Oedipus complex the complex and that unsuccessful outcome of the complex might lead to neurosis, pedophilia, and homosexuality. Freud rejected the term "Electra complex", which was introduced by Carl Gustav Jung in 1913 in his work, ""Theory of Psychoanalysis"" in regard to the Oedipus complex manifested in young girls. Freud further proposed that the Oedipus complex, which originally refers to the sexual desire of a son for his mother, is a desire for the parent in both males and females, and that boys and girls experience the complex differently: boys in a form of castration anxiety, girls in a form of penis
Penis envy by removing the man from the penis or the penis from the man). Freud's theories regarding psychosexual development, and in particular the "phallic stage", were early challenged by other psychoanalysts, such as Karen Horney, Otto Fenichel and Ernest Jones, though Freud did not accept their view of penis envy as a secondary, rather than a primary, female reaction. Later psychologists, such as Erik Erikson and Jean Piaget, challenged the Freudian model of child psychological development as a whole. Jacques Lacan, however, took up and developed Freud's theory of the importance of what he called ""penisneid" in the unconscious of women"