Feeding evoked by electrical stimulation in collared lizards.

Feeding was evoked in collared lizards, Crotaphytus collaris, using electrical stimulation of the brain (ESB). Stimulation sites were tested in the forebrain and midbrain of 39 animals. Six stimulation loci were localized in the septal, preoptic, hypothalamic, and thalamic areas from which ESB feeding was evoked. Feeding could be elicited by ESB over several test days, but the number of feeding bouts per test session was usually low. However, several animals ate or approached food consistently when stimulated.