Section 3: Chapter 10.3-10.4

Question 1

Pitch is maintained between the cochlea and the primary auditory cortex in what matter?

Answer 1

Tonotopic

Question 2

How do we hear very low frequencies below where the sensitivity of the basilar membrane allows?

Answer 2

By rate of firing of bipolar cells; higher rate = higher frequency and vice versa

Question 3

How do we detect loudness?

Answer 3

High amplitude sound waves move hair cells more, causing more NT release onto bipolar cells and a therefore a higher rate of firing of bipolar cells

Question 4

How do we detect location of both high and low frequency sounds?

Answer 4

Neural circuits compute the interaural time difference at low frequencies, and the interaural intensity difference at high frequencies (acoustic shadow of the head)

Question 5

What structure is associated with calculating the ITD?

Answer 5

Medial superior olivary complex

Question 6

What structure is associated with calculating IID?

Answer 6

Lateral superior olivary complex

Question 7

Which hemisphere processes music?

Answer 7

Right

Question 8

Which hemisphere processes language?

Answer 8

Left

Question 9

Function of the ventral cortical pathway for audition

Answer 9

decoding spectrally complex sounds - auditory object recognition

Question 10

Function of the dorsal auditory stream of audition

Answer 10

Integration of auditory and somatosensory info to control speech production - audition for action

Question 11

Broca’s area is responsible for

Answer 11

Speech production

Question 12

Wernicke’s area is responsible for

Answer 12

Language comprehension

Question 13

Inability to speak or comprehend language

Answer 13

Aphasia

Question 14

Inability to speak fluently despite having normal comprehension

Answer 14

Broca’s aphasia

Question 15

Inability to understand or produce meaningful language, but can produce intact words

Answer 15

Wernicke’s aphasia

Question 16

Stimulation of A1 produces

Answer 16

Simple tones

Question 17

Stimulation of wernicke’s are produces

Answer 17

Interpretation of a sound (ie buzzing sound like crickets)

Question 18

Listening passively to noise bursts activates?

Answer 18

A1 in left hemisphere (speech); and Heschl’s gyrus in right hemisphere (music)

Question 19

Listening to words activates?

Answer 19

Wernicke’s area (posterior speech area)

Question 20

Listening to phonetic discrimination activates?

Answer 20

Broca’s area (frontal speech region)

Question 21

Making relative pitch judgements activates

Answer 21

Right frontal lobe

Question 22

Perception of melody triggers major activation in?

Answer 22

The right-hemisphere auditory cortex in front of Heschel’s gyrus

Question 23

A disorder of impaired musical processing, perception, and recognition

Answer 23

Amusia