During each stage, sexual energy (libido) is expressed in different ways and through different body parts. He also believed that childhood experiences shape human personality in powerful ways According to freud, children go through a series of psychosexual stages that lead to the development of the adult personality Freud's stages of human development, which consisted of five. Freud's developmental theory of psychosexual development was one of the first attempts to align psychology with the scientific structure and methodology of medicine This unification was achieved by first defining the stages of normative human sexual development
Freud categorized psychosexual maturation into 5 distinct phases, with each stage representing a focus of the libido or instincts on. To spell out the formative development of the sexual drive, freud focused on the progressive replacement of erotogenic zones in the body by others An originally polymorphous sexuality first seeks gratification orally through sucking at the mother’s breast, an object for which other surrogates can later be provided In sigmund freud’s psychoanalytic theory, libidinal energy plays a central role as the driving force behind behavior and personality development Freud conceptualized libido as the energy created by survival and sexual instincts, which is part of the id—the unconscious part of the psyche that operates based on the pleasure principle.
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