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Psychological Defense Mechanisms Overview

Jul 30, 2025

Overview

This lecture covers various psychological defense mechanisms, categorized as pathological, immature, neurotic, and mature, with definitions and practical examples for each group.

Categories of Defense Mechanisms

  • Defense mechanisms are grouped into pathological, immature, neurotic, and mature types.
  • Pathological defenses are the most maladaptive, followed by immature, neurotic, and finally mature, which are healthiest.

Pathological Defense Mechanisms

  • Denial: Refusing to accept reality because it is too threatening.
  • Splitting: Categorizing experiences or people as all good or all bad, common in borderline personality disorder.

Immature Defense Mechanisms

  • Acting Out: Directly expressing unconscious desires or impulses without awareness.
  • Idealization: Overestimating another’s positive qualities.
  • Identification: Unconsciously modeling oneself after another, often negative role models (e.g., abused child becomes abuser).
  • Passive Aggressiveness: Indirect expression of aggression, such as procrastination.
  • Projection: Attributing one’s own unwanted thoughts or feelings to someone else.

Neurotic Defense Mechanisms

  • Displacement: Redirecting emotions to a safer or less threatening target.
  • Dissociation: Temporarily altering identity to avoid distress.
  • Intellectualization: Focusing on facts or logic to avoid emotional distress.
  • Isolation: Separating emotion from events or ideas.
  • Rationalization: Creating justifications for negative outcomes or behaviors.
  • Reaction Formation: Adopting thoughts or behaviors opposite to one’s true feelings.
  • Regression: Reverting to childlike behaviors in response to stress.
  • Repression: Unconsciously blocking distressing thoughts or memories.

Mature Defense Mechanisms

  • Altruism: Deriving satisfaction from helping others.
  • Humor: Finding amusement in distressing situations.
  • Sublimation: Redirecting unacceptable impulses into socially acceptable activities.
  • Suppression: Consciously choosing to delay dealing with distressing thoughts.

Key Terms & Definitions

  • Defense Mechanism — Psychological strategies to cope with reality and maintain self-image.
  • Pathological — Severely maladaptive, distorting reality.
  • Immature — Less adaptive, common in childhood or personality disorders.
  • Neurotic — Less severe, may be seen in normal individuals under stress.
  • Mature — Most adaptive, promote healthy functioning.

Action Items / Next Steps

  • Memorize the "SASH" mnemonic for mature defense mechanisms: Suppression, Altruism, Sublimation, Humor.
  • Review examples of each defense mechanism and practice identifying them in case studies.