PSYCH261 Lecture Notes - Lecture 12: Hair Cell, Cochlea, Endolymph
28 Nov 2015
School
Department
Course
Professor
Document Summary
Segment of the basal membrane that has hair cells that specifically responsive to particular frequency of sound. Entire basilar membrane vibrates in synchrony with the sound (causing neural impulses which are in synchrony with the sound) Idea of low frequency is best explained by frequency theory. Volley principle (as you increase the frequency of the sound, there is no single neuron that can fire at every peak of the wave, combination of neurons) High frequency best explained by place theory. Have cells that can detect motion of sound. Damage doesn"t necessarily cause deafness (don"t lose all consciousness of. Important for auditory imagery sounds, only the complex sounds) Different parts of the cortex that is organized into different frequencies of sounds. Even a small difference in time of the arrival of sound in each ear, it has a good temporal resolution. Sound being reflected (small/ less intense sound)
