| Color architecture in alert macaque cortex revealed by FMRI. | |
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MedLine Citation:
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PMID: 16400160 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The contribution that different brain areas make to primate color vision, especially in the macaque, is debated. Here we used functional magnetic resonance imaging in the alert macaque, giving a whole brain perspective of color processing in the healthy brain. We identified color-biased and luminance-biased activity and color-afterimage activity. Color-biased activity was found in V1, V2, and parts of V4 and not in V3a, MT, or other dorsal stream areas, in which a luminance bias predominated. Color-biased activity and color-afterimage activity were also found in a region on the posterior bank of the superior temporal sulcus. We review anatomical and physiological studies that describe this region, PITd, and postulate that it is distinct from areas V4 and TEO. When taken together with single-unit studies and lesion studies, our results suggest that color depends on a connected ventral-stream pathway involving at least V1, V2, V4, and PITd. |
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Authors:
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Bevil R Conway; Doris Y Tsao |
Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't Date: 2005-12-28 |
Journal Detail:
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Title: Cerebral cortex (New York, N.Y. : 1991) Volume: 16 ISSN: 1047-3211 ISO Abbreviation: Cereb. Cortex Publication Date: 2006 Nov |
Date Detail:
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Created Date: 2006-09-27 Completed Date: 2006-11-07 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 9110718 Medline TA: Cereb Cortex Country: United States |
Other Details:
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Languages: eng Pagination: 1604-13 Citation Subset: IM |
Affiliation:
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Department of Neurobiology, Harvard Medical School, Boston, MA 02115, USA. bconway@hms.harvard.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Cerebral Cortex / anatomy & histology*, physiology* Color Perception / physiology* Data Interpretation, Statistical Macaca mulatta Magnetic Resonance Imaging Male Models, Neurological Nerve Net / physiology Oxygen / blood Photic Stimulation Stereotaxic Techniques Visual Cortex / anatomy & histology, physiology |
| Grant Support | |
ID/Acronym/Agency:
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EY 16187/EY/NEI NIH HHS |
| Chemical | |
Reg. No./Substance:
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7782-44-7/Oxygen |
| Comments/Corrections | |
Erratum In:
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Cereb Cortex. 2006 Dec;16(12):1820 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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