…the desire to find there three psychic agencies had been sparked by a diagram Freud published in the course of summarizing his new structural theory of mind, which he developed in the decade 1923 to 1933. That new theory maintained his earlier distinction between conscious and unconscious mental functions, but it added three interacting psychic agencies: the ego, the id, and the superego.
Freud saw consciousness as the surface of the mental apparatus. Much of our mental function is submerged below that surface, Freud argued, just as the bulk of an iceberg is submerged below the surface of the ocean. The deeper a mental function lies below the surface, the less accessible it is to consciousness.
Psychoanalysis provided a way of digging down to the buried mental strata, the preconscious and the unconscious components of the personality.
Picture of Freud’s structural theory
What gave Freud’s new model a dramatic…
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