Laterality for stereognostic accuracy of children for words, shapes, and bigrams: a sex difference for bigrams

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Science  29 Jun 1979:
Vol. 204, Issue 4400, pp. 1432-1434
DOI: 10.1126/science.451575


Children identified nonsense shapes by touch better with their left hand and words better with their right hand. Bigrams were processed by boys as shapes and by girls as words, which suggests a sexual dimorphism of brain functioning for bigrams. A relative specialization of the hemisphere for stereognostic processing is also suggested, since the accuracy of identification by both hands was greater than chance for all three types of stimuli.