A new method is presented for estimating cochlear tuning starting from measurements of either the transient evoked otoacoustic emission latency or the spontaneous otoacoustic emission minimal spacing. This method could be useful in obtaining indirect information about the tuning curve, particularly for subjects that, like neonates, cannot be studied with psycho-acoustical techniques. Theoretical models of the acoustic transmission along the cochlea based on the transmission line formalism predict a relation between the otoacoustic emission latency and the frequency. This relation depends on the tuning curve, i.e., the frequency dependence of the quality factor of the cochlear resonances. On the other hand, models for the generation of spontaneous emissions based on the concept of coherent scattering from cochlear random inhomogeneities imply an independent relation between the, tuning curve and the minimal frequency spacing between spontaneous emissions. In this study, experimental measurements of the otoacoustic, emission latency and of the minimal spacing between spontaneous emissions are presented. Theoretical relations are derived, which connect these two measured quantities and the tuning curve. The typically longer latency of neonates implies a higher degree of tuning at high levels of stimulation. (C) 2003 Acoustical Society of America.

Moleti, A., Sisto, R. (2003). Objective estimates of cochlear tuning by otoacoustic emission analysis. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 113(1), 423-429 [10.1121/1.1523389].

Objective estimates of cochlear tuning by otoacoustic emission analysis

MOLETI, ARTURO;
2003-01-01

Abstract

A new method is presented for estimating cochlear tuning starting from measurements of either the transient evoked otoacoustic emission latency or the spontaneous otoacoustic emission minimal spacing. This method could be useful in obtaining indirect information about the tuning curve, particularly for subjects that, like neonates, cannot be studied with psycho-acoustical techniques. Theoretical models of the acoustic transmission along the cochlea based on the transmission line formalism predict a relation between the otoacoustic emission latency and the frequency. This relation depends on the tuning curve, i.e., the frequency dependence of the quality factor of the cochlear resonances. On the other hand, models for the generation of spontaneous emissions based on the concept of coherent scattering from cochlear random inhomogeneities imply an independent relation between the, tuning curve and the minimal frequency spacing between spontaneous emissions. In this study, experimental measurements of the otoacoustic, emission latency and of the minimal spacing between spontaneous emissions are presented. Theoretical relations are derived, which connect these two measured quantities and the tuning curve. The typically longer latency of neonates implies a higher degree of tuning at high levels of stimulation. (C) 2003 Acoustical Society of America.
2003
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore FIS/07 - FISICA APPLICATA (A BENI CULTURALI, AMBIENTALI, BIOLOGIA E MEDICINA)
English
Con Impact Factor ISI
stic receivers; Acoustic wave scattering; Neonatal monitoring; Physiological models; Stimulated emission; Vibration measurement; Cochlear tuning; Acoustic emission testing; acoustics; article; auditory stimulation; automation; cochlea; evoked otoacoustic emission; frequency analyzer; mathematical analysis; methodology; priority journal; sound transmission; theoretical model; tuning curve; Adolescent; Adult; Cochlea; Cochlear Microphonic Potentials; Female; Humans; Infant, Newborn; Male; Neonatal Screening; Otoacoustic Emissions, Spontaneous; Reaction Time; Reference Values
Moleti, A., Sisto, R. (2003). Objective estimates of cochlear tuning by otoacoustic emission analysis. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 113(1), 423-429 [10.1121/1.1523389].
Moleti, A; Sisto, R
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/43627
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