✦ LIBER ✦

Motor program of an intersegmental reflex in crayfish

✍ Scribed by Page, Charles H. ;Jones, Kenneth A.

Publisher: John Wiley and Sons
Year: 1982
Tongue: English
Weight: 332 KB
Volume: 219
Category: Article
ISSN: 0022-104X
DOI: 10.1002/jez.1402190116

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✦ Synopsis

Abstract

Flexion of a merocarpal joint of a single leg initiates a discharge of the efferent neurons that produces postural abdominal extension in the crayfish. This intersegmental reflex is characterized by the excitation of those efferents whose effects are synergistic to extension, and the incomplete suppression of those efferents that are extensor antagonists. Comparison of the latencies and discharge patterns that are generated in response to leg flexion with those produced during “command fiber” stimulation suggests that this intersegmental reflex is mediated by the activation of more than one “command fiber” interneuron.

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