In the origins of psychoanalysis, Freud tries to identify the traumatic event that had lead to the apparition of the neurotic symptoms. He defines the psychic trauma in two stages. The first traumatic scene takes place during childhood and consists in the seduction of an adult. This scene does not provoke any symtoms and is repressed. At the wake of puberty with the reactivation of the infantile sexuality, the repressed scene acquires a sexual signification and provokes neurotic symptoms. However, in 1897 Freud abandons the seduction theory, which he had related to external reality and places psychical reality, infantile sexuality and the unconscious fantasies in the center of psychoanalytic theory.