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Sex Differences in Task‐Dependent EEG Asymmetries
Author(s) -
Trotman Sandra C. A.,
Hammond Geoffrey R.
Publication year - 1979
Publication title -
psychophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.661
H-Index - 156
eISSN - 1469-8986
pISSN - 0048-5772
DOI - 10.1111/j.1469-8986.1979.tb01497.x
Subject(s) - lateralization of brain function , psychology , electroencephalography , laterality , task (project management) , audiology , right hemisphere , alpha (finance) , rhythm , alpha rhythm , developmental psychology , cognitive psychology , neuroscience , psychometrics , medicine , construct validity , management , economics , philosophy , aesthetics
Different patterns of lateralization of hemispheric function in the male and female brain have been proposed to account for sex differences in performance of linguistic and visuo‐spatial tasks. The present experiment was designed to determine whether task‐related asymmetries in suppression of the alpha rhythm differed between the sexes. Bilateral EEGs were recorded from 5 male and 5 female subjects while they performed 3 verbal‐numeric and 3 visuo‐spatial tasks. The proportion of right hemisphere alpha activity differed between these tasks for the male group but not for the female group. This result suggests a sex‐related difference in degree of lateralization of hemispheric function, with males having a more strict segregation of function.