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NEUROLOGY 1987;37:1385
© 1987 American Academy of Neurology

Cerebral dominance, sex, and callosal size inMRI

Andrew Kertesz, MD, Marsha Polk, MA, Janice Howell, MA and Sandra E. Black, MD

Department of Clinical Neurological Sciences, University of Western Ontario, St. Joseph's Hospital Research Institute, London, Ontario, Canada.

We measured the MRI area of corpus callosum in 104 normal adults, 51 men, 53 women, 52 right- and 52 left-handers. There were no significant sex or handedness differences. Callosal areas did not correlate with brain size nor with measures of lateralization for hand performance, dichotic listening, or visual field preference. The results are contrary to the notion of increased callosal connectivity in left-handers, women, or individuals with less-lateralized function.

Address correspondence and reprint requests to Dr. Kertesz, St. Joseph's Hospital Research Institute, London, Ontario, Canada N6A 4V2.

Supported by the Medical Research Council grant MA8907.

Received September 2, 1986. Accepted for publication in final form November 6, 1986.




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