[The role of the paraventricular hypothalamic nuclei in the development of chronic neurogenic hypertension and the formation of a self-stimulation reaction].

Effects of bilateral electric lesion of the hypothalamic paraventricular nuclei on cardiovascular components of the defense response and on the self-stimulation operant behaviour, were studied in rats. Overloading of the highest nervous activity induced no hypertension in these animals, though the self-stimulation frequency increased.