- id = a source of psychic energy that is ruled by the pleasure principle in order to receive the maximum amount of instant gratification (eating, drinking, comfort, etc.)
- ego = the resulting thoughts and behaviors that try to mediate the desires of the id and the constraints from the outside world
- superego = conscious thoughts that try to reconcile the sexual desires a child is having with what their parents deem as their standard of behavior (trying to avoid things like guilt)

Personality Structures in Freud's Psychosexual Theory of Development

According to Freud, adult personality is the direct result of resolving conflicts that occur during a series of psychosexual stages. He theorized that these conflicts center on the migration of erogenous, or sexual pleasure-producing, zones from the oral (mouth) to the anus, then the phallus, and finally the genitals. A successful resolution of the conflicts at each stage leads to a healthy adult personality, while failure to resolve them can lead to fixation and unhealthy traits.

Outcomes of Freud's Psychosexual Stages

- Personality Structures
- Stages of Psychosexual Development

Haverford College in Pennsylvania

New Mexico Highlands University

According to Sigmund Freud, personality develops during early childhood and is profoundly shaped by these formative experiences. He viewed development as a discontinuous process, proposing that individuals must pass through a series of psychosexual stages. Central to this theory is the idea that a child's pleasure-seeking urges are focused on different erogenous zones at each stage. Freud believed that if a child lacks proper nurturance and parenting during a particular stage, they can become fixated, which influences their personality and behavior in adulthood.

Freud's Theory of Psychosexual Development

Siegler, R., Saffran, J. R., Eisenberg, N., Deloache, J., &amp; Gershoff, E. (2017). How Children Develop (5th ed.). Worth Publishers, Inc.

How Children Develop Textbook

Sigmund Freud viewed development as a discontinuous process, meaning it occurs through a series of distinct, sequential stages rather than as a gradual and continuous progression. According to this view, an individual must successfully navigate the challenges of one stage before moving on to the next.

Discontinuous Nature of Freudian Development

Sigmund Freud's psychosexual development theory is widely considered controversial. This is partly due to its historical context in early 20th-century Vienna, a time of significant sexual repression. A primary scientific criticism of the theory is that it is not empirically verifiable, as it was not designed to be subjected to experimental tests.

Historical Context and Controversy of Freud's Psychosexual Theory

A developmental theory posits that adult personality is profoundly shaped by how a child's pleasure-seeking urges are managed during a series of early-life phases. If a child's needs are not met appropriately during a specific phase, they can become 'stuck' or fixated, which influences their behavior later in life. 

Given the following case, use this theoretical framework to explain the likely connection between the individual's childhood experiences and their adult personality traits.

Analysis of Adult Personality Development

A manager is described by her employees as being excessively rigid, perfectionistic, and obsessively focused on maintaining control over every detail of a project. According to the theory that personality is shaped by passing through a series of childhood stages focused on pleasure-seeking urges, which of the following is the most likely explanation for the manager's behavior?

Sigmund Freud believed that the stages of psychosexual development were universal events occurring in early childhood. He considered his own personal recollections, along with his interpretations of his patients' dreams and experiences, to be sufficient proof of this universality.

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