FM-FM Cells show selectivity for pulse-echo pairs120)X.B.3.a FM-FM cells show selectivity form pulse echo pairs so it’s not only pulse or only echo9060quency(kHz)30Freqsecond)timetimetimeRespons(Spikes/sectimetimePulse aloneecho alonePulse and echoAxis of responsestimeNo responseNo responseBig responseFM FM cells shoselecti itform p lse echo pairs so it's not onlp lse or onlechoFM-FM cells show selectivity form pulse echo pairs so it's not only pulse or only echoWhat is it in the stimulus to which the cells are responding?Does the cell require all 8 components?
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FM-FM Cells selectivity is due solely to two FM components(example FM1-FM3 cell)X.B.3.b. FM-FM cells selectivity is due to only two FM components (example FM1-FM3 cell)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. Someexample of the many other combinations are shown in the first two columnsFM3-FM4(kHz)12090FM1-CF2FM1-FM3Frequency(6030esponsees/second)Re(SpiketimetimetimeOnly responds when FM1 and FM3 are present with the correct delayWhat is it in the stimulus to which the cells are responding?