[The significance of feedback in accomplishing the rat hypothalamic nonapeptidergic center reaction to short-term immobilization stress].

Stress response of oxytocin- and vasopressinergic cells in the supraoptic and paraventricular centers of the hypothalamus was studied morphometrically in rats with intact hypophysis and 7 days after hypophysectomy. Severe immobilization (for 20 min.) was applied as an unspecific short-term stress.