Cochlear model with three-dimensional fluid, inner sulcus and feed-forward mechanism.
A three-dimensional model of the guinea pig cochlea using the phase-integral method is presented. This model incorporates the viscous fluid effects in the cochlea, dimensional and material property variation along the cochlear duct and the active feed-forward mechanism of the outer hair cells. Two degrees of freedom of the basilar membrane are considered, which results in two traveling waves propagating along the duct for a given frequency. Basilar membrane response with the active feed-forward mechanism compares favorably with published experimental measurements.
Steele
C R
CR
Mechanics and Computation Division, Stanford University, Stanford, Calif. 94305-4040, USA. chasst@leland.stanford.edu
Lim
K M
KM
D000161:Acoustic Stimulation; D000818:Animals; D001489:Basilar Membrane / Q000502:physiology; D001826:Body Fluids / Q000502:physiology; D003051:Cochlea / Q000033:anatomy & histology* / Q000502:physiology*; D006168:Guinea Pigs; D008953:Models, Anatomic; D008954:Models, Biological