PMID: 6671391Dec 1, 1983

rCBF for middle-aged males and females during right-left discrimination

Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
H J HannayJ H Halsey


rCBF was measured in 10 male and 10 female normal righthanders with an average age of 44.2 years. For the measures f1 and IS significant occipital lobe activation was produced bilaterally and for the measure IS significant left hemisphere parietal activation was produced also by a visually presented right-left discrimination cognitive activation task over and above the activation produced by a sensorimotor control task. The amount and pattern of blood flow changes were similar for both sexes. Performance of males on the cognitive task was not significantly better than that of females. However, an inverse relationship was found for males but not females between cognitive task performance and percentage increase in IS for all regions showing significant cognitive activation.


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Related Concepts

Vigilance, Cortical
Cerebrovascular Circulation
Discrimination Learning
Hemispheric Specialization
Form Perception
Occipital Lobe
Parietal Lobe
Psychomotor Performance

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