PSY 250 Lecture Notes - Lecture 8: Frequency Analysis, Inner Ear, Hindbrain
30 Jul 2018
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Document Summary
The auditory system processes sound for identification, localization and communication. E. effects of damage to the auditory system: sound and ear. Number of sound pulses in a second, in hertz (hz) How many cycles of the wave per second. Higher pitch higher frequency (vice versa) When it gets more complex it becomes richer. Doppler shift: changes in perceived pitch due to movement e. g. , siren. Outer ear, middle ear (ossicles) and inner ear: functions. (i) function of the outer ear assists localization, deciding how well you can collect the sound. Sound is air particles being compressed at different frequency and complexity and is hitting the eardrum. Sound pressure changes the eardrum, moves back and forth, activates the middle ear. (ii) function of the middle ear amplification. Consists of the malleus, incus, and stapes (ear bones) Stapes is the smallest bone in the body. Middle ear needs to be amplified for the inner ear.
