Noise-Induced Hearing Loss and Presbyacusis

The effect of aging on hearing (threshold) levels at 1 000 and 4 000 Hz was investigated in war veterans who had normal hearing for their age at 1 000 Hz and considerable hearing losses at 4 000 Hz (produced by acoustic trauma or other war-time noise exposure) when first tested audiometrically. It w...

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Veröffentlicht in:Audiology 1971-01, Vol.10 (5-6), p.323-333
1. Verfasser: Macrae, J. H.
Format: Artikel
Sprache:eng
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Zusammenfassung:The effect of aging on hearing (threshold) levels at 1 000 and 4 000 Hz was investigated in war veterans who had normal hearing for their age at 1 000 Hz and considerable hearing losses at 4 000 Hz (produced by acoustic trauma or other war-time noise exposure) when first tested audiometrically. It was found that the threshold levels at both 1 000 and 4 000 Hz had increased by approximately the amounts predicted by presbyacusis curves, in spite of the hearing losses at 4 000 Hz. The results thus support the hypothesis that presbyacusis and noise-induced hearing loss are independent and additive at 4 000 Hz.
ISSN:1499-2027
0020-6091
1708-8186
DOI:10.3109/00206097109072569