Hearing 3

Question 1

Spiral Ganglion cells?

Answer 1

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Question 2

Nerve fibre sensitivity?

Answer 2

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Question 3

Frequency coding?

Answer 3

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Question 4

Tonotopic organisation of cochlea

Answer 4

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Question 5

Intensity coding?

Answer 5

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Question 6

Auditory pathway?

Answer 6

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Question 7

Hearing loss in cortex?

Answer 7

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Question 8

Cochlear nucles structure?

Answer 8

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Question 9

Where is binaural?

Answer 9

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Question 10

What does that inbred graph show?

Answer 10

o Most responses maximal with binaural stimulation

Question 11

Coincidence detector/Interaural cues

Answer 11

• in superior olivary complex, signals from auditory neurons arrive
• nerve receives inputs from two auditory nerves at same time with varying path lengths
• difference in path length gives information as to direction of sound stimuli (by differences in
arrival time)
• also differences in intensity important indication of location (biggest response from intensity when
both ears are stimulated)

Question 12

Nerve sensitivity to position?

Answer 12

Neurones are maximally responsive to sounds from certain positions? graph?

Question 13

How is sound localisation achieved?

Answer 13

interaural time and intensity