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15 Cards in this Set
- Front
- Back
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frequency |
number of complete wavelengths that pass a point in a given amount of time |
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pitch |
the experienced highness or lowness of a sound. depends on the frequency |
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amplitude |
loudness of a sound |
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decibels |
how we measure sounds. 0 is the absolute threshold |
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middle ear |
a piston made of the hammer, anvil, and stirrup that picks up vibrations and transmits them to the cochlea |
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cochlea |
coiled fluid filled tube in the inner ear. sound waves travelling through the fluid trigger nerve impulses |
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inner ear |
contains the cochlea, semicircular canals, and vestibular sacs. it is the innermost part of the ear |
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auditory nerve |
sends neural messages to the temporal lobe |
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sensorineural hearing loss |
hearing loss caused by damage to the auditory nerves/ cochlea's receptor cells. most common form |
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conduction hearing loss |
caused by damage to the mechanical system conducting sound waves to the cochlea. less common |
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place theory |
we hear different pitches because different sound waves trigger activity at different places along the cochlea's basilar membrane |
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frequency theory |
theory that the rate of nerve impulses travelling up the auditory nerve matches the frequency of a tone allowing us to hear it |
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place theory best explains... |
how we hear high pitches |
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frequency theory best explains... |
how we hear low pitches |
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stereophonic hearing |
we locate sounds based on which ear picks it up first |
