Nonlinear dynamics of the mammalian inner ear

Bibliographic Details
Title: Nonlinear dynamics of the mammalian inner ear
Authors: Szalai, Robert, Champneys, Alan R., Homer, Martin
Publication Year: 2015
Collection: Mathematics
Physics (Other)
Quantitative Biology
Subject Terms: Physics - Biological Physics, Mathematics - Dynamical Systems, Quantitative Biology - Tissues and Organs
More Details: A simple nonlinear transmission-line model of the cochlea with longitudinal coupling is introduced that can reproduce Basilar membrane response and neural tuning in the chinchilla. It is found that the middle ear has little effect on cochlear resonances, and hence conclude that the theory of coherent reflections is not applicable to the model. The model also provides an explanation of the emergence of spontaneous otoacoustic emissions (SOAEs). It is argued that SOAEs arise from Hopf bifurcations of the transmission-line model and not from localized instabilities. The paper shows that emissions can become chaotic, intermittent and fragile to perturbations.
Comment: 9 pages, 4 figures
Document Type: Working Paper
Access URL: http://arxiv.org/abs/1505.04667
Accession Number: edsarx.1505.04667
Database: arXiv
More Details
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