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Relations entre la mécanique et la physiologie cochléaires

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Relations existing between the movements of the basilar membrane and the cochlear responses to acoustic stimuli have been investigated on the basis of some bibliographic results and simple models.

The use of active processes in the models can explain some particularities of the electrophysiological responses and especially the half octave shift, the behavior of the input-output curves of the nervous fibers and of the compound action potential.

Sommaire

Les relations existant entre les mouvements de la cloison cochléaire et les réponses électrophysiologiques de l'oreille interne aux stimulus sonores ont été étudiées à partir de données bibliographiques et de modèles simples.

L'introduction de mécanismes cochléaires actifs dans les modèles pourrait permettre d'expliquer certaines particularités des réponses électrophysiologiques, en particulier le décalage en fréquence des ITS (Temporary Threshold Shifts) par rapport à la stimulation, les courbes entrée-sortie des fibres nerveuses et du potentiel d'action global.

Zusammenfassung

Die Beziehungen zwischen den Bewegungen der Basilarmembran und den elektrophysiologischen Reaktionen der Cochlea bei Belastung durch Schallstimuli wurden auf der Grundlage von in der Literatur veröffentlichten Daten und einfachen Modellen untersucht.

Die Einbeziehung von aktiven cochlearen Vorgängen in die Modelle diirfte es ermöglichen, gewisse Besonderheiten der elektrophysiologischen Reaktionen zu deuten. Dies trifft besonders auf die Frequenzverschiebung der TTS-Werte in Abhängigkeit vom applizierten Stimulus, den Verlauf der Ein- und Ausgangskurven der Nervenfasern und das globale Aktionspotential des ersten Neurons zu.
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Document Type: Research Article

Publication date: October 1, 1986

More about this publication?
  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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