Definition/Introduction
Freud's developmental theory of psychosexual development was one of the first attempts to align psychology with the scientific structure and methodology of medicine. This unification was achieved by first defining the stages of normative human sexual development. Freud categorized psychosexual maturation into 5 distinct phases, with each stage representing a focus of the libido or instincts on different erogenous zones of the body.
To mature into a well-functioning adult, an individual must progress sequentially through these psychosexual stages. If libidinal drives are repressed or unable to be properly discharged, the individual is left feeling unfulfilled. Freud referred to this dissatisfaction as fixation. Fixation at any stage can lead to anxiety, which may persist into adulthood as neurosis. This dynamic laid the foundational basis for Freud's psychoanalytic sexual drive theory.[1]
Psychosexual Development Stages
Each of the 5 stages in Freud's psychosexual development theory is linked to a specific age range, erogenous zone, and clinical consequences of fixation.
- Stage I (aged 0-1)—Oral stage: Oral desire serves as the primary source of pleasure for a newborn. The earliest attachment the baby forms is typically with the caregiver who fulfills their oral needs, usually the mother. If the optimal level of stimulation is unavailable, libidinal energy may become fixated on the oral mode of gratification, leading to latent aggressive or passive tendencies later in life.
- Stage II (aged 1-3)—Anal stage (bowel and bladder): Toilet training is a particularly sensitive task during this stage. The parents' emphasis on proper performance shifts libidinal energy from the oral to the anal area. The child becomes more susceptible to reprimand, feelings of inadequacy, and the ability to perceive negative evaluations from caregivers if they fail to perform correctly. Fixation at this stage may result in anal retentiveness (excessive orderliness) or anal expulsiveness (whimsical disorganization).
- Stage III (aged 3-6)—Phallic stage (genitalia): This stage is perhaps the most controversial in Freud's theory of psychosexual development. During this period, the child begins to experience pleasure associated with the genitalia. In this phase of early sexual development, the child may form the roots of fixation with the opposite-sex parent, leading to the Oedipus complex.
- Stage IV (aged 6-12)—Latent period (dormant sexual feelings): During this stage, the libido is relatively repressed or sublimated. Freud did not identify a specific erogenous zone for this period. The child begins to channel their impulses indirectly, focusing on school, sports, and building relationships. Dysfunction during this stage may lead to difficulties forming healthy relationships in adulthood.
- Stage V (aged 13-18)—Genital stage (mature sexual feelings): During this stage, the child's ego becomes fully developed, and they begin seeking independence. Their ability to form meaningful, lasting relationships solidifies, and their sexual desires and activities become healthy and consensual. If a child or young adult experiences dysfunction during this period, they may struggle to develop meaningful, healthy relationships.[2]
Structural Theory
To fully understand Freud's developmental theories, it is essential to address his structural theory of the mind. According to this theory, the psyche (personality) consists of three psychic structures—the id, ego, and superego.
- The id: The id represents the instinctual aspect of the psyche, encompassing sexual and aggressive drives. Id is the individual's biological, instinctual, and unconscious drive, focused on gratification. A newborn's behavior is entirely driven by innate instincts (id). As the child matures, the ego begins to differentiate from the id.
- The ego: The ego is the decision-making component of the personality. Unlike the id, which functions according to the pleasure principle and seeks immediate gratification, the ego operates based on the reality principle, pursuing satisfaction through practical and realistic strategies. This serves as a mediator between the id and the external world. While the ego is rational in nature, the id is driven by irrational impulses.[3][4]
- The superego: The superego is the final psychic structure to develop, which incorporates the morals and values of society. This construct forms during the phallic stage and functions similarly to a moral compass.[3][5] These structures help explain pathological behavior and the sources of anxiety.
Issues of Concern
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Issues of Concern
Overview of Key Features and Criticisms of Freud's Theory
Sigmund Freud, often referred to as the "Father of Psychoanalysis," profoundly influenced both theoretical and practical approaches to understanding the human mind and the.[6] The concept that personality is shaped by childhood experiences—an especially vulnerable period—is a widely accepted paradigm in psychiatry. Childhood vulnerabilities and anxieties are believed to have a critical role in shaping future emotional challenges.[6][7]
Modern Criticisms and Reinterpretations of Freud's Theory
The primary tenet of Freudian psychosocial development is the causal relationship between sexual conflict and the subsequent precipitant psychoneurosis. This principle has been controversial since its inception. Critics of Freud argue that neuroses can develop independently, without the need for a psychosexual cause.[2]
Another common critique of Freud's theory is the issue of experimenter bias. In their paper Biology and the Oedipus Complex, Friedman and Downey suggest that the Oedipus complex may be a misinterpretation of evolutionary-based play behavior, manifesting through competition.[8]
Freud argues that early experiences and interactions with parents and caregivers shape an individual's personality. His theory emphasizes sexual drives and the unconscious mind, focusing solely on the individual psyche.[6] The theory does not acknowledge the role of society or culture in shaping identity.[6]
Furthermore, Freud’s theory focuses solely on development from birth through adolescence, suggesting that personality becomes fixed during the teenage years.[7] According to this view, any psychological injury inflicted during these stages is irreversible. This perspective contrasts with the opinions of his followers, particularly Erik Erikson, who argued that development continues throughout the lifespan.
The Oedipus complex is one of the most controversial and criticized concepts introduced by Freud. Despite this, it remains a core concept in psychoanalysis and continues to influence our understanding of human psychology and development.[6] The Oedipus complex occurs between the ages of 3 and 6 (Phallic stage) and involves a young boy’s unconscious desire for his mother and a wish to replace his father to gain her affection. These aggressive sexual urges are met with fear of castration by the father (castration anxiety), which leads the boy to abandon his desire for his mother. The unconscious nature of these feelings causes the child to feel guilty about his incestuous desires.
While Freud argues that the Oedipus complex is the core defining dynamic of human life, the unconscious sense of guilt is a deeper, underlying feeling that both precedes and transcends it. The superego is essentially a manifestation of unconscious guilt. Oedipal desires are repressed by the superego, which is also an end product of these desires. Although Freud suggests that the unconscious sense of guilt arises as a byproduct of Oedipal development, this guilt actually exists well before the Oedipus complex, challenging the belief that the superego develops during the phallic stage.[9]
The unconscious sense of guilt lays the foundation for Freud’s tripartite model of the ego and the id. According to the structural theory, the id is entirely nonmoral, the ego strives to be moral, and the superego is supermoral, sometimes as cruel as the id. The stronger an individual's moral standards, the more dominant the superego becomes. An overly dominant superego redirects aggression inward and is believed to be the root cause of obsessive neurosis, resulting in ruminations, compulsions, and prohibitions.[9]
Freud’s ideas have been criticized as reductive by both the feminist and gay rights movements.[10] Karen Horney, a student of Freud and a prominent figure in psychoanalysis, challenged the concept of penis envy, arguing that it reflects a male-centric perspective and fails to account for the lived experiences of women.[7] Another major criticism is Freud’s repressive stance on homosexuality.[11] Freud's theory identifies heterosexuality as the normal resolution of the Oedipal complex, while characterizing homosexuality as a deviation or a sign of arrested sexual development.[12] Despite the criticisms, Freud's pioneering work significantly influenced psychology and our understanding of human behavior and mental processes.
Clinical Significance
Freud's ideas paved the way for a deeper exploration of the unconscious aspects of the human mind, ultimately laying the foundation for psychoanalysis and modern psychodynamic psychotherapy.[6][7]
Nursing, Allied Health, and Interprofessional Team Interventions
An example of how dysfunction in Freud's psychosexual development can impact patient care is discussed in a 2008 paper that examines the shift handover ritual among psychiatric nurses. The handover process from one nursing shift to another meets all the criteria of a ritual, as defined by psychoanalytic theory. This ritual is influenced by the nurses' anxieties and their resulting perceptions of the patient. Notably, it is suggested that the handover serves as a ritual through which nurses can manage their anxieties and continue providing care for the patient.[13]
References
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Kupfersmid J. Freud's Clinical Theories Then and Now. Psychodynamic psychiatry. 2019 Spring:47(1):81-97. doi: 10.1521/pdps.2019.47.1.81. Epub [PubMed PMID: 30840557]
Boag S. Ego, drives, and the dynamics of internal objects. Frontiers in psychology. 2014:5():666. doi: 10.3389/fpsyg.2014.00666. Epub 2014 Jul 1 [PubMed PMID: 25071640]
De Sousa A. Freudian theory and consciousness: a conceptual analysis**. Mens sana monographs. 2011 Jan:9(1):210-7. doi: 10.4103/0973-1229.77437. Epub [PubMed PMID: 21694972]
Żechowski C. Theory of drives and emotions - from Sigmund Freud to Jaak Panksepp. Psychiatria polska. 2017 Dec 30:51(6):1181-1189. doi: 10.12740/PP/61781. Epub 2017 Dec 30 [PubMed PMID: 29432512]
Tarzian M, Ndrio M, Fakoya AO. An Introduction and Brief Overview of Psychoanalysis. Cureus. 2023 Sep:15(9):e45171. doi: 10.7759/cureus.45171. Epub 2023 Sep 13 [PubMed PMID: 37842377]
Level 3 (low-level) evidenceMistry LN, Neelkanthan S, Deshpande SS, Jawdekar AM, Shah PP, Khachane NA. Matters of the Mind: A Look Into the Life of Sigmund Freud. Cureus. 2024 Oct:16(10):e71562. doi: 10.7759/cureus.71562. Epub 2024 Oct 15 [PubMed PMID: 39552960]
Friedman RC, Downey JI. Biology and the oedipus complex. The Psychoanalytic quarterly. 1995 Apr:64(2):234-64 [PubMed PMID: 7652101]
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Shulman ME. What Use is Freud? Journal of the American Psychoanalytic Association. 2021 Dec:69(6):1093-1113. doi: 10.1177/00030651211059546. Epub [PubMed PMID: 35170345]
Olver T. The Problem of Value and Other Outstanding Issues in Freud's Sexual Theory. Psychoanalytic review. 2020 Oct:107(5):405-434. doi: 10.1521/prev.2020.107.5.405. Epub [PubMed PMID: 33079636]
de Kuyper E. The Freudian construction of sexuality: the gay foundations of heterosexuality and straight homophobia. Journal of homosexuality. 1993:24(3-4):137-44 [PubMed PMID: 8505533]
Evans AM, Pereira DA, Parker JM. Discourses of anxiety in nursing practice: a psychoanalytic case study of the change-of-shift handover ritual. Nursing inquiry. 2008 Mar:15(1):40-8. doi: 10.1111/j.1440-1800.2008.00387.x. Epub [PubMed PMID: 18271789]
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