Stimulation of limbic system of brain in waking animals.

Phylogenetic and cytoarchitectural studies, together with recent physiological investigations, suggest that the limbic system represents an early neural development involved in the higher control of the autonomic nervous system and in affectively determined behavior (1, 2) . The limbic system has a marked influence over the viscera controlled by the autonomic system; hence the designation "visceral brain" is applied to it ( I ) . This paper (3) summarizes our studies on 29 cats and 13 monkeys (Mncacus) , in which multilead electrodes were implanted in both cerebral hemispheres in different parts of the limbic system (amv~dala both anteromedial and baso\ ,u