DEPERSONALISATION
As noted earlier, consciousness is a universal tool for adapting to the environment. Consciousness as a system of continuous, reflex-conditioned connection, circular transformation, a mutual transformation of the real into the ideal, as it is noted by A.A. Megrabyan, makes it possible to transform the environment of the human being, arrange spatial representations of objects next to each other (1972). Thus, the subjective content of the human's consciousness, self-consciousness is formed. It includes the sense of opposition between the "self" and the whole world around (there exist "self" and "non-self"), sense of uniqueness and activity of the "self". The brain of the human being, controlling their behaviour and integrating the process of self-consciousness, has enormous potential. If we represent a series of 24 billion cells of the cortex, they form a path of 5,000 km length. Myriads of neurons and synapses make it possible to establish countless associative connections and, taking into account the special properties of synapses, such connections form a dynamic character. It is known that the number of possible combinations of connections in the presence of, e.g., ten billion cells is almost 50 trillion possible connections. Bearing in our mind that nowadays the number of neurons in the brain is estimated about 100 billion, and the connections between individual neurons can be not only direct but also mediated, the possible number of combinations reaches such number exponent that it is difficult to imagine.
The term "depersonalisation" was introduced into usage by L. Dugas and K. Moutier (1898, 1910). The word "depersonalisation" itself means dissociation, the disappearance of the "self". However, L. Dugas understood depersonalisation as a sense of losing the "self", and not its total loss.