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Sex Differences

Paul Bakan, PhD; William Putnam

Arch Neurol. 1974;30(4):334-335.

Abstract
To determine whether there is a sex difference in the ability to make right-left discriminations, a group form of the Culver Lateral Discrimination Test was administered to 400 university undergraduates. Subjects looked at slide projections of right or left body parts and were required to identify the body part as right or left. Performance of right-handed women was significantly poorer than that of right-handed men, and the same trend was found for left-handed subjects. There was no significant difference between right- and left-handed subjects on the test. The results are discussed in terms of a sex difference in degree of functional asymmetry between the right and left cerebral hemispheres, and it is suggested that the female brain has less hemispheric functional asymmetry.

Author Affiliations
Burnaby, British Columbia, Canada

From the Department of Psychology, Simon Fraser University, Burnaby, British Columbia.

Footnotes
Accepted for publication Dec 10, 1973.

Reprint requests to Department of Psychology, Simon Fraser University, Burnaby 2, British Columbia, Canada (Dr. Bakan).

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