| Color processing in macaque striate cortex: electrophysiological properties. | |
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MedLine Citation:
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PMID: 12037214 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We have shown in the accompanying paper that optical imaging of macaque striate cortex reveals patches that are preferentially activated by equiluminant chromatic gratings compared with luminance gratings. These imaged color patches are highly correlated, although not always in one-to-one correspondence, with the cytochrome-oxidase (CO) blobs. In the present study, we have investigated the electrophysiological properties of neurons in the imaged color patches and the CO blobs. Our results indicate that individual blobs tend to contain cells of only one type of color opponency: either red/green or blue/yellow. Individual imaged color patches, however, can bridge blobs of similar opponency or differing opponency. When imaged color patches contain two blobs of differing opponency, the cells in the bridge region exhibit mixed color properties that are not opponent along the two cardinal color axes (either red/green or blue/yellow). Two blobs within a single imaged color patch receive input from the same eye or from different eyes. In the latter case, the bridge region between blobs contains binocular cells that are color selective. Because the cells recorded in imaged color patches were more color selective and unoriented than cells outside of color patches, color properties appear to be organized in a clustered and segregated fashion in primate V1. |
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Authors:
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Carole E Landisman; Daniel Y Ts'o |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Journal of neurophysiology Volume: 87 ISSN: 0022-3077 ISO Abbreviation: J. Neurophysiol. Publication Date: 2002 Jun |
Date Detail:
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Created Date: 2002-05-30 Completed Date: 2002-08-06 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 0375404 Medline TA: J Neurophysiol Country: United States |
Other Details:
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Languages: eng Pagination: 3138-51 Citation Subset: IM |
Affiliation:
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The Rockefeller University, New York, New York 10021, USA. Carole_Landisman@Brown.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Brain Mapping Color Perception / physiology* Electron Transport Complex IV / analysis, physiology Electrophysiology Macaca fascicularis Neurons / enzymology Photic Stimulation Visual Cortex / physiology* Visual Fields / physiology |
| Grant Support | |
ID/Acronym/Agency:
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EY-08240/EY/NEI NIH HHS; GM-07524-15/GM/NIGMS NIH HHS |
| Chemical | |
Reg. No./Substance:
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EC 1.9.3.1/Electron Transport Complex IV |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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