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Titolo:
Insights into linear and nonlinear cochlear transduction: Application of anew system-identification procedure on transient-evoked otoacoustic emissions data
Autore:
Krishnan, G; Chertoff, ME;
Indirizzi:
Carnegie Mellon Univ, Dept Comp Sci, Pittsburgh, PA 15213 USA Carnegie Mellon Univ Pittsburgh PA USA 15213 ci, Pittsburgh, PA 15213 USA UnivKSansas, Med Ctr, Sch Allied Hlth, Dept Speech & Hearing, Kansas City,Univ Kansas Kansas City KS USA Hlth, Dept Speech & Hearing, Kansas City,
Titolo Testata:
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
fascicolo: 2, volume: 105, anno: 1999,
parte:, 1
pagine: 770 - 781
SICI:
0001-4966(199902)105:2<770:IILANC>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
ACOUSTIC DISTORTION PRODUCTS; GUINEA-PIG; AUDITORY-SENSITIVITY; EFFERENT SYSTEM; HEARING-LOSS; HAIR-CELLS; EAR; STIMULATION; RESPONSES; BEHAVIOR;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Engineering, Computing & Technology
Citazioni:
48
Recensione:
Indirizzi per estratti:
Indirizzo: Krishnan, G Carnegie Mellon Univ, Dept Comp Sci, Pittsburgh, PA 15213 USA Carnegie Mellon Univ Pittsburgh PA USA 15213 gh, PA 15213 USA
Citazione:
G. Krishnan e M.E. Chertoff, "Insights into linear and nonlinear cochlear transduction: Application of anew system-identification procedure on transient-evoked otoacoustic emissions data", J ACOUST SO, 105(2), 1999, pp. 770-781

Abstract

Transient-evoked otoacoustic emissions (TEOAE) were used to characterize linear and nonlinear cochlear transduction using a new system-identificationprocedure. In this technique, a computational model of the system is firstdeveloped. From the measured stimulus and response records, spectral-density functions and multiple coherence functions are calculated, The coherencefunctions allow the characterization of linear/nonlinear processes as a function of frequency. Summations of linear and nonlinear coherences provide a goodness-of-fit of the chosen model. Finite impulse response pulses with a bandwidth of 1-8 kHz were used to evoke otoacoustic emissions. Eleven adults with normal hearing served as subjects. Third- and fifth-order polynomial models were used to model the data, and the results indicate that the fifth-order model is a better fit to the TEOAE data. The results of this study suggest that this system-identification procedure can be successfully applied to model cochlear transduction using a broadband stimulus. Most importantly, coherence functions provide useful insights into linear and nonlinear cochlear processes and have the potential to be developed as a clinical measure for monitoring changes in cochlear status. (C) 1999 Acoustical Society of America.[S0001-4966(99)0301-X].

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 12:44:48