Document Detail

Cerebral lateralization and color perception: a transcranial Doppler study.
MedLine Citation:
PMID:  1572174     Owner:  NLM     Status:  MEDLINE    
Eight normal subjects were examined in dark, light and color conditions. Mean cerebral blood flow velocity (MBFV) were recorded almost simultaneously from their posterior cerebral arteries (PCA) using transcranial Doppler (TCD) ultrasound. The side-to-side difference was significant during the dark (p = 0.0159) and color stimulation (p = 0.0001) but not in light condition. This side-to-side difference in MBFV was used to characterize lateralization of color perception. This showed that the right PCA was always greater than the left during the presentation of color stimuli. Primary psychological colors (blue, yellow, red and green) induced greater lateralization as compared with color resulting from a mixed blue-green wavelength. This suggests that the right visual cortex is selectively sensitive to wavelengths.
P C Njemanze; C R Gomez; S Horenstein
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Cortex; a journal devoted to the study of the nervous system and behavior     Volume:  28     ISSN:  0010-9452     ISO Abbreviation:  Cortex     Publication Date:  1992 Mar 
Date Detail:
Created Date:  1992-06-04     Completed Date:  1992-06-04     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0100725     Medline TA:  Cortex     Country:  ITALY    
Other Details:
Languages:  eng     Pagination:  69-75     Citation Subset:  IM    
Non-invasive Neurocybernetic Flow Laboratory, Chidicon Medical Center, Owerri, Imo State, Nigeria.
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MeSH Terms
Blood Flow Velocity / physiology
Cerebral Cortex / blood supply*,  ultrasonography
Color Perception / physiology*
Dominance, Cerebral / physiology*
Regional Blood Flow / physiology
Visual Cortex / blood supply,  ultrasonography

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