| Dichoptic masking and binocular rivalry share common perceptual dynamics. | |
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MedLine Citation:
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PMID: 18217798 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Two of the strongest tools to manipulate visual awareness of potentially salient stimuli are binocular rivalry and dichoptic masking. Binocular rivalry is induced by presenting incompatible images to the two eyes over prolonged periods of time, leading to an alternating perception of the two images. Dichoptic masking is induced when two images are presented once in rapid succession, leading to the perception of just one of the images. Although these phenomena share some key characteristics, most notably the ability to erase from awareness potentially very salient stimuli, their relationship is poorly understood. We investigated the perceptual dynamics during long-lasting dynamic stimulation leading to binocular rivalry or dichoptic masking. We show that the perceptual dynamics during dichoptic masking conditions meet the classifiers used to classify a process as binocular rivalry; that is, (1) Levelt's 2nd proposition is obeyed; (2) perceptual dominance durations follow a gamma distribution; and (3) dominance durations are sequentially independent. We suggest that binocular rivalry and dichoptic masking may be mediated by the same inhibitory mechanisms. |
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Authors:
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Jeroen J A van Boxtel; Raymond van Ee; Casper J Erkelens |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2007-11-21 |
Journal Detail:
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Title: Journal of vision Volume: 7 ISSN: 1534-7362 ISO Abbreviation: J Vis Publication Date: 2007 |
Date Detail:
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Created Date: 2008-01-25 Completed Date: 2008-02-12 Revised Date: 2008-04-29 |
Medline Journal Info:
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Nlm Unique ID: 101147197 Medline TA: J Vis Country: United States |
Other Details:
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Languages: eng Pagination: 3.1-11 Citation Subset: IM |
Affiliation:
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Department Physics of Man, Helmholtz Institute, Utrecht University, Utrecht, The Netherlands. j.j.a.vanboxtel@phys.uu.nl |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Humans Perceptual Masking / physiology* Photic Stimulation / methods Vision Disparity / physiology* Vision, Binocular / physiology* Visual Perception / physiology* |
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