Precedence effect and speech understanding in elderly listeners

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Authors
Cranford, Jerry L.
Romereim, B.
Issue Date
1992-11
Type
Article
Language
eng
Keywords
Comparative Study
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Abstract

It has been reported that many elderly persons exhibit problems in identifying the location of fused auditory images in a test of the precedence effect in sound localization. The precedence effect involves the neural integration of multiple competing binaural temporal cues, and may reflect subtle age-related neural timing or integration problems. This study investigated whether elderly persons who have difficulty with this test also exhibit problems with speech understanding. The speech measures involved a comparison of performance-intensity functions for phonetically balanced (PB) words and for synthetic sentences presented with ipsilateral speech competition (SSI-ICM). The performance of the elderly subjects on the precedence effect test was significantly correlated with the SSI-max scores but not with PB-max. These findings suggest that age-related difficulties in speech understanding may reflect, at least in part, breakdowns in auditory temporal acuity or resolution.

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The full text of this article is not available in SOAR. Check the journal record http://libcat.wichita.edu/vwebv/holdingsInfo?bibId=582442 for the paper version of the article in the library.
Citation
Journal of the American Academy of Audiology. 1992 Nov; 3(6): 405-9.
Publisher
American Academy of Audiology
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ISSN
1050-0545
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