Nonlinear responses of a nonlinear cochlear model with the function of an outer hair cell model

Y. Murakami, M. Unoki

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

1 Citation (Scopus)

Abstract

To investigate how outer hair cells (OHCs) produce compressive nonlinearity in both the cochlear I/O function and tuning curve for a single tone, we present a nonlinear cochlear model with a nonlinear OHC model. In modeling cochlea filtering, we modeled somatic motility as a function of OHCs and the interaction between the basilar membrane and somatic motility through the tectorial membrane as mechanoelectrical transducer networks. The parameter values of the model were set to the estimates for human data. Signal frequencies of 0.125, 0.25, 0.5, 1, 2, 3, 4, and 6 kHz were used in the simulations of cochlear filtering. The results revealed that this model can account for the compressive nonlinearity in both the I/O functions and tuning curves of a cochlea obtained from the experiments. They also suggest that the somatic motility depending on the transducer currents produces nonlinearities in the I/O functions and tuning curves of cochlea.

Original languageEnglish
Title of host publicationConcepts and Challenges in the Biophysics of Hearing - Proceedings of the 10th International Workshop on the Mechanics of Hearing, MoH 2008
EditorsNigel P. Cooper, David T. Kemp
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages343-349
Number of pages7
ISBN (Electronic)9789812833778
DOIs
Publication statusPublished - 2008
Externally publishedYes
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
Country/TerritoryUnited Kingdom
CityNewcastle
Period7/27/087/31/08

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Biomedical Engineering

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