[Modulation of autonomic correlates of emotional stress and adaptive responses]

The character and dynamics of the cardio-vascular response to psychogenic stress (confrontation of cat and dog) depends on active or passive type of behavioral response. Tranquilizers inhibit long-lasting hypertension otherwise occurring after the stress stimulus. Adaptive cardio-vascular responses and baroreceptor reflexes did not alter after tranquilizers administration. Effects of psychotropic drugs correspond to the type of individual behavioral response.