WK 4 L1 and L2 sensation and perception- hearing

Question 1

Sound waves

Answer 1

Amplitude, frequency and complexity

Question 2

Amplitude

Answer 2

perception related to amplitude= loudness, measured in decibels

Question 3

Frequency

Answer 3

measured in cycles per second/ hertz, perception related to freq= pitch

Question 4

Complexity

Answer 4

perception related to purity= timbre

Question 5

Ear

Answer 5

converts sound pressure into neural signals

Question 6

3 divisions of the ear

Answer 6

outer, middle and inner

Question 7

outer ear

Answer 7

pinna, auditory canal and ear drum

Question 8

Pinna

Answer 8

external part of the ear, sound collecting cone

Question 9

Auditory/ear canal

Answer 9

protects ear drum

Question 10

ear drum

Answer 10

tight membrane that vibrates in response to sound waves

Question 11

Middle ear

Answer 11

Ossicles- hammer, anvil and stirrup

Question 12

Hammer, anvil and stirrup

Answer 12

3 small bones that transmit ear drum vibrations to the inner ear, have an amplifying effect

Question 13

inner ear

Answer 13

cochlear

Question 14

Cochlear

Answer 14

fluid filled, coiled tunnel that contains receptors for hearing. Ossicles pass vibrations to oval window which generates pressure waves in liquid inside cochlear

Question 15

Basilar membrane

Answer 15

contains auditory receptors/ hair cells

Question 16

Theories of hearing

Answer 16

place theory and frequency theory

Question 17

place theory

Answer 17

perception of pitch corresponds to the vibrations of different portions/places of the basilar membrane

Question 18

frequency theory

Answer 18

perception of pitch corresponds to the rate at which the basilar membrane vibrates