Auditory Localization And Organization

Question 1

Azimuth

Answer 1

Left and right

Question 2

Binaural cues

Answer 2

Location cues based on comparison of signals received by both ears

Question 3

Binaural cue types

Answer 3

Interaural time difference and interaural level difference

Question 4

Monaural cues

Answer 4

Information from one ear

Question 5

Spectral cue

Answer 5

Monaural cue of localization; pinna and head affect intensities

Question 6

Auditory pathway to the cortex

Answer 6

Cochlear nucleus ➡️ superior olivary nucleus ➡️ inferior colliculus ➡️ medial geniculate nucleus ➡️ A1

Question 7

“What” stream of audition

Answer 7

Anterior portion of core and belt to prefrontal cortex

Question 8

“Where” stream of audition

Answer 8

Posterior core and belt to parietal and prefrontal cortices

Question 9

Hearing inside room experiment

Answer 9

• listener sat between two speakers
• long delay = two sounds
• short delay = one sound (precedence effect)

Question 10

Auditory scene analysis heuristics

Answer 10

1) onset time
2) location
3) similarity of timbre and pitch
4) proximity in time
5) auditory continuity

Question 11

Auditory continuity experiment

Answer 11

• tones presented interrupted by gaps
• either silence or noise
• noise condition = continued perceived sound