Auditory Dysfunction Accompanying Noise-Induced Hearing Loss Two groups of 16 young male subjects with normal low- and midfrequency hearing were compared on a series of audiometric measures. One group was composed of subjects with 12- to 24-month histories of noise exposure and hearing loss at 4000 Hz greater than 40 dB; the other group was composed ... Articles
Articles  |   August 01, 1976
Auditory Dysfunction Accompanying Noise-Induced Hearing Loss
 
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Article Information
Articles   |   August 01, 1976
Auditory Dysfunction Accompanying Noise-Induced Hearing Loss
Journal of Speech and Hearing Disorders, August 1976, Vol. 41, 374-380. doi:10.1044/jshd.4103.374
History: Received May 16, 1975 , Accepted November 3, 1975
 
Journal of Speech and Hearing Disorders, August 1976, Vol. 41, 374-380. doi:10.1044/jshd.4103.374
History: Received May 16, 1975; Accepted November 3, 1975

Two groups of 16 young male subjects with normal low- and midfrequency hearing were compared on a series of audiometric measures. One group was composed of subjects with 12- to 24-month histories of noise exposure and hearing loss at 4000 Hz greater than 40 dB; the other group was composed of normal-hearing subjects with no history of unusual noise exposure. On fixed-frequency Bekesy audiometry at 2000 Hz, 12 of the noise-exposed subjects demonstrated separation of 5 dB or more between pulsed- and continuous-tone tracings; similar separation occurred for only one of the non-noise-exposed subjects. Significant between-group differences also occurred on three tests of speech discrimination: PB-50 word lists and CID W-22 lists presented with two forms of competing noise.

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