Early Psychology: Learn It 5—Psychoanalytic Theory

Sigmund Freud and Psychoanalytic Theory

Photograph A shows Sigmund Freud. Image B shows the title page of his book, A General Introduction to Psychoanalysis.
Figure 1. (a) Sigmund Freud was a highly influential figure in the history of psychology. (b) One of his many books, A General Introduction to Psychoanalysis, shared his ideas about psychoanalytical therapy; it was published in 1922. Note that the preface was written by G. Stanley Hall, who founded the American Psychological Association.

Sigmund Freud (1856–1939), an Austrian neurologist, is one of the most famous figures in psychology. He studied patients diagnosed with “hysteria”—a term then used (mostly for women) to describe a wide range of physical and emotional symptoms without clear medical cause.

Freud proposed that these problems originated in the unconscious mind, a hidden storehouse of urges and feelings outside of awareness. He believed accessing the unconscious was key to resolving psychological distress. Techniques included dream analysis, free association (saying the first words that come to mind), and slips of the tongue (later called Freudian slips).

Freud’s psychoanalytic theory emphasized the unconscious and the role of early childhood experiences. His work shaped clinical psychology for decades. The broader psychodynamic perspective includes Freud’s ideas as well as those developed by his followers.

Image of iceberg, with most of the ice below the surface of the water.
Figure 2. Freud’s theory of the unconscious. Freud believed that we are only aware of a small amount of our mind’s activity, and that most of it remains hidden from us in our unconscious. The information in our unconscious affects our behavior, although we are unaware of it.

Id, Ego, and Superego

Freud’s structural model of personality divided the mind into three interacting systems:

  • Id: unconscious drives such as sex and aggression.
  • Ego: partly conscious, rational system that mediates between the id, superego, and external world.
  • Superego: conscience, shaped by parents and society, with both conscious and unconscious elements.

Healthy functioning requires balance among these three forces. When the ego cannot mediate effectively, psychological distress results.

Psychosexual Theory of Development

Freud also proposed that personality develops through five psychosexual stages: oral, anal, phallic, latency, and genital. Each stage centers on a body region (an erogenous zone) that drives pleasure-seeking. If children do not receive adequate nurturing at a stage, they may become fixated, carrying unresolved issues into adulthood.

Although most modern psychologists reject Freud’s psychosexual model, it highlighted how childhood experiences influence personality—an idea that remains important today.

Freud’s Legacy

Freud’s theories are both highly influential and controversial. He popularized psychoanalysis, a form of talk therapy focused on exploring experiences and the unconscious, which is still practiced in various forms. While many of his specific claims (like psychosexual stages) are disputed, his emphasis on the unconscious and early development shaped psychology, therapy, and even popular culture.

Freud is probably one of the most well-known historical figures in psychology. Where have you encountered references to Freud or his ideas about the role that the unconscious mind plays in determining conscious behavior?