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Titolo:
Intracochlear acoustic pressure measurements: Transfer functions of the middle ear and cochlear mechanics
Autore:
Magnan, P; Dancer, A; Probst, R; Smurzynski, J; Avan, P;
Indirizzi:
Univ Auvergne, Biophys Lab, Clermont Ferrand, France Univ Auvergne Clermont Ferrand France hys Lab, Clermont Ferrand, France Inst Franco Allemand Rech, St Louis, France Inst Franco Allemand Rech St Louis France lemand Rech, St Louis, France Univ Basel, Kantonsspital, HNO Klin, CH-4031 Basel, Switzerland Univ Basel Basel Switzerland CH-4031 NO Klin, CH-4031 Basel, Switzerland
Titolo Testata:
AUDIOLOGY AND NEURO-OTOLOGY
fascicolo: 3-4, volume: 4, anno: 1999,
pagine: 123 - 128
SICI:
1420-3030(199905/08)4:3-4<123:IAPMTF>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
GUINEA-PIG; BASILAR-MEMBRANE; EMISSIONS; RESPONSES; TONES;
Keywords:
middle ear; transfer function; cochlear mechanics; otoacoustic emission; intracochlear pressure; cochlear microphonic potential;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Magnan, P French German Res Inst St Louis, POB 34, F-68301 St Louis, France French German Res Inst St Louis POB 34 St Louis France F-68301
Citazione:
P. Magnan et al., "Intracochlear acoustic pressure measurements: Transfer functions of the middle ear and cochlear mechanics", AUDIOL NEUR, 4(3-4), 1999, pp. 123-128

Abstract

Direct intracochlear acoustic pressure recordings (from 20 to 20,000 Hz) are used to measure the middle-ear transfer functions (forward and reverse) and to better understand the cochlear mechanics in the guinea pig. In the forward direction, the middle-ear transfer function is strongly dependent onthe frequency and presents a maximum of +30 dB at 1,000 Hz (bulla open). In the reverse direction, the middle-ear transfer function looks like an ideal reverse middle-ear pressure transformer with -35 dB gain and 0 degrees phase lag from 20 to 8,000 Hz (bulla open, closed ear canal). Passive cochlear mechanics is studied with the help of intracochlear pressure measurements and differential cochlear microphonic potential recordings in the different turns.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 07:00:01