[Electrophysiologic study of the cerebral control of swallowing]

Abstract

Swallowing dominant, created by serial pouring of water into rabbit's mouth cavity was tested in after-action from water supply. As a result of summation in the dominant focus of excitations elicited by stimuli of various modalities, swallowing took place. The study of swallowing dominant revealed by its stimulus which elicits its own unconditioned reflex (blinking), has shown that temporary feedback is characteristic for the dominant as well as for the conditioned reflex. Summation in the swallowing center during dominant testing by stimulation of the eye cornea takes place without conjugated inhibition of the blinking center. During discrete pouring of water into the animal's mouth, evoked potentials appear in the cortical-subcortical structures of the swallowing center. Identical potentials appear in corresponding structures before the summation swallowing. Appearance of these potentials in the electric activity of the dominant focus testifies to its readiness for summation.