Abstract:
:Subjects develop a preferred retinal locus of fixation (PRL) under simulation of central scotoma. If systematic relocations are applied to the stimulus position, PRLs manifest at a location in favor of the stimulus relocation. The present study investigates whether the induced PRL is transferred to important visual tasks in daily life, namely pursuit eye movements, signage reading, and text reading. Fifteen subjects with normal sight participated in the study. To develop a PRL, all subjects underwent a scotoma simulation in a prior study, where five subjects were trained to develop the PRL in the left hemifield, five different subjects on the right hemifield, and the remaining five subjects could naturally chose the PRL location. The position of this PRL was used as baseline. Under central scotoma simulation, subjects performed a pursuit task, a signage reading task, and a reading-text task. In addition, retention of the behavior was also studied. Results showed that the PRL position was transferred to the pursuit task and that the vertical location of the PRL was maintained on the text reading task. However, when reading signage, a function-driven change in PRL location was observed. In addition, retention of the PRL position was observed over weeks and months. These results indicate that PRL positions can be induced and may further transferred to everyday life visual tasks, without hindering function-driven changes in PRL position.
journal_name
J Visjournal_title
Journal of visionauthors
Barraza-Bernal MJ,Rifai K,Wahl Sdoi
10.1167/17.14.2subject
Has Abstractpub_date
2017-12-01 00:00:00pages
2issue
14issn
1534-7362pii
2665166journal_volume
17pub_type
杂志文章abstract::A key challenge for the visual system is to extract constant object properties from incoming sensory information. This information is ambiguous because the same sensory signal can arise from many combinations of object properties and viewing conditions and noisy because of the variability in sensory encoding. The comp...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/16.3.38
更新日期:2016-01-01 00:00:00
abstract::The position of a saccade target can be encoded in gaze-centered coordinates, that is, relative to the current gaze position, or in object-centered coordinates, that is, relative to an object in the environment. We tested the role of gaze-centered and object-centered coding in a double-step saccade task involving the ...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/16.14.12
更新日期:2016-11-01 00:00:00
abstract::Amblyopia results in a severe loss of positional information and in the ability to accurately enumerate objects (V. Sharma, D. M. Levi, & S. A. Klein, 2000). In this study, we asked whether amblyopia also disrupts the ability to track a near-threshold change in the trajectory of a single target amongst multiple simila...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/6.12.3
更新日期:2006-11-28 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
pub_type: 杂志文章
doi:10.1167/17.2.21
更新日期:2017-02-01 00:00:00
abstract::The essentially active nature of vision has long been acknowledged but has been difficult to investigate because of limitations in the available instrumentation, both for measuring eye and body movements and for presenting realistic stimuli in the context of active behavior. These limitations have been substantially r...
journal_title:Journal of vision
pub_type: 传,历史文章,杂志文章
doi:10.1167/18.4.10
更新日期:2018-04-01 00:00:00
abstract::This study examined the role of spatiotemporal feature attribution in the perception of the visual size of objects. A small or a large leading disk, a test disk of variable size, and a probe disk of a fixed size were sequentially presented at the same position for durations of 16.7 ms with interstimulus intervals of 1...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/8.8.7
更新日期:2008-06-12 00:00:00
abstract::We evaluated spatial displacement and temporal duration thresholds for discriminating the motion direction of gratings for a broad range of speeds (0.06 degrees/s to 30 degrees/s) in fovea and at +/-30 degrees eccentricity. In general, increased speed yielded lower duration thresholds but higher displacement threshold...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/9.1.30
更新日期:2009-01-22 00:00:00
abstract::A fundamental issue in visual attention is the relationship between the useful field of view (UFOV), the region of visual space where information is encoded within a single fixation, and eccentricity. A common assumption is that impairing attentional resources reduces the size of the UFOV (i.e., tunnel vision). Howeve...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/16.2.7
更新日期:2016-01-01 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
pub_type: 杂志文章
doi:10.1167/16.13.3
更新日期:2016-10-01 00:00:00
abstract::Gaze behavior during scene and object recognition can highlight the relevant information for a task. For example, salience maps-highlighting regions that have heightened luminance, contrast, color, etc. in a scene-can be used to predict gaze targets. Certain tasks, such as face recognition, result in a typical pattern...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/17.2.9
更新日期:2017-02-01 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
pub_type: 杂志文章
doi:10.1167/9.11.7
更新日期:2009-10-06 00:00:00
abstract::We investigated how the visual-motor system recruits a novel visual feedback cue for a manual control task. We presented conditions in which an arbitrary cue (color) was coupled with task-relevant feedback (position or velocity), and measured the effect of the novel cue on performance. Participants used a joystick to ...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/9.10.9
更新日期:2009-09-10 00:00:00
abstract::Given the inherent difference in judgment required to complete visual detection and identification tasks, it is unknown whether task selection differentially affects visual performance as a function of development. The aim of the present study is therefore to systematically assess and contrast visual performance using...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/12.6.4
更新日期:2012-06-01 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
pub_type: 杂志文章
doi:10.1167/11.2.6
更新日期:2011-02-08 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
pub_type: 杂志文章
doi:10.1167/14.12.12
更新日期:2014-10-13 00:00:00
abstract::Conventional magnetic resonance imaging (MRI) is useful for assessing morphological changes but not for assessing deformations inside homogeneous structures (M. D. Abràmoff, A. P. Van Gils, G. H. Jansen, & M. P. Mourits, 2000). Since no intrinsic contrast can be imaged for distinguishing heterogeneous patterns of musc...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/7.14.5
更新日期:2007-11-21 00:00:00
abstract::We previously showed that different types of aberration defocus, coma, and secondary astigmatism affect reading performance via different mechanisms. In this paper, we show the contrary result that, for identification of isolated letters, the effects of rendering different types of aberration can be described by a sin...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/13.7.12
更新日期:2013-06-20 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
pub_type: 杂志文章
doi:10.1167/10.12.8
更新日期:2010-10-01 00:00:00
abstract::The visual system utilizes environmental features to direct gaze efficiently when locating objects. While previous research has isolated various features' contributions to gaze guidance, these studies generally used sparse displays and did not investigate how features facilitated search as a function of their location...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/16.2.3
更新日期:2016-01-01 00:00:00
abstract::In 1986, Paul Whittle investigated the ability to discriminate between the luminance of two small patches viewed upon a uniform background. In 1992, Paul Whittle asked subjects to manipulate the luminance of a number of patches on a uniform background until their brightness appeared to vary from black to white with ev...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/19.1.16
更新日期:2019-01-02 00:00:00
abstract::Early visual processing analyses fine and coarse image features separately. Here we show that motion signals derived from fine and coarse analyses are combined in rather a surprising way: Coarse and fine motion sensors representing the same direction of motion inhibit one another and an imbalance can reverse the motio...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/7.12.8
更新日期:2007-09-20 00:00:00
abstract::It is debated whether different forms of bistable perception result from common or separate neural mechanisms. Binocular rivalry involves perceptual alternations between competing monocular images, whereas ambiguous figures such as the Necker cube lead to alternations between two possible pictorial interpretations. Pr...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/4.7.2
更新日期:2004-07-01 00:00:00
abstract::Most models of visual search are based on the intuition that humans choose fixation locations containing features that best match the features of the target. The optimal version of this feature-based strategy is what we term "maximum a posteriori (MAP) search." Alternatively, humans could choose fixations that maximiz...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/8.3.4
更新日期:2008-03-07 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
pub_type: 杂志文章
doi:10.1167/14.8.6
更新日期:2014-07-03 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
pub_type: 杂志文章
doi:10.1167/15.1.4
更新日期:2015-01-08 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
pub_type: 杂志文章
doi:10.1167/8.3.14
更新日期:2008-03-18 00:00:00
abstract::Deep convolutional neural networks (CNNs) trained on visual objects have shown intriguing ability to predict some response properties of visual cortical neurons. However, the factors (e.g., if the model is trained or not, receptive field size) and computations (e.g., convolution, rectification, pooling, normalization)...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/jov.20.7.21
更新日期:2020-07-01 00:00:00
abstract::Previous studies have shown that an odd-colored target among uniformly colored distractors can be rapidly detected and localized using broadly distributed attention over an entire display. In the current study, we show that such a broadly distributed attentional allocation is not sufficient for seemingly effortless go...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/6.9.11
更新日期:2006-08-30 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
pub_type: 杂志文章
doi:10.1167/17.6.7
更新日期:2017-06-01 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
pub_type: 杂志文章
doi:10.1167/9.4.21
更新日期:2009-04-24 00:00:00