Document Detail


Binocular rivalry: a time dependence of eye and stimulus contributions.
MedLine Citation:
PMID:  21047735     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In binocular rivalry, the visual percept alternates stochastically between two dichoptically presented stimuli. It is established that both processes related to the eye of origin and binocular, stimulus-related processes account for these fluctuations in conscious perception. Here we studied how their relative contributions vary over time. We applied brief disruptions to rivalry displays, concurrent with an optional eye swap, at varying time intervals after one stimulus became visible (dominant). We found that early in a dominance phase the dominant eye determined the percept by stabilizing its own contribution (regardless of the stimulus), with an additional yet weaker stabilizing contribution of the stimulus (regardless of the eye). Their stabilizing contributions declined in parallel with time so that late in a dominance phase the stimulus (and in some cases also the eye-based) contribution turned negative, favoring a perceptual (or ocular) switch. Our findings show that depending on the time, first processes related to the eye of origin and then those related to the stimulus can have a greater net influence on the stability of the conscious percept. Their co-varying change may be due to feedback from image- to eye-of-origin representations.
Authors:
Andreas Bartels; Nikos K Logothetis
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-10-01
Journal Detail:
Title:  Journal of vision     Volume:  10     ISSN:  1534-7362     ISO Abbreviation:  J Vis     Publication Date:  2010  
Date Detail:
Created Date:  2010-11-04     Completed Date:  2011-02-24     Revised Date:  2012-09-19    
Medline Journal Info:
Nlm Unique ID:  101147197     Medline TA:  J Vis     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3     Citation Subset:  IM    
Affiliation:
Centre for Integrative Neuroscience, University of Tübingen, Tübingen, Germany. andreas.bartels@tuebingen.mpg.de
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MeSH Terms
Descriptor/Qualifier:
Adult
Consciousness / physiology*
Dominance, Ocular / physiology*
Female
Form Perception / physiology*
Humans
Male
Photic Stimulation / methods
Stochastic Processes
Time Factors
Vision, Binocular / physiology*
Vision, Monocular / physiology
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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