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psych U4M20

auditory input

QuestionAnswer
sound ability to pick up vibrations in air
pitch high/low frequency/cycles
decibles unit of measurement for the loudness of sounds
tympanic membrane receives soundwaves and transmits the vibrations through the ossicles to the cochlea.
middle ear/ossicles 3 bones vibrate to sound (middle ear)
oval window membrane that conducts vibrations to the cochlea.
cochlea sound waves that travel thru the cochlear fluid trigger nerve impulses
basilar membrane/organ of corti structure on the surface of the basilar membrane that has receptor cells for hearing
conductive deafness caused by damage to the mechanical system that conducts sound waves to the cochlea
sensorineural deafness caused by damage to the cochlea's receptor cells or to the auditory nerves
place theory the theory that links the pitch we hear with the place where the cochlea's membrane is stimulated
frequency theory hair cells fire at different rates in the cochlea (for low pitches)
volley theory neurons fire in sequence (more rapid impulses)
hearing direction and distance how far away and where a sound is coming from
two remedies for hearing loss? cochlear implant, hearing aid
monaural loudness of sound and changes relate to distance and direction
binaural difference of sound perceived by the 2 ears gives a cue to direction (better than monaural)
Created by: allyson.lee
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