Sound/eat

Question 1

Sound

Answer 1

Pressure vs time

Peak = compression
Troughs = decompression
Pointe zero- pressure of indisturbed air

Amplitude and frequency are two changes that effect perception

Question 2

Frequency

Answer 2

Measured in hertz
Number of times a pattern of pressure repeats
1hz=1 cycle per second
Perception of pitch is related to frequency

Higher amount of cycles = higher pitch

Question 3

Cochlea

Answer 3

Fluid filled bony chamber
Vibrations move cochlea fluid
Activates basilar membrane that is filled with hair cells in corti
Hairs cells - electrical impulse - cochlear nerve - brain - sound

From cochlear nerve - brain stem- thalamus - auditory cortex

Question 4

What is the superior olive

Answer 4

An early brain stem region where input from both ears converge

Question 5

Inferior colliculus

Answer 5

A mid brain nucleus in the auditory pathway

Question 6

Medial geniculate nucleus, what does it do

Answer 6

Part of thalamus that relays info from temporal lobes to auditory cortex

Question 7

Primary auditory cortex, what do its neurons do?

Answer 7

Different neurons résine to different sounds and frequencies

Question 8

Secondary auditory cortex, what does it orocesss?

Answer 8

Harmony, rhythm, melody

Question 9

Tertiary auditory cortex, what does it integrate?

Answer 9

Integrates the variety of sounds into a whole impression

Question 10

Which fibers are responding?

Answer 10

Place code theory determines which fibers are responding to puns based on how the hair cells on basilar membrane turn on certain nerve fibers

Question 11

How fibers are firing (sound)

Answer 11

Temporal code theory is the rate or pattern of nerve impulses