quiz 6

Question 1

A ‘melody schema’ can be used to increase the likelihood of perceptually grouping tones associated with a particular known melody. This is best seen as an example of the ________________ grouping heuristic.

Answer 1

effect of past experience

Question 2

Research on gerbils has found that neurons in the left hemisphere of the brain respond best to sounds coming from the right, while neurons in the right hemisphere of the brain respond best to sound coming from the left. The ratio of these left-sensitive and right-sensitive ITD neuron responses can be used to indicate the general location of an auditory object in space. This is an example of what kind of coding?

Answer 2

distributed coding

Question 3

Interaural level difference is a _________ cue referring to the ___________________________.

Answer 3

binaural; difference in sound intensities received at each ear.

Question 4

What type of cues would be most useful for localizing a sound by elevation?

Answer 4

spectral cues

Question 5

The Jeffress Model for narrowly tuned ITD neurons is best characterized as falling within Marr’s ___________ level, while the finding of narrowly tuned ITD neurons in the barn owl is best characterized as an example of the _____________ level.

Answer 5

algorithmic; implementational

Question 6

Which of the following structures have been found to contain narrowly tuned ITD neurons in barn owls?

Answer 6

• Superior olivary nucleus - Inferior Colliculus – It is interesting that multiple areas in the auditory processing path are responsive to ITD cues. Perhaps the ITD cues are used in different ways at different processing levels?

Question 7

____________ is the ability to sense the movement of your body and limbs in space.

Answer 7

Kinesthesis

Question 8

As you’re walking home from the grocery store carrying multiple heavy bags of groceries, you begin to notice that one of the bags is starting to slip out your hands. Which mechanoreceptor is likely responsible for helping you detect this movement?

Answer 8

Meissner corpuscles

Question 9

Using only ILD and ITD cues, which points in the image below would provide identical cue information and be unhelpful for sound localization?

Answer 9

Points A and B

Points C and D