Lecture 18

Question 1

What are the frequencies in background noise that is more heard well? Why is this?

Answer 1

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Question 2

What is the process of hearing?

Answer 2

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Question 3

What is mechanotransduction?

Answer 3

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Question 4

What do implants essentially do?

Answer 4

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Question 5

What is sensorineural hearing loss? What is the pathophysiology? What can it be caused by?

Answer 5

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Question 6

What type of hearing loss is associated with age? What kind of sounds is lost in these cases first?

Answer 6

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Question 7

How can we solve the sensorineural hearing loss?

Answer 7

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Question 8

How does a cochlear implant work? What is an example? What needs to be working in the person for the cochlear implant to be effective?

Answer 8

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Question 9

What is the schematics of the cochlear implant? What are the components?

Answer 9

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Question 10

How does the signal get through the skin barrier?

Answer 10

wasadsasd

Question 11

What is new about the modern electrodes?

Answer 11

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Question 12

What is a problem with the cochlear implants? How is this solved?

Answer 12

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Question 13

What does the body need to compensate with the cochlear implants? Why? What phases happens in the brain because of this?

Answer 13

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Question 14

What have been the methods to best represent the acoustic signal and stimulate the electrodes over the years?

Answer 14

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Question 15

What strategy was thought of around 1980 for cochlear implants?

Answer 15

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Question 16

What is the F0/F2 processor? How did it work? What was added later?

Answer 16

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Question 17

What was the level of the F0/F2 processor? Was it sufficient enough?

Answer 17

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Question 18

What strategy was though in the early 1980s for cochlear implants?

Answer 18

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Question 19

What is the Compressed Analogue stimulation strategy for cochlear implants? How does it work?

Answer 19

wsassads

Question 20

What is non-linear compression? How is it used in compressed analogue stimulation strategy?

Answer 20

sasdasd

Question 21

How many frequency channels are needed to understand speech? How is the quality of the sound? How many channels in current cochlear implants?

Answer 21

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Question 22

What is the problem with adding loads of channels in a cochlear implant?

Answer 22

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Question 23

What strategy was come up with to solve this problem in the 1990s for cochlear implants?

Answer 23

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Question 24

What is Continuous Interleaved Sampling? What was the idea behind this?

Answer 24

wsasdasd

Question 25

What are the components of the continuous interleaved sampling?

Answer 25

wsasadads

Question 26

What is the n of m approach for cochlear implants? How does it work?

Answer 26

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Question 27

What is the current research for cochlear implants working on?

Answer 27

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Question 28

What is current steering?

Answer 28

sasasdads

Question 29

What is steering parameters? How does it work? What is the benefit of using this method for cochlear implants?

Answer 29

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Question 30

What are the cochlear implants still missing? Why?

Answer 30

wsasdasd

Question 31

What are the cells involved in the temporal information in neural response? What does each cell do?

Answer 31

sasasdasd

Question 32

What points do the bushy points fire at: What is the consequence? a. f< 800Hz? b. 800Hz< f < 4KHz? f>4KHz?

Answer 32

wswasas

Question 33

What is the mechanism that is critical of perceiving pitch? Does the cochlear implant replicate this? Why?

Answer 33

sasasds

Question 34

What is Temporal information important for? Is it conveyed in cochlear implants?

Answer 34

sasad

Question 35

What is the potential method for conveying temporal information in a cochlear implant? What are the different steps?

Answer 35

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