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Defense Mechanisms

🧠 Psychology By CampusDown Wiki Editorial Team Last updated
Quick answer: defense mechanisms are mostly unconscious strategies the ego uses to protect itself from anxiety and unacceptable feelings or impulses by distorting, redirecting or reframing them.
Contents
  1. 1. The concept
  2. 2. Common defenses
  3. 3. Vaillant's hierarchy
  4. 4. In practice
  5. 5. References

The concept

Sigmund Freud proposed that the ego uses defenses to reduce anxiety arising from conflicts among the id, superego and reality. Anna Freud systematised them in The Ego and the Mechanisms of Defence (1936). Everyone uses defenses; problems arise when they are rigid or immature.

Common defenses

  • Repression: pushing painful memories or wishes out of awareness
  • Denial: refusing to accept a reality, such as a diagnosis
  • Projection: attributing one's own feelings to others
  • Rationalization: plausible excuses, as in sour grapes
  • Reaction formation: acting opposite to true feelings
  • Displacement: redirecting feelings to a safer target
  • Regression: returning to earlier behaviour
  • Intellectualization: handling emotion through abstract analysis
  • Sublimation: channelling impulses into valued activities, such as aggression into sport
  • Identification: taking on another person's traits

Vaillant's hierarchy

Using the Harvard adult development study, George Vaillant ranked defenses as pathological, immature, neurotic and mature (sublimation, humour, altruism, suppression), finding that mature defenses predicted better adaptation in later life. DSM-IV included a Defensive Functioning Scale in an appendix.

In practice

Counsellors and social workers avoid tearing down defenses abruptly, instead understanding the anxiety they guard against and helping clients move toward more adaptive coping.

References

  1. Freud, A. (1936/1966). The Ego and the Mechanisms of Defense (Rev. ed.). International Universities Press.
  2. Vaillant, G. E. (1977). Adaptation to Life. Little, Brown.
  3. Cramer, P. (2000). Defense mechanisms in psychology today: Further processes for adaptation. American Psychologist, 55(6), 637-646.
  4. American Psychiatric Association. (1994). Diagnostic and Statistical Manual of Mental Disorders (4th ed.). APA.

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This article was last updated on October 15, 2026. It is based on widely recognized original works and textbooks; when citing it in a paper, please check the original sources listed in the references.