Hearing vis-a-vis Vision The interface: converts input to neural signals – Vision: the retina – Hearing: the organ of Corti (in the cochlea) Number of neurons involved – The retina has 100 million receptor cells Optic nerve has over 1,000,000 fibers – The organ of corti has 14,000 receptor cells Auditory nerve has 32.000 fibers Localizing the stimuli – Fairly obvious for vision – There is no way for one ear to know where the vibrations are coming from 14