Who developed the concepts of the anima and the animus?

Sigmund Freud, while a foundational figure in psychology, focused more on sexual and aggressive drives, as well as the structure of the psyche (id, ego, superego). He did not develop the concepts of the anima and animus; instead, his theories revolved around different mechanisms of personality and unconscious processes.

Erik Erikson is known for his psychosocial development theory, which outlines eight stages of human development from infancy to adulthood. Although he contributed significantly to psychology, he did not address the concepts of anima and animus, which are specific to Jung's work on personality and archetypes.

Karen Horney focused on neurotic behavior and the impact of cultural and social factors on personality development. Her theories emphasized the importance of interpersonal relationships rather than the archetypal concepts of anima and animus that Jung proposed. She did not develop these ideas.