Circuit 5. The Neurosomatic Circuit (Zen-Yoga Mind-Body-Connexion)
Concerned with neurological-somatic feedbacks, feeling high, somatic reprogramming etc. The fifth circuit, according to Leary, is consciousness of the body. There is a marked shift from linear visual space to an all-encompassing aesthetic sensory space. A hedonic turn-on occurs, a rapturous amusement, a detachment from the previously compulsive mechanism of the first four circuits. This circuit is stimulated by ecstatic experiences via physiological effects of marijuana, Hatha Yoga, tantra (Leary's name for tantra was hedonic engineering), Zen meditation, and free fall. Leary describes that this circuit first appeared in the upper classes with the development of leisure-class civilizations around 2000 BC.