NROC64H3 Lecture : NROC64 : Lec 4 : Auditory and Vestibular Systems (nearly word-for-word what was said in lecture)
Document Summary
Nroc64 : lec 4 : auditory and vestibular systems. Slide 10: auditory system, outer ear, auditory canal = amplifies certain frequencies and protects other parts of the ear, tympanic membrane (boundary btn inner and outer ear) followed by 3 ossicles and inner ear, followed by vestibular system. Work as a lever mechanism: lever = small weight can lift larger weight if fulcrum is closer to larger weight. 2nd principle that"s implemented: pressure = force / area; if you have same force but make area smaller, pressure increases. Slide 29: encoding sound intensity and frequency, encoding info about sound intensity: # of aps of a cell (firing rate of a cell) How many cells are firing (# of active neurons) Louder sound = basilar membrane gets deformed more = wider range of hair cells will respond to that and subsequent neurons will as well: stimulus frequency, tonotopy, phase locking.
