Summary
International Symposium on Nonlinear Theory and its Applications
2008
Session Number:B3L-D
Session:
Number:B3L-D3
Synchronization of Model Neurons to AM Auditory Stimuli
Stefan Martignoli, Ruedi Stoop,
pp.-
Publication Date:2008/9/7
Online ISSN:2188-5079
Summary:
Auditory nerve fibers transmit very precise timing information about incoming sound-waves from the inner hair cells (IHC) of the cochlea to the auditory nuclei of the brain. In this study, we investigate the response of a three-component model cochlea-IHC-auditory nerve. We show that the temporal and spectral characteristics of auditory nerve responses to amplitude-modulated (AM) tones reproduce biophysical measurements, and are a consequence of the synchronization of neurons upon the driving signal. To show the robustness and generality of this phenomenon, we investigate the Arnold tongues corresponding to a neuron model with stable limit-cycle dynamics driven by a sinusoidal. Finally, we discuss the contribution of the cochlear nonlinearities on the form of the resulting spiking patterns.