Reciprocal Inhibition and Postinhibitory Rebound Produce Reverberation in a Locomotor Pattern Generator

The central pattern generator for swimming in the pteropod mollusk Clione limacina consists of at least four pedal interneurons, two each controlling parapodial upstroke and downstroke. The two sets of antagonistic interneurons are linked by reciprocal monosynaptic inhibitory synapses, and all exhib...

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Bibliographic Details
Published in:Science
Main Author: Satterlie, Richard A.
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 1985
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Online Access:http://dx.doi.org/10.1126/science.229.4711.402
https://www.science.org/doi/pdf/10.1126/science.229.4711.402
Description
Summary:The central pattern generator for swimming in the pteropod mollusk Clione limacina consists of at least four pedal interneurons, two each controlling parapodial upstroke and downstroke. The two sets of antagonistic interneurons are linked by reciprocal monosynaptic inhibitory synapses, and all exhibit apparently strong postinhibitory rebound. This simple neuronal network produces reverberating alternate cyclic activity in the absence of tonic drive or apparent feedback modulation.