[Electrical activity of the hypothalamus during stress].

Chronic experiments were undertaken on rabbits to ascertain the multiunit activity of the anterior (AHA), medial (MHA), and lateral (LHA) hypothalamic areas during the immobilization stress. The immobilization excited the adrenocortical activity and changed the multiunit activity. The stress resulted in a decrease in the firing rate in most pools in the AHA and LHA, and an increase in the MHA.