Hearing

Question 1

hearing how

Answer 1

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

Question 2

what are acoustic waves

Answer 2

mechanical, low energy that stimulate sympathetic nervous system

Question 3

weber-fechner laws

Answer 3

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

Question 4

3 components of ear

Answer 4

1. outer ear
2. middle ear
3. inner ear

Question 5

tympanic membrane

Answer 5

outer layer of eardrum

Question 6

cochlea location + what it is

Answer 6

inner ear
fluid filled membrane
detects frequency

Question 7

ossicles location

Answer 7

middle ear

Question 8

3 bones in ossicles

Answer 8

malleus, incus, stapes

Question 9

organ of corti

Answer 9

passes on neural transduction

Question 10

basilar membrane

Answer 10

vibrates when waves from middle ear go through cochlear fluid

Question 11

steps to sound

Answer 11

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

Question 12

loud noises side effects

Answer 12

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

Question 13

binaural hearing

Answer 13

we can sense direction + origin of sound

Question 14

hearing adaptation

Answer 14

decrease in sensitivity of auditory receptors

Question 15

sensory conflict theory

Answer 15

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

Question 16

labyrinth

Answer 16

helps us balance