A Challenge to the Concept That the Auditory System Functions as a Frequency Analyzer,
AEROSPACE MEDICAL RESEARCH LAB WRIGHT-PATTERSON AFB OHIO
Pagination or Media Count:
A hypothesis is presented of auditory function as a time domain analysis. The mechanical-hydrodynamic transform of the cochlea generates a spatial distribution of displacement amplitudes as a function of time. The signal is distributed spatially so that many primary cells see essentially the same portion of the signal. The low Q and poor spatial resolution of the cochlea are an advantage because they assure a large number of cells are exposed to essentially the same input. The mural transform encodes these displacement amplitudes in the form of pulse density modulation, which preserves the signal as a time function.
- Anatomy and Physiology