Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Transient-evoked otoacoustic emissions as a measure of noise-induced threshold shift
Autore:
Marshall, L; Heller, LM;
Indirizzi:
USN, Submarine Med Res Lab, Groton, CT 06349 USA USN Groton CT USA 06349USN, Submarine Med Res Lab, Groton, CT 06349 USA
Titolo Testata:
JOURNAL OF SPEECH LANGUAGE AND HEARING RESEARCH
fascicolo: 6, volume: 41, anno: 1998,
pagine: 1319 - 1334
SICI:
1092-4388(199812)41:6<1319:TOEAAM>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
MIDDLE-EAR PRESSURE; EXPOSURE; HUMANS;
Keywords:
temporary threshold shift (TTS); otoacoustic emissions; noise-induced hearing loss; hearing conservation; transient-evoked otoacoustic emissions; click-evoked otoacoustic emissions (TEOAE, TOAE, COAE);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Marshall, L USN, Submarine Med Res Lab, Box 900,Subase NLON, Groton, CT 06349 USA USN Box 900,Subase NLON Groton CT USA 06349 oton, CT 06349 USA
Citazione:
L. Marshall e L.M. Heller, "Transient-evoked otoacoustic emissions as a measure of noise-induced threshold shift", J SPEECH L, 41(6), 1998, pp. 1319-1334

Abstract

Otoacoustic emissions and behavioral hearing thresholds were measured before and after exposure to a 10-min, 105-dB SPL, half-octave band of noise centered at 1.414 kHz. Along a single recovery function, transient-evoked otoacoustic-emission (TEOAE) measurements made with 74-dB pSPL nonlinear clickensembles were alternated with a Bekesy threshold-tracking procedure. Eachof the 14 participants with normal hearing underwent 2 hour-long temporary-threshold shift (TTS) sessions as well as 2 pretest sessions and a posttest session. The Bekesy test Frequency was fixed at 2.0 kHz, whereas emissions were analyzed in half octave bandwidths with center frequencies ranging from 0.707 to 5.656 kHz. Results showed that (a) the maximum temporary emission shifts (TES) were half to 1 octave above the exposure frequency; (b) the 4.7-dB average temporary emission shift magnitude at approximately 2 min postexposure was less than half of the 1 1.7-dB average TTS; (c) the average recovery times for emissions and hearing thresholds were similar (188 vs.186 min); and (d) the average TTS magnitude along the recovery function was predictable from TES magnitude. It is concluded that both TEOAEs and Bekesy thresholds reveal the same aspects of postexposure inner-ear changes.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 00:28:18