An identified neuron (CPR) evokes neuronal responses reflecting food arousal in Aplysia

Thomas Teyke, Klaudiusz R. Weiss, Irving Kupfermann

Research output: Contribution to journalArticlepeer-review

72 Scopus citations

Abstract

Feeding behavior of Aplysia is associated with an arousal state characterized by a constellation of maintained behaviors and by a potentiation or depression of responses to specific stimuli. A neuron (the cerebral-pedal regulator or CPR) that has wide-spread actions on various systems connected with feeding has been identified. CPR excites neurons that modulate or drive (i) body posture, (ii) biting, and (iii) cardiovascular behaviors. CPR also inhibits neurons concerned with defensive responses. Food stimuli, which elicit food arousal in the animal, produce prolonged excitation of the CPR. The results suggest that the CPR may evoke a central motive state representing the neuronal correlate of feeding motivation.

Original languageEnglish
Pages (from-to)85-87
Number of pages3
JournalScience
Volume247
Issue number4938
StatePublished - 5 Jan 1990
Externally publishedYes

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