Differential measurement of basilar membrane vibration in sensitive gerbil cochleae

Tianying Ren, Wenxuan He

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Basilar membrane vibrations in the transverse direction were measured at two longitudinal locations using a laser interferometer. The magnitude transfer function of the cochlear partition between the two locations was obtained by calculating the ratio of the vibration magnitude at the apical location to that at the basal location as a function of the stimulus frequencies. Measured differential transfer function showed a response peak at a frequency below the best frequency of the apical location with a magnitude >1, and the minimum magnitude near the best frequency of the basal location with an amplitude as small as 0.01. These data indicate that the cochlea achieves its high sensitivity, sharp tuning, and nonlinearity through amplification and attenuation of basilar membrane vibration.

Original languageEnglish (US)
Title of host publicationConcepts and Challenges in the Biophysics of Hearing - Proceedings of the 10th International Workshop on the Mechanics of Hearing, MoH 2008
EditorsDavid T. Kemp, Nigel P. Cooper
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages113-121
Number of pages9
ISBN (Electronic)9789812833778
Publication statusPublished - Jan 1 2008
Event10th International Workshop on the Mechanics of Hearing - Concepts and Challenges in the Biophysics of Hearing, MoH 2008 - Newcastle, United Kingdom
Duration: Jul 27 2008Jul 31 2008

Publication series

NameConcepts and Challenges in the Biophysics of Hearing - Proceedings of the 10th International Workshop on the Mechanics of Hearing, MoH 2008

Conference

Conference10th International Workshop on the Mechanics of Hearing - Concepts and Challenges in the Biophysics of Hearing, MoH 2008
CountryUnited Kingdom
CityNewcastle
Period7/27/087/31/08

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ASJC Scopus subject areas

  • Biotechnology
  • Biomedical Engineering

Cite this

Ren, T., & He, W. (2008). Differential measurement of basilar membrane vibration in sensitive gerbil cochleae. In D. T. Kemp, & N. P. Cooper (Eds.), Concepts and Challenges in the Biophysics of Hearing - Proceedings of the 10th International Workshop on the Mechanics of Hearing, MoH 2008 (pp. 113-121). (Concepts and Challenges in the Biophysics of Hearing - Proceedings of the 10th International Workshop on the Mechanics of Hearing, MoH 2008). World Scientific Publishing Co. Pte Ltd.