Science

Types of Psychological Defense Mechanism

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Defense Mechanism
Category
Common Example
Key Theorist
Known For
Denial
Primitive / ImmatureAlcoholic insists they don't have a drinking problemSigmund FreudMost basic defense mechanism, refusing to accept reality, 'Denial is not just a river in Egypt', first stage of grief (Kübler-Ross)
Projection
Primitive / ImmatureCheating partner constantly accuses spouse of cheatingSigmund FreudAttributing your own unacceptable feelings to others, 'every accusation is a confession', extremely common in relationships and politics
Sublimation
MatureChanneling aggression into competitive sports or artSigmund FreudOnly defense mechanism Freud considered truly healthy, transforms unacceptable impulses into socially valued activities, artists and athletes
Repression
NeuroticChildhood trauma victim has no memory of the eventSigmund FreudUnconscious burial of threatening memories, Freud's foundational concept, controversial 'recovered memory' therapy debates
Rationalization
NeuroticGetting fired and saying 'I wanted to leave anyway'Anna Freud / Ernest JonesCreating logical explanations for emotionally driven behavior, sour grapes fable, 'I didn't want it anyway', cognitive dissonance reducer
Displacement
NeuroticYelling at your family after a bad day at workSigmund FreudRedirecting emotions from threatening target to safer one, 'kicking the dog' syndrome, boss→employee→spouse→child chain
Regression
ImmatureAdult throwing a tantrum when stressedSigmund FreudReverting to earlier developmental behavior under stress, thumb-sucking, baby talk, clingy behavior, common in hospitalized children
Reaction Formation
NeuroticHomophobic person secretly attracted to same sexSigmund FreudConverting unacceptable feelings into their extreme opposite, Shakespeare's 'the lady doth protest too much', overcompensation
Intellectualization
NeuroticDiscussing death in purely clinical/philosophical terms to avoid griefAnna FreudUsing abstract thinking to distance from emotional pain, doctors and academics often rely on this, 'let's look at the data'
Humor
MatureMaking jokes about your own illness to copeSigmund Freud / George VaillantUsing comedy to acknowledge and defuse anxiety, gallows humor, comedians often have traumatic backgrounds, socially acceptable coping
Splitting
Primitive / ImmatureIdealizing someone one day, demonizing them the nextMelanie Klein / Otto KernbergBlack-and-white thinking, people are either all-good or all-evil, central to borderline personality disorder, no middle ground
Undoing
NeuroticBeing extra nice to someone after thinking hostile thoughts about themSigmund FreudAttempting to reverse unacceptable thoughts through compensatory behavior, related to OCD rituals, guilt-driven actions
Altruism
MatureTrauma survivor becoming a counselor for other victimsGeorge VaillantChanneling personal pain into helping others, genuinely constructive, differs from self-sacrifice which can be neurotic
Compartmentalization
NeuroticEthical person at home, ruthless at work — no cognitive conflictVarious psychoanalystsSeparating conflicting values or behaviors into mental compartments, allows contradictions to coexist, common in high-stress professions
Dissociation
Primitive / PathologicalFeeling detached from body during a traumatic eventPierre Janet / DSMMental disconnection from reality during overwhelming stress, 'out of body' experiences, ranges from daydreaming to DID (multiple personalities)

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