Retrograde Propagation Mechanisms of OAEs: Slow-Wave Interpretation of the Ren et al. Experiments

摘要

Our study is a contribution to the long lasting debate of how the cochlea transmits distortions of its nonlinear amplification processes from their generation sites to the stapes. We provide evidence for a slow-wave interpretation of the Ren et al. experiments by means of numerical simulations of a nonlinear hydrodynamic model, which is basically a slow-wave cochlea model. We show that the simulations qualitatively reproduce their experiments. The analysis suggests that the measurement sites of negative phase slope of the basilar-membrane (BM) vibrations at the cubic distortion product frequency were inside the generation sites or apical to the generation sites.