Thanks to his studies on schizophrenic thoughts, Matte Blanco (The Unconscious as Infinite Sets. An essay in Bi-Logic, 1975) introduced an important modification of Freud's notion of the unconscious. He established that unconscious system is ruled by the symmetrical logic.
This logic rises from two principles: the principle of generalization and the principle of symmetry.
According to the Principle of symmetry : In the unconscious, the inverse relationship of each relationship is treated as if it was equal to the relationship. For example: if Juan is the father of Francisco, Francisco is the father of Juan.
A consequence of this principle is the absence of time in the unconscious (Matte Blanco, 1975) because a logical connection of nearness between parts of a whole, cannot exist.
Additionally, Freud (1900) said that the process of a dream is strictly ruled by the unconscious and said that many dreams neglect the temporal sequence of their contents, while others try to indicate the temporal sequence in a complete way. Accordingly, Freud said that there's an alternation of absence and presence of temporal sequences in the unconsciouss (and so in dreams).
Does this alternation of absence and presence of temporal sequences, involve different brain's processes?
Freud, S. (1900). The Interpretation of Dreams Third Edition Translated with Introduction by A.A. Brill, Ph.B., M.D. in 1913 New York:The Macmillan Company
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