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Essential Nonlinearities in Hearing

AuthorsEguíluz, Víctor M. ; Ospeck, Mark; Choe, Y.; Hudspeth, A. J.; Magnasco, Marcelo O.
Issue Date2000
PublisherAmerican Physical Society
CitationPhysical Review Letters 84: 5232- 5235 (2000)
AbstractOur hearing organ, the cochlea, evidently poises itself at a Hopf bifurcation to maximize tuning and amplification. We show that in this condition several effects are expected to be generic: compression of the dynamic range, infinitely sharp tuning at zero input, and generation of combination tones. These effects are >essentially> nonlinear in that they become more marked the smaller the forcing: there is no audible sound soft enough not to evoke them. All the well-documented nonlinear aspects of hearing therefore appear to be consequences of the same underlying mechanism.
Identifiersdoi: 10.1103/PhysRevLett.84.5232
issn: 0031-9007
Appears in Collections:(IMEDEA) Artículos
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