Central Auditory System
How is it that these spike-like signals from thousands of cochlear nerve fibers eventually enable the organism to perceive the myriad sounds of the environment? Auditory signals must present nearly as complex a problem for processing as visual patterns, since they are highly transitory in nature and cover a huge dynamic range. Perhaps for this reason, the auditory brainstem itself seems a complicated network. A highly simplified scheme showing at least the basic serial path traversed by impulses that originate at the cochlea appears in Fig. 19. It is indeed the simplest of portrayals, since at each level not only are there many parallel connections within that level, but in addition connections to other, non-auditory areas become important.
KeywordsInferior Colliculus Cochlear Nucleus Interaural Time Difference Medial Geniculate Body Oriented Reflex
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