Hearing Flashcards

1
Q

hearing how

A

detecting vibration through periodic changes in pressure in medium, through ear

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2
Q

what are acoustic waves

A

mechanical, low energy that stimulate sympathetic nervous system

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3
Q

weber-fechner laws

A

perception of change vs actual change in stimulus
fechner = logarithm of change
weber = new stimulus proportional to preexisting stimulus

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4
Q

3 components of ear

A
  1. outer ear
  2. middle ear
  3. inner ear
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5
Q

tympanic membrane

A

outer layer of eardrum

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6
Q

cochlea location + what it is

A

inner ear
fluid filled membrane
detects frequency

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7
Q

ossicles location

A

middle ear

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8
Q

3 bones in ossicles

A

malleus, incus, stapes

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9
Q

organ of corti

A

passes on neural transduction

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10
Q

basilar membrane

A

vibrates when waves from middle ear go through cochlear fluid

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11
Q

steps to sound

A
  1. waves collected by outer ear get amplified
  2. ossicles move
  3. water in cochlear vibrates from ossicle movement
  4. organ of corti hair cells move
  5. hair movement generates neural signals to brain stem
    6- primary auditory cortex picks up sound
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12
Q

loud noises side effects

A
  1. less gastric juice produces
  2. balance problems
  3. seeing more red
    4 . blood pressure + pulse increase
  4. headache
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13
Q

binaural hearing

A

we can sense direction + origin of sound

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14
Q

hearing adaptation

A

decrease in sensitivity of auditory receptors

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15
Q

sensory conflict theory

A

visual, somatosensory perceptions don’t match up so we feel motion sick

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16
Q

labyrinth

A

helps us balance