MIT9_14S09_prob24

MIT9_14S09_prob24 - 9.14, MIT, Spring 2009 Classes #24-25...

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9.14, MIT, Spring 2009 Classes #24-25 Questions based on Schneider chapter and on lectures: 1. Instinctive aversive behavior in response to loud noise, and learned fear responses to specific sounds, depend on different ascending connections. Contrast the connections. 2. What are the major functional requirements of a predator’s auditory system that led to the evolution of two major ascending auditory system pathways? Where do these pathways terminate? 3. How is impedance matching achieved in the transfer of sound vibrations from air to fluid? 4. How is a “place code” used for encoding of sound frequency information? Describe the apparatus at the level of the periphery and of the secondary sensory neurons. 5. Describe how spatial summation and convergence are used in the detection of sound locations. 6. Where does information about location of sounds and sights converge in the CNS? What happens if the auditory and visual maps get out of register? 7. How are the maps of neocortical areas very similar in the visual system and the auditory system?
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MIT9_14S09_prob24 - 9.14, MIT, Spring 2009 Classes #24-25...

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