Document Detail


Temporal nulling of induction from spatial patterns modulated in time.
MedLine Citation:
PMID:  16961983     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Temporally varying chromatic-inducing light was used to infer receptive-field organization. Time-varying shifts in color appearance within a test field were induced by a surrounding chromatic pattern; the shifts were then nulled by adding a time-varying stimulus to the test area so the observer perceived a steady test. This method measured chromatic induction without requiring an observer to judge the color appearance of the test. The induced color shifts were consistent with a +s/-s spatially antagonistic neural receptive field, which also accounts for color shifts induced by static chromatic patterns (Monnier & Shevell, 2003, Monnier & Shevell, 2004). The response of this type of receptive-field, which is found only in the visual cortex, increases with S-cone stimulation at its center and decreases with S-cone stimulation within its surround. The measurements also showed a negligible influence of temporal inducing frequency in the range 0.5-4 Hz.
Authors:
Florent Autrusseau; Steven K Shevell
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Visual neuroscience     Volume:  23     ISSN:  0952-5238     ISO Abbreviation:  Vis. Neurosci.     Publication Date:    2006 May-Aug
Date Detail:
Created Date:  2006-09-11     Completed Date:  2006-10-18     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8809466     Medline TA:  Vis Neurosci     Country:  England    
Other Details:
Languages:  eng     Pagination:  479-82     Citation Subset:  IM    
Affiliation:
Visual Science Laboratories, University of Chicago, Chicago, Illinois, USA. Florent.Autrusseau@univ-nantes.fr
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MeSH Terms
Descriptor/Qualifier:
Color Perception / physiology*
Humans
Optical Illusions / physiology*
Pattern Recognition, Visual / physiology*
Photic Stimulation / methods
Retinal Cone Photoreceptor Cells / physiology
Visual Fields / physiology*
Visual Pathways / physiology
Grant Support
ID/Acronym/Agency:
EY-04802/EY/NEI NIH HHS

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