Initiation of behavior by single neurons: the role of behavioral context

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Science  23 Nov 1984:
Vol. 226, Issue 4677, pp. 992-994
DOI: 10.1126/science.6505681


Flying crickets avoid sources of ultrasound, possibly echolocating bats, by making rapid steering movements that turn them away from the stimulus. Electrical stimulation of a single, identified sensory interneuron (Int-1) elicits avoidance steering; depressing its response to ultrasound abolishes avoidance steering. Int-1 is necessary and sufficient for this behavior but only while the cricket is in flight. Thus, the sufficiency of Int-1 for eliciting this behavior is contingent on behavioral context.

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