Selective loss of complex-pitch or speech discrimination after unilateral lesion.
Twenty-eight right-handed patients who suffered a single cerebrovascular accident in the distribution of either the left or right middle cerebral artery were tested on their ability to discriminate complex-pitch and speech stimuli presented dichotically. Whereas the left hemisphere lesion group was impaired in dichotic speech but not in dichotic complex-pitch discrimination, the right hemisphere lesion group was impaired in dichotic complex pitch but not in dichotic speech discrimination. Complex-pitch phenomena may provide a useful model for the study of auditory function in the nondominant hemisphere.
Sidtis
J J
JJ
Department of Neurology, Cornell University Medical College, New York, NY.
Volpe
B T
BT
D001288:Attention; D001925:Brain Damage, Chronic / Q000523:psychology*; D002544:Cerebral Infarction / Q000523:psychology; D004292:Dominance, Cerebral; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010897:Pitch Discrimination; D013067:Speech Perception