The Emotional Circuit is concerned with raw emotion and the separation of behavior into submissive and dominant. This circuit appeared first in vertebrate animals. In humans, it is activated when the child learns to walk. Leary associates this circuit with alcohol. This circuit introduces a second dimension, up-down, linked with territorial politics and tribal power games (up, as in swelling ones body in size to represent dominance, and down, as in the cowering, tail-between-the-legs submissive stance).
The Symbolic Circuit is concerned with logic and symbolic thought. Leary said this circuit first appeared when hominids started differentiating from the rest of the primates. Leary believed this circuit is stimulated by caffeine, cocaine, and other stimulants. This circuit introduces the third dimension, left and right, related to the development of dextrous movement and handling "artefacts". (Also called by Leary The Dexterity-Symbolism Circuit; called by Robert Anton Wilson the Semantic Circuit.)
The Domestic Circuit. This circuit is concerned with operating within social networks and the transmission of culture across time. This circuit is said to have first appeared with the development of tribes. Leary never associated a drug with it. [However Endorphins and other "drugs" produced by the body itself during social interaction can be connected to this circuit. The lack of knowledge about the cause and mechanism of these drugs, as well as lack of a method to stimulating their production, would explain their non-mention in his works.] This fourth circuit deals with moral-social/sexual tribal rules passed through generations and is the introduction to the fourth dimension -- time. (Also called by Leary and Wilson the Socio-Sexual Circuit).
The Neurosomatic Circuit is the first of the right-brain, "higher" circuits which are usually inactive in most humans. It allows one to see things in multi-dimensional space instead of the 4 dimensions of Euclidean space-time, and is there to aid in the future exploration of outer space. It is said to have first appeared with the development of leisure-class civilizations around 2000 BC. It is associated with hedonism and eroticism. Leary says this circuit is stimulated by cannabis and tantric yoga, or simply by experiencing the sensation of free fall at the right time.
The Neuroelectric Circuit is concerned with the mind becoming aware of itself independent of the patterns imprinted by the previous five circuits. It is also called "metaprogramming" or "consciousness of abstracting". Leary says this circuit enables telepathic communication, and that this circuit is impossible to explain to those who have only left-brain activity and is difficult to explain to those with active fifth circuits. It is said to have appeared in 500 BC, in connection with the Silk Road. Leary associates this circuit with peyote and psilocybin. (Robert Anton Wilson called this circuit The Metaprogramming Circuit.)
The Neurogenetic Circuit allows access to the genetic memory contained in DNA. It is connected to memories of past lives, the Akashic Records, and the collective unconscious, and allows for essential immortality in humans. This circuit first appeared among Hindu and Sufi sects in the early first millennium. This circuit is stimulated by LSD, and Raja Yoga. (Robert Anton Wilson called this circuit The Morphogenetic Circuit.)
The Psycho-atomic Circuit allows access to the intergalactic consciousness that predates lif...