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Science 19 January 1990:
Vol. 247. no. 4940, pp. 336 - 338
DOI: 10.1126/science.2296723
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Articles

Science, Vol 247, Issue 4940, 336-338
Copyright © 1990 by American Association for the Advancement of Science

articles

Auditory association cortex lesions impair auditory short-term memory in monkeys

M Colombo, MR D'Amato, HR Rodman, and CG Gross

Department of Psychology, Rutgers, State University of New Jersey, New Brunswick 08903.

Monkeys that were trained to perform auditory and visual short-term memory tasks (delayed matching-to-sample) received lesions of the auditory association cortex in the superior temporal gyrus. Although visual memory was completely unaffected by the lesions, auditory memory was severely impaired. Despite this impairment, all monkeys could discriminate sounds closer in frequency than those used in the auditory memory task. This result suggests that the superior temporal cortex plays a role in auditory processing and retention similar to the role the inferior temporal cortex plays in visual processing and retention.


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