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Journal of Speech and Hearing Research Vol.34 686-693 June 1991.
© American Speech-Language-Hearing Association
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Speech Identification Difficulties of Hearing-Impaired Elderly Persons

The Contributions of Auditory Processing Deficits

Larry E. Humes 1
Laurel Christopherson 1
1 Audiology Research Laboratory Department of Speech and Heanng Sciences Indiana University, Bloomington

This study examined the performance of four subject groups on several temporally based measures of auditory processing and several measures of speech identification. The four subject groups were (a) young normal-hearing adults; (b) hearing-impaired elderly subjects ranging in age from 65 to 75 years; (c) hearing-impaired elderly adults ranging in age from 76 to 86 years; and (d) young normal-hearing listeners with hearing loss simulated with a spectrally shaped masking noise adjusted to match the actual hearing loss of the two elderly groups. In addition to between-group analyses of performance on the auditory processing and speech identification tasks, correlational and regression analyses within the two groups of elderly hearing-impaired listeners were performed. The results revealed that the threshold elevation accompanying sensorineural hearing loss was the primary factor affecting the speech identification performance of the hearing-impaired elderly subjects both as groups and as individuals. However, significant increases in the proportion of speech identification score variance accounted for were obtained in the elderly subjects by including various measures of auditory processing.

KEY WORDS: speech identification, elderly, hearing impaired, auditory processing

Submitted on July 9, 1990
Accepted on September 28, 1990


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