Plified nonlinear outer hair cell models.
We present a consistent second-order expansion of nonlinear constitutive theories for outer hair cells. For a particular theory, we will test the validity of such a model for small variations in voltage and strain about the resting state of outer hair cells. An analysis of the various terms in the simplified nonlinear model and their relevance to outer hair cell mechanics are presented. Results show that the second-order expansion is adequate for modeling outer hair cell mechanics in a global model of the cochlea. Model predictions agree with the notion that voltage nonlinearities are the dominant ones at low sound levels in vivo.
Deo
Niranjan
N
Department of Mechanical Engineering, 2350 Hayward Avenue, University of Michigan, Ann Arbor, Michigan 48109-2125, USA. ndeo@umich.edu
Grosh
Karl
K
D001696:Biomechanical Phenomena; D003051:Cochlea / Q000502:physiology; D018072:Hair Cells, Auditory, Outer / Q000502:physiology*; D006801:Humans; D008953:Models, Anatomic; D015233:Models, Statistical; D017711:Nonlinear Dynamics; D009435:Synaptic Transmission / Q000502:physiology