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aud_07_present.5pdf - X.B.3. Neural mechanisms of...

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X.B.3. Neural mechanisms of calculating target distance – FM-FM cells
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FM-FM Cells show selectivity for pulse-echo pairs 120 90 60 30 Frequency(kHz) time Response (Spikes/second) time Pulse alone echo alone Pulse and echo No response No response Big response Axis of responses FM-FM cells show selectivity form pulse echo pairs so it's not only pulse or only echo What is it in the stimulus to which the cells are responding? Does the cell require all 8 components? X.B.3.a FM-FM cells show selectivity form pulse echo pairs so it’s not only pulse or only echo time time time time
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FM-FM Cells selectivity is due solely to two FM components Response (Spikes/second) time FM3-FM4 Frequency(kHz) time 120 90 60 30 FM1-CF2 FM1-FM3 time Below is an example of an FM1-FM3 cell that only requires these two components (FM1 pulse and FM 3 echo). All other combos of pulse and echo components do not drive this cell. Some example of the many other combinations are shown in the first two columns (example FM1-FM3 cell)
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This note was uploaded on 12/10/2008 for the course NPB 100 taught by Professor Chapman during the Fall '08 term at UC Davis.

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aud_07_present.5pdf - X.B.3. Neural mechanisms of...

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