Electrical Stimulation Of Sites Research Articles

Gastric motor activity during feeding induced by stimulation of the lateral hypothalamus in the rat.

Electrical stimulation of sites in the lateral hypothalamic feeding area of conscious rats elicited stimulus-bound feeding. Stimulation of the same sites when food was not available produced changes in gastric motility which depended on the initial state of gastric activity. If the stomach was active, gastric motility was inhibited; if it was quiescent, gastric motility was activated. In every case, however, a marked activation of gastric motility occurred after stimulation. Feeding behavior and concomitant changes in gastric motility were accompanied by a moderate increase in arterial blood pressure. Rats which did not exhibit feeding responses on lateral hypothalamic stimulation showed a stimulus-bound inhibition of gastric motility but no poststimulatory gastric activation.

ATTACK ELICITED BY STIMULATION OF THE THALAMUS OF CATS.

Electrical stimulation of sites in the medial thalamus leads to attack upon rats. This attack summates with attack elicited by hypothalamic stimulation. Stimulation of other thalamic sites suppresses hypothalamic attack, while excitation of still others facilitates it.