Document Detail

A neural model of the scintillating grid illusion: disinhibition and self-inhibition in early vision.
MedLine Citation:
PMID:  16483406     Owner:  NLM     Status:  MEDLINE    
A stationary display of white discs positioned on intersecting gray bars on a dark background gives rise to a striking scintillating effect--the scintillating grid illusion. The spatial and temporal properties of the illusion are well known, but a neuronal-level explanation of the mechanism has not been fully investigated. Motivated by the neurophysiology of the Limulus retina, we propose disinhibition and self-inhibition as possible neural mechanisms that may give rise to the illusion. In this letter, a spatiotemporal model of the early visual pathway is derived that explicitly accounts for these two mechanisms. The model successfully predicted the change of strength in the illusion under various stimulus conditions, indicating that low-level mechanisms may well explain the scintillating effect in the illusion.
Yingwei Yu; Yoonsuck Choe
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Neural computation     Volume:  18     ISSN:  0899-7667     ISO Abbreviation:  Neural Comput     Publication Date:  2006 Mar 
Date Detail:
Created Date:  2006-02-17     Completed Date:  2006-04-28     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  9426182     Medline TA:  Neural Comput     Country:  United States    
Other Details:
Languages:  eng     Pagination:  521-44     Citation Subset:  IM    
Department of Computer Science, Texas A&M University, College Station, 77843-3112, USA.
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MeSH Terms
Action Potentials / physiology
Contrast Sensitivity / physiology
Horseshoe Crabs
Illusions / physiology*
Models, Neurological
Neural Inhibition / physiology*
Neurons / physiology*
Photic Stimulation
Retina / physiology*
Synaptic Transmission / physiology
Visual Pathways / physiology*
Grant Support

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

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