Sex Differences in Hemispheric Function: Implications from a Hemispheric Time Sharing Task

Abstract
A microcomputer controlled test of hemispheric time sharing was conducted on normal male and female students. Subjects engaged in a unimanual task involving sequential finger movement alone and in 2 conditions with concurrent cognitive activity. The verbal task interfered more with right than left hand activity in both male and female subjects. The spatial task interfered more with left than right hand activity in male subjects while female subjects did not show any hand differences. Possible sex differences in brain function were discussed.
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