In:
The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 58, No. S1 ( 1975-11-01), p. S66-S66
Abstract:
On a test of recent auditory memory [J.H. Dewson and A. Burlingame, Science 187, 267–268 (1975)], some monkeys show a severe and enduring deficit following unilateral cortical ablation of the superior temporal gyrus (“auditory association cortex”). Six such operations have been performed, an d the deficit exists in only those four instances in which the left cortical area has been removed. In two cases of unilateral ablation of the superior temporal gyrus of the right hemisphere, no performance decrements have been noted. Discrimination between very brief (2–3 msec) acoustic stimuli remains at normal (preoperative) levels for all animals regardless of the cerebral hemisphere damaged and, in general, at very short delays (less than 1 sec) on the auditory memory task, performance is maintained even by the deficient animals at their preoperative criterion levels. The deficit does not appear to depend upon the disruption specifically of either the crossed or the uncrossed ascending auditory pathway as determined by results obtained from unilaterally deafened monkeys. Preliminary investigations of the nature of the deficient recent auditory memory suggest that interference at the time of retrieval is a major element. [Work supported by NSF.]
Type of Medium:
Online Resource
ISSN:
0001-4966
,
1520-8524
Language:
English
Publisher:
Acoustical Society of America (ASA)
Publication Date:
1975
detail.hit.zdb_id:
1461063-2
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