Adaptation to a simulated central scotoma during visual search training.
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TLDR
A gaze-contingent display was used to simulate an isotropic central scotoma in normal subjects while they were practicing a difficult visual search task, resulting in prolonged search reaction time, many more fixations and unorganized eye movements during search.About:
This article is published in Vision Research.The article was published on 2014-03-01 and is currently open access. It has received 50 citations till now. The article focuses on the topics: Central scotoma & Visual search.read more
Citations
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Theoretical perspectives on active sensing.
TL;DR: A framework for active sensing is presented that forms a closed loop between an ideal observer, that extracts task-relevant information from a sequence of observations, and an ideal planner which specifies the actions that lead to the most informative observations.
Reading with simulated scotomas: attending to the right is better than attending to the left
Elisabeth M. Fine,Gary S. Rubin +1 more
TL;DR: Patients with central field loss must learn to read using eccentric retina would be better off with PRL to the right of their scotoma than to the left for the purposes of reading, according to data tested.
Journal ArticleDOI
Low Vision and Plasticity: Implications for Rehabilitation
TL;DR: This review considers the levels of the visual system at which plasticity occurs, the impact of age and visual experience on plasticity, and whether plastic changes are spontaneous or require explicit training, and how plasticity may affect low-vision rehabilitation.
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A preferred retinal location of fixation can be induced when systematic stimulus relocations are applied.
TL;DR: Evaluated PRLs using a central scotoma simulation showed that systematic stimulus relocations can be used to influence the development of the PRL, which might be significant for theDevelopment of training strategies for the visually impaired.
Journal Article
Integrating oculomotor and perceptual training to induce a pseudo fovea: a model system for studying central vision loss
Rong Liu,MiYoung Kwon +1 more
TL;DR: It is demonstrated that within a relatively short time, a PRL could be induced at any intended retinal location in normally-sighted subjects with a simulated scotoma, and might not only hold promise as a model system to study the dynamic nature of the PRL formation, but also serve as a rehabilitation regimen for individuals with central vision loss.
References
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Journal ArticleDOI
The Psychophysics Toolbox.
TL;DR: The Psychophysics Toolbox is a software package that supports visual psychophysics and its routines provide an interface between a high-level interpreted language and the video display hardware.
Book ChapterDOI
Shifts in selective visual attention: towards the underlying neural circuitry.
Christof Koch,Shimon Ullman +1 more
TL;DR: This study addresses the question of how simple networks of neuron-like elements can account for a variety of phenomena associated with this shift of selective visual attention and suggests a possible role for the extensive back-projection from the visual cortex to the LGN.
Journal ArticleDOI
Feature analysis in early vision : evidence from search asymmetries
Anne Treisman,Stephen Gormican +1 more
TL;DR: The results of a series of search experiments are interpreted as evidence that focused attention to single items or to groups is required to reduce background activity when the Weber fraction distinguishing the pooled feature activity with displayscontaining a target and with displays containing only distractors is too small to allow reliable discrimination.
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Optimal eye movement strategies in visual search
Jiri Najemnik,Wilson S. Geisler +1 more
TL;DR: This work derives the ideal bayesian observer for search tasks in which a target is embedded at an unknown location within a random background that has the spectral characteristics of natural scenes and finds that humans achieve nearly optimal search performance, even though humans integrate information poorly across fixations.
Journal ArticleDOI
The spatial resolution of visual attention
TL;DR: The results suggest that the parietal area is the most likely locus of this selection mechanism and that it acts by pointing to the spatial coordinates (or cortical coordinates) of items of interest rather than by holding a representation of the items themselves.