Lecture 6-7

Question 1

What are the strategies to localize sound with two ears?

Answer 1

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Question 2

What is ITD? What does it stand for? How does it work?

Answer 2

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Question 3

What kinds of tones can be localized using ITDs? Why?

Answer 3

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Question 4

How to compute ITDs? What are the strategies?

Answer 4

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Question 5

How does the strategy to build a topographic map of space work? What are the components?

Answer 5

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Question 6

How to make detectors sensitive to the values? How to the detectors work? Where are the detectors in respect to the where the signal comes from?v

Answer 6

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Question 7

What is the Jeffress model?

Answer 7

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Question 8

What is the other strategy to compute ILDs? Who uses this strategy? Why?

Answer 8

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Question 9

How does building a distributed neuronal representation help compute ITDs?

Answer 9

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Question 10

What is ILD? How does it work?

Answer 10

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Question 11

How do the ILD and ITD converge?

Answer 11

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Question 12

What is the strategy small animals use to localise sounds with two ears?

Answer 12

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Question 13

What is an example of sound localisation hyper-acuity in a tiny animal?

Answer 13

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Question 14

How does the female fly Ormia ochracea localise the cricket sound? Why?

Answer 14

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Question 15

What experiment was done to replicate this? What was found out from this experiment?

Answer 15

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Question 16

What is the fly’s ear structure? What are the two vibration modes?

Answer 16

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Question 17

What biomimetic application has come out of this?

Answer 17

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Question 18

What is the fly-ear inspired sensor? How does it work? How to detect the pivoting motion?

Answer 18

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Question 19

Where does it have potential applications?

Answer 19

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Question 20

What is used in robotic sound localisation? How does it work?

Answer 20

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Question 21

What is echolocation? What is it important for?

Answer 21

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Question 22

What frequency is used for echolocation? Why?

Answer 22

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Question 23

What is the difference between bats and dolphin in the frequency?

Answer 23

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Question 24

What are the signals involved in echolocation in a bat when finding out the location of a prey? What features are identified and how?

Answer 24

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Question 25

What is an animal that can detect an electromagnetic field? Why does it need to detect this?

Answer 25

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Question 26

How does the animal detect the electric field? What are the components involved?

Answer 26

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Question 27

How was this property exploited for human use?

Answer 27

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Question 28

What can other fish do in addition to detecting electric field? What is the use to this?

Answer 28

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Question 29

What are examples of fish which produce electrical charge? How did this develop in evolution? What are the different types?

Answer 29

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Question 30

What are the properties of the electric field that the weekly electric fish produce?

Answer 30

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Question 31

How does the fish use the ability to create electric field? What is it used for? What are the properties?

Answer 31

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Question 32

What does polarity show? What does amplitude show?

Answer 32

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Question 33

How does the transdermal potential and afferent fibres' firing rate change in response to stimulus in a fish detecting a target using an electric field?

Answer 33

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Question 34

How are the electric fish parallel with sound localisation? What does it detect? What are the different receptors?

Answer 34

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Question 35

What is a biomimetic medical device that is inspired by such electric fish? What is it's function? How does it work?

Answer 35

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Question 36

What is stochastic resonance? What are the components?

Answer 36

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Question 37

How much noise to add? Why?

Answer 37

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Question 38

What is another method to explain stochastic resonance?

Answer 38

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Question 39

What was an experiment done to show stochastic resonance in nature? What animal was used?

Answer 39

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Question 40

What variable did they change? What did they measure? What were the results?

Answer 40

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