Changes in Sensory-Cognitive Input: Effects on Cerebral Blood Flow

Eight healthy right-handed young men were subjected to local CBF measurement by [15O]water and positron emission tomography during partial sensory deprivation and during sensory-cognitive activation; physiological, hormonal, and subjective stress measurements were also performed. Results indicated t...

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Bibliographic Details
Published in:Journal of cerebral blood flow and metabolism 1990-01, Vol.10 (1), p.38-42
Main Authors: Cameron, Oliver G., Modell, Jack G., Hichwa, Richard D., Agranoff, Bernard W., Koeppe, Robert A.
Format: Article
Language:English
Subjects:
Adult
Biological and medical sciences
Blood Pressure
Catecholamines - blood
Cerebral circulation. Blood-brain barrier. Choroid plexus. Cerebrospinal fluid. Circumventricular organ. Meninges
Cerebrovascular Circulation - physiology
Cognition - physiology
Fundamental and applied biological sciences. Psychology
Humans
Male
Sensation - physiology
Statistics as Topic
Vertebrates: nervous system and sense organs
Visual Cortex - blood supply
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Summary:Eight healthy right-handed young men were subjected to local CBF measurement by [15O]water and positron emission tomography during partial sensory deprivation and during sensory-cognitive activation; physiological, hormonal, and subjective stress measurements were also performed. Results indicated that (a) “whole-brain” CBF increased during activation; (b) the greatest increase in CBF was in the primary visual cortex; (c) differences between hemispheres were not observed, but CBF was greater anteriorly than posteriorly in the deprivation condition only; (d) within-subject variability of CBF was not influenced by the sensory-cognitive condition; and (e) the procedure was not stressful.
ISSN:0271-678X
1559-7016
DOI:10.1038/jcbfm.1990.5