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Measuring the Acoustic Reflex through the Tympanic Membrane.
Hamra, Matan; Tetin-Schneider, Simona; Shinnawi, Shadi; Cohen Vaizer, Mauricio; Yelin, Dvir.
Afiliación
  • Hamra M; Faculty of Biomedical Engineering, Technion - Israel Institute of Technology, Haifa, Israel.
  • Tetin-Schneider S; Faculty of Health Professions, Ono Academic College, Kiryat Ono, Israel.
  • Shinnawi S; Department of Otolaryngology Head and Neck Surgery, Rambam Healthcare Campus, Haifa, Israel.
  • Cohen Vaizer M; Department of Otolaryngology Head and Neck Surgery, Rambam Healthcare Campus, Haifa, Israel.
  • Yelin D; Faculty of Biomedical Engineering, Technion - Israel Institute of Technology, Haifa, Israel.
Audiol Neurootol ; : 1-12, 2024 Apr 04.
Article en En | MEDLINE | ID: mdl-38574477
ABSTRACT

INTRODUCTION:

The acoustic reflex is the active response of the middle ear to loud sounds, altering the mechanical transfer function of the acoustic energy into the inner ear. Our goal was to observe the effect of the acoustic reflex on the tympanic membrane by identifying a significant nonlinear increase in membrane oscillations.

METHODS:

By using interferometric spectrally encoded endoscopy, we record the membrane oscillations over time in response to a loud, 200-ms-long acoustic stimulus.

RESULTS:

A gradual reflex activation is measured between approximately 40 and 100 ms, manifested as a linear 42% increase in the umbo oscillation amplitude.

CONCLUSION:

The measured oscillations correlate well with those expected from a mechanical model of a damped harmonic oscillator, and the results of this work demonstrate the potential of interferometric spectrally encoded endoscopy to observe unique dynamical processes in the tympanic membrane and in the middle ear.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Audiol Neurootol Asunto de la revista: AUDIOLOGIA / PSICOFISIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Israel Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Audiol Neurootol Asunto de la revista: AUDIOLOGIA / PSICOFISIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Israel Pais de publicación: Suiza