortex. Whether microsaccades elevate contrast detection thresholds in monkey observers is not known and bears on the interpretation of neurophysiological experiments. To answer this questio...

journal_title：Journal of vision

authors： Hass CA,Horwitz GD

更新日期：2011-03-04 00:00:00