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Science 6 May 1977:
Vol. 196. no. 4290, pp. 675 - 678
DOI: 10.1126/science.857318
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Articles

Science, Vol 196, Issue 4290, 675-678
Copyright © 1977 by American Association for the Advancement of Science

articles

Echo-detecting characteristics of neurons in inferior colliculus of unanesthetized bats

G Pollak, D Marsh, R Bodenhamer, and A Souther

Neurons in the inferior colliculus of echolocating bats responded well to two stimuli presented in close temporal sequence. Favorable recovery of responsiveness was seen with stimuli having durations, intensities, and interpulse intervals similar to the natural biosonar signals reaching the ears during the various phases of echolocation. Some units responded to a subthreshold simulated echo but only when preceded by a loud initial pulse. These units appear to be specialized for echo-detection.


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