Oculometric assessment of dynamic visual processing.

abstract：:A horizontally moving grating viewed within a diamond-shaped aperture can be made to appear to move obliquely by introducing appropriate depth-ordering cues (R. O. Duncan, T. D. Albright, & G. R. Stoner, 2000). It is commonly assumed that the depth cues in such displays determine which line terminators are seen as int...

journal_title：Journal of vision

authors： van der Smagt MJ,Stoner GR

更新日期：2008-02-20 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：:Apparent duration can be manipulated in a local region of visual field by long-term adaptation to motion or flicker (Johnston, Arnold, & Nishida, 2006). These effects show narrow spatial tuning (Ayhan, Bruno, Nishida, & Johnston, 2009), as well as retinotopic position dependency (Bruno, Ayhan, & Johnston, 2010), suppo...

journal_title：Journal of vision

authors： Gulhan D,Ayhan I

更新日期：2019-05-01 00:00:00

abstract：:We studied the role of native astigmatism and ocular aberrations on best-focus setting and its shift upon induction of astigmatism in 42 subjects (emmetropes, myopes, hyperopes, with-the-rule [WTR] and against-the-rule [ATR] myopic astigmats). Stimuli were presented in a custom-developed adaptive optics simulator, all...

journal_title：Journal of vision

authors： Marcos S,Velasco-Ocana M,Dorronsoro C,Sawides L,Hernandez M,Marin G

更新日期：2015-08-01 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：:Experimental data on the accuracy and frequency of saccades are incorporated into a model of the visual world and eye movements to determine the spatial distribution of visual objects on the retina. Visual scenes are represented as sequences of discrete small objects whose positions are initially uniformly distributed...

journal_title：Journal of vision

authors： Lewis A,Garcia R,Zhaoping L

更新日期：2003-12-29 00:00:00

abstract：:When two verniers are presented in rapid succession at the same location, feature fusion occurs. Instead of perceiving two separate verniers, participants typically report perceiving one fused vernier, whose offset is a combination of the two previous verniers, with the later one slightly dominating. Here, we examined...

journal_title：Journal of vision

authors： Hochmitz I,Lauffs MM,Herzog MH,Yeshurun Y

更新日期：2018-06-01 00:00:00

abstract：:We used fMRI to examine the neural correlates of subjective reversals for bistable structure-from-motion. We compared transparent random-dot kinematograms depicting either a cylinder rotating in depth or two flat surfaces translating in opposite directions at apparently different depths. For both such stimuli, the mot...

journal_title：Journal of vision

authors： Freeman ED,Sterzer P,Driver J

更新日期：2012-06-29 00:00:00

abstract：:Bayesian cue combination models have been used to examine how human observers combine information from several cues to form estimates of linear quantities like depth. Here we develop an analogous theory for circular quantities like planar direction. The circular theory is broadly similar to the linear theory but diffe...

journal_title：Journal of vision

authors： Murray RF,Morgenstern Y

更新日期：2010-09-01 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：: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：:Computational models of spatial vision typically make use of a (rectified) linear filter, a nonlinearity and dominant late noise to account for human contrast discrimination data. Linear-nonlinear cascade models predict an improvement in observers' contrast detection performance when low, subthreshold levels of extern...

journal_title：Journal of vision

authors： Goris RL,Wagemans J,Wichmann FA

更新日期：2008-11-24 00:00:00

abstract：:Knowledge of target features can guide attention in many conjunction searches in a top-down manner. For example, in search of a red vertical line among blue vertical and red horizontal lines, observers can guide attention toward all red items and all vertical items. In typical conjunction searches, distractors often f...

journal_title：Journal of vision

authors： Utochkin IS,Khvostov VA,Wolfe JM

更新日期：2020-08-03 00:00:00

abstract：:Reading speed in normal peripheral vision is slow but can be increased through training on a letter-recognition task. The aim of the present study is to investigate the sensory and cognitive factors responsible for this improvement. The visual span is hypothesized to be a sensory bottleneck limiting reading speed. Thr...

journal_title：Journal of vision

authors： He Y,Legge GE,Yu D

更新日期：2013-06-24 00:00:00

abstract：:We measured binocular and monocular depth thresholds for objects presented in a real environment. Observers judged the depth separating a pair of metal rods presented either in relative isolation, or surrounded by other objects, including a textured surface. In the isolated setting, binocular thresholds were greatly s...

journal_title：Journal of vision

authors： McKee SP,Taylor DG

更新日期：2010-08-01 00:00:00

abstract：:Horizontal information was recently suggested to be crucial for face identification. In the present paper, we expand on this finding and investigate the role of orientations for all the basic facial expressions and neutrality. To this end, we developed orientation bubbles to quantify utilization of the orientation spe...

journal_title：Journal of vision

authors： Duncan J,Gosselin F,Cobarro C,Dugas G,Blais C,Fiset D

更新日期：2017-12-01 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：:We evaluated the ability of emmetropic and myopic observers to detect and discriminate blur across the retina under monocular or binocular viewing conditions. We recruited 39 young (23-30 years) healthy adults (n = 19 myopes) with best-corrected visual acuity 0.0 LogMAR (20/20) or better in each eye and no binocular o...

journal_title：Journal of vision

authors： Maiello G,Walker L,Bex PJ,Vera-Diaz FA

更新日期：2017-05-01 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：:We tested identification of target letters surrounded by a varying number (2, 4, 6) of horizontally aligned flanking elements. Strings were presented left or right of a central fixation dot, and targets were always at the center of the string. Flankers could be other letters, digits, symbols, simple shapes, or false f...

journal_title：Journal of vision

authors： Chanceaux M,Mathôt S,Grainger J

更新日期：2014-11-10 00:00:00

abstract：:Color is commonly described in terms of the three perceptual attributes-hue, saturation, and brightness-of which only hue has a qualitative nature, saturation and brightness being of a quantitative nature. A possible reason for such a phenomenological structure of the color manifold, and its geometric representation, ...

journal_title：Journal of vision

authors： Logvinenko AD

更新日期：2015-01-14 00:00:00

abstract：:Early visual processing is surprisingly flexible even in the adult brain. This flexibility involves both long-term structural plasticity and online adaptations conveyed by top-down feedback. Although this view is supported by rich evidence from both human behavioral studies and invasive electrophysiology in nonhuman m...

journal_title：Journal of vision

authors： Herde L,Uhl J,Rauss K

更新日期：2020-06-03 00:00:00

abstract：:The role of target typicality in a categorical visual search task was investigated by cueing observers with a target name, followed by a five-item target present/absent search array in which the target images were rated in a pretest to be high, medium, or low in typicality with respect to the basic-level target cue. C...

journal_title：Journal of vision

authors： Maxfield JT,Stalder WD,Zelinsky GJ

更新日期：2014-10-01 00:00:00

abstract：:A range of visual illusions, including the much-studied flash-lag effect, demonstrate that neural signals coding for motion and position interact in the visual system. One interpretation of these illusions is that they are the consequence of motion extrapolation mechanisms in the early visual system. Here, we study th...

journal_title：Journal of vision

authors： Johnson P,Davies S,Hogendoorn H

更新日期：2020-12-02 00:00:00

abstract：:In addition to its expected fast, additive L- and M-cone inputs (L + M), the luminance pathway has slow, spectrally opponent inputs. We have previously shown that on long-wavelength fields, the dominant slow signals change from L-M at moderate intensity levels to M-L signals at high. Here, we focus on the transition b...

journal_title：Journal of vision

authors： Stockman A,Plummer DJ

更新日期：2005-10-21 00:00:00

abstract：:Recent studies suggest that the active observer combines optic flow information with extra-retinal signals resulting from head motion. Such a combination allows, in principle, a correct discrimination of the presence or absence of surface rotation. In Experiments 1 and 2, observers were asked to perform such discrimin...

journal_title：Journal of vision

authors： Fantoni C,Caudek C,Domini F

更新日期：2010-05-01 00:00:00

abstract：:The perception of a bistable stimulus as one or the other interpretation can be biased by prior presentations of that stimulus. Such learning effects have been found to be long lasting even after small amounts of training. The effectiveness of training may be influenced by preexposure to the ambiguous stimulus. Here w...

journal_title：Journal of vision

authors： van Dam LC,Ernst MO

更新日期：2010-07-01 00:00:00

abstract：:In visual crowding, identification of a peripheral object is impaired by nearby objects. Recent studies have demonstrated that crowding is not limited only to interaction between low-level features or parts, as presumed by most models of crowding, but can also occur between high-level, configural representations of ob...

journal_title：Journal of vision

authors： Pirkner Y,Kimchi R

更新日期：2017-09-01 00:00:00

abstract：:Culture shapes how people gather information from the visual world. We recently showed that Western observers focus on the eyes region during face recognition, whereas Eastern observers fixate predominantly the center of faces, suggesting a more effective use of extrafoveal information for Easterners compared to Weste...

journal_title：Journal of vision

authors： Miellet S,Zhou X,He L,Rodger H,Caldara R

更新日期：2010-06-01 00:00:00

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