DYSPHASIA IN LEFT-HANDED PATIENTS WITH UNILATERAL BRAIN LESIONS

Abstract
Five left-sided and five right-sided cases of unilateral brain lesion in naturally left-handed patients showed dysphasia in all left-sided cases and in all but one right-sided case. Dysphasic symptoms were more severe in the former group but defects of calculation more severe in the latter. Doubt is cast on the validity of the current idea that "brainedness," with regard to language function, is located in the cerebral hemisphere contralateral to the "handedness" of the individual.