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Masking Release for Speech in Subjects With Temporal Lobe Resections
John K. Cullen, Jr., MSEE;
Carl L. Thompson, PhD
Arch Otolaryngol. 1974;100(2):113-116.
Abstract
Four subjects with resections involving the superior temporal gyrus were tested in a binaural release-from-masking experiment using consonant-nucleus-consonant words as the signal. The amount of release for S No and SoN conditions was measured in terms of percent improvement in articulation scores relative to articulation scores for SoNo conditions.
Measured release for subjects who had had temporal lobectomy and data obtained from 14 normal controls tested with identical protocols were contrasted. The degree of release shown by each of the subjects with lesions was within 1 standard deviation of that measured for normals for both SNo and SoN conditions. We concluded that release from masking for speech in persons with unilateral sections involving auditory association cortex does not differ from that observed in normals. In addition, we suggest a possible role for auditory association cortex in the speech perception process.
Author Affiliations
From the Kresge Hearing Research Laboratory of the South, Department of Otorhinolaryngology, Louisiana State University Medical Center, New Orleans. Dr. Thompson is now with the Department of Speech Pathology and Audiology, University of Houston.
Footnotes
Accepted for publication Oct 10, 1973.
Reprint requests to 1100 Florida Ave, Bldg 164, New Orleans, LA 70119 (J. Cullen).
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