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Titolo:
Distortion-product otoacoustic emissions measured at high frequencies in humans
Autore:
Dreisbach, LE; Siegel, JH;
Indirizzi:
Northwestern Univ, Dept Commun Sci & Disorders, Evanston, IL 60208 USA Northwestern Univ Evanston IL USA 60208 Disorders, Evanston, IL 60208 USA
Titolo Testata:
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
fascicolo: 5, volume: 110, anno: 2001,
parte:, 1
pagine: 2456 - 2469
SICI:
0001-4966(200111)110:5<2456:DOEMAH>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
PRIMARY-TONE LEVEL; OUTER HAIR-CELLS; AUDITORY-NERVE FIBERS; CANAL STANDING WAVES; ACOUSTIC DISTORTION; BASILAR-MEMBRANE; TUNING CURVES; HUMAN ADULTS; HUMAN EAR; PTERONOTUS-PARNELLII;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Engineering, Computing & Technology
Citazioni:
72
Recensione:
Indirizzi per estratti:
Indirizzo: Dreisbach, LE San Diego State Univ, San Diego, CA 92182 USA San Diego State Univ San Diego CA USA 92182 o, CA 92182 USA
Citazione:
L.E. Dreisbach e J.H. Siegel, "Distortion-product otoacoustic emissions measured at high frequencies in humans", J ACOUST SO, 110(5), 2001, pp. 2456-2469

Abstract

Distortion-product otoacoustic emissions (DPOAEs) elicited with stimulus frequencies less than or equal to 8 kHz have been used in hearing clinics toassess whether the middle ear and cochlea are normal, but high-frequency hearing (>4 kHz) is most vulnerable to cochlear pathology. It might prove useful to measure DPOAEs with even higher frequency stimuli (>8 kHz), but there have been few reports of such studies in humans. DPOAEs have been measured in other mammals to the upper range of hearing sensitivity. The purpose of this study was to compare some characteristics of DPOAEs in human subjects elicited with high-frequency stimuli with those that have been extensively measured with lower-frequency stimuli. The primary goal was to establishif the same phenomenon responsible for the behavior of low-frequency DPOAEs is responsible for the behavior of high-frequency DPOAEs. Specifically, the DPOAE level with stimuli varied from 2 to 20 kHz, growth functions of DPOAEs, effects of varying the primary frequency ratio (f(2)/f(1)) on the DPOAE level, and DPOAE group delay were determined. Because the behaviors appeared to vary smoothly with stimulus frequency, the study suggests that emissions measured from 2 to 20 kHz were the product of the same biological process. (C) 2001 Acoustical Society of America.

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Documento generato il 04/12/20 alle ore 12:42:12