[Evoked hypothalamic potentials from the pelvic nerve].

Comparative electrophysiological analysis of EPs in the posterior, tuberal and anterior hypothalamus to electrical stimulation of the pelvic nerve was performed in anesthetized and immobilized cats. The focus of maximal activity was revealed in the postero-lateral hypothalamus. "Visceral" responses of the hypothalamus evoked by the pelvic nerve stimulation had a long recovery cycle and were suppressed at a low-frequency stimulation. These findings suggest a poly-synaptic organization of the projection of pelvic afferent systems in the hypothalamus.