[Habituation in visceral systems]

Arterial blood pressure, heart rate and dynamic of neuronal activity in the cerebral cortex and medulla oblongata were selected as indices of the visceral habituation to stimulation of the splanchnic and mesenteric nerves. The habituation was more rapid in primary projection zones of the cerebral cortex rather than in the medulla oblongata nuclei and more obvious in unspecific structures of the brain (associative cortex, gigantocellular, reticular and ventral nuclei of the medulla oblongata). Evoked potentials recorded in the area S1 during long-term stimulation of the pelvic nerve revealed development of the habituation in immobilized cats.