| Literature DB >> 7278178 |
Abstract
The acoustic reflex threshold (ART) was studied in 544 ears having hearing levels (ANSI-1969) ranging from 0 to 110 dB HL. The activating signals were pure tones (500, 1000, and 2000 Hz) presented at levels up to 125 dB HL. The results indicated that the ART increased with hearing loss beyond certain levels. The proportion of absence of reflex responses depends upon the degree of hearing loss, test frequency, and the limits imposed by the instrumentation. Absence of reflex responses is rare for hearing losses of less than about 80 dB HL when the hearing loss is attributable to cochlear involvement.Entities:
Mesh:
Year: 1981 PMID: 7278178 DOI: 10.1044/jshd.4603.312
Source DB: PubMed Journal: J Speech Hear Disord ISSN: 0022-4677