title: Neuronal circuit mediating escape responses in crayfish.
abstract: The neuronal circuit underlying rapid abdominal flexion in response to phasic tactile stimulation comprises identified afferents, interneurons of two orders, a decision unit, and several motor neurons. The circuit is organized hierarchically as a " cascade" in which electrical synapses predominate at higher levels. Behavioral habituation results from lability at chemical junctions early in the pathway.
mesh_terms: D000005:Abdomen / Q000294:innervation; D000818:Animals; D001369:Axons / Q000502:physiology; D003445:Crustacea; D004924:Escape Reaction; D007395:Interneurons / Q000502:physiology; D009046:Motor Neurons / Q000502:physiology; D009474:Neurons / Q000166:cytology; D009475:Neurons, Afferent / Q000502:physiology; D012677:Sensation; D009435:Synaptic Transmission