Mode-locking neurodynamics predict human auditory brainstem responses to musical intervals.

摘要: The auditory nervous system is highly nonlinear. Some nonlinear responses arise through active processes in the cochlea, while others may neural populations of cochlear nucleus, inferior colliculus and higher areas. In humans, brainstem recordings reveal population to combinations pure tones, musical intervals composed complex tones. Yet biophysical origin central nonlinearities, their signal processing properties, relationship perception remain largely unknown. Both stimulus components resonances are well represented nuclei due phase-locking. Recently mode-locking, a generalization phase-locking that implies an intrinsically sound, has been observed mammalian nuclei. Here we show canonical model mode-locked oscillation predicts have human brainstem. makes predictions about different from traditional delay-based models, provide insight into nature responses. We anticipate application dynamical systems analysis will starting point for generic models dynamics, lead deeper understanding possibly arising excitatory-inhibitory networks system. This approach potential link dynamics with pitch, music, speech, development.