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Titolo:
Nonlinear vibrations in the apex of guinea-pig cochlea
Autore:
Khanna, SM; Hao, LF;
Indirizzi:
Columbia Univ Coll Phys & Surg, Dept Otolaryngol & Head & Neck Surg, New York, NY 10032 USA Columbia Univ Coll Phys & Surg New York NY USA 10032 w York, NY 10032 USA Univ Maryland, Sch Med, Dept Otolaryngol & Head & Neck Surg, Baltimore, MD21201 USA Univ Maryland Baltimore MD USA 21201 & Neck Surg, Baltimore, MD21201 USA
Titolo Testata:
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
fascicolo: 10-13, volume: 38, anno: 2001,
pagine: 1919 - 1933
SICI:
0020-7683(200103)38:10-13<1919:NVITAO>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
OUTER HAIR-CELLS; AUDITORY-NERVE FIBERS; BASILAR-MEMBRANE; INNER-EAR; SPECTRAL CHARACTERISTICS; MECHANICAL RESPONSES; MODULATED SIGNALS; LATERAL-LINE; ORGAN; MICROSCOPE;
Keywords:
guinea pig; cochlea; Hensen's cell; mechanical vibrations; micromechanics; nonlinear waveforms; FFT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
47
Recensione:
Indirizzi per estratti:
Indirizzo: Khanna, SM Columbia Univ Coll Phys & Surg, Dept Otolaryngol & Head & Neck Surg, 630 W168th St, New York, NY 10032 USA Columbia Univ Coll Phys & Surg 630 W 168th St New York NY USA 10032
Citazione:
S.M. Khanna e L.F. Hao, "Nonlinear vibrations in the apex of guinea-pig cochlea", INT J SOL S, 38(10-13), 2001, pp. 1919-1933

Abstract

The apical turn of a living guinea-pig cochlea was opened gently and fluidcoupled to the objective lens of a confocal microscope-interferometer. Thereticular lamina was viewed through the intact Reissner's membrane. Mechanical vibrations were measured at identified cellular locations, in responseto tones applied with an acoustic transducer coupled to the ear canal. Time waveforms were measured at an outer and middle Hensen's cell over a wide intensity and frequency range. The time waveforms were distorted and the magnitude and number of harmonics in the FFTs of waveforms were high, indicating a strong nonlinearity. However, the amplitude of the fundamental component of the response increased nearly linearly with sound pressure. This paper examines the origin and the role of the nonlinear components in the cochlear function. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 12:17:35