[Dynamics of cardiovascular functions in rats in the presence of the emotional reactions of self stimulation and avoidance].

Dynamics of arterial pressure and heart-rate was compared during positive and negative emotional reactions caused by stimulation of emotiogenic areas of hypothalamus in unrestrained rats. It was shown that negative emotional reactions as a rule are accompanied by development of hypertensive dynamics in arterial pressure leading to arterial hypertension. During positive emotional reactions pressor-depressory effects are more common which decreases the probability of summation of single hypertensive reactions and the development of arterial hypertension.