Ego Defense Mechanisms
Naming the unconscious moves the mind makes under stress
Framework
What a defense is. Ego defenses are automatic mental maneuvers that protect a person from anxiety caused by unacceptable impulses, painful realities or internal conflict. Everyone uses them. They become pathologic when immature defenses dominate and distort relationships or reality.
Mature vs immature. The mature defenses used by healthy adults are Sublimation, Altruism, Suppression and Humor (SASH). Every other defense is considered immature. Mature defenses relieve anxiety adaptively and are linked to better functioning.
Conscious vs unconscious. Defenses operate unconsciously, with one exception: suppression is a deliberate, chosen act. That single fact separates it from its look-alike, repression.
On an exam, first decide whether the behavior is conscious (only suppression) and whether it is adaptive (SASH). Then name the specific immature defense by what happens to the feeling: is it disowned, redirected, reversed, blocked or acted out?
Immature defenses that disown, redirect or reverse a feeling
Projection. The person attributes their own unacceptable feelings or impulses to someone else. A partner with an urge to cheat accuses the other partner of cheating, or a man with unconscious impulses becomes convinced others are making advances on him. Projection is prominent in paranoid states and paranoid personality disorder.
Displacement. An emotion is transferred from its true, threatening target to a safer, neutral one. Reprimanded by the boss, a man goes home and yells at his family. A resident scolded by an attending snaps at a medical student.
Projection puts your feeling into someone else ("you want to cheat, not me"). Displacement moves your feeling onto someone else ("I yell at my family, not my boss").
Reaction formation. An unacceptable impulse is replaced with its exact opposite. A person with strong libidinous urges crusades against pornography. A man with hostility toward his brother treats him with exaggerated love. A woman attracted to a coworker becomes cold and critical toward him. "The lady doth protest too much."
Splitting. People or things are seen as entirely good or entirely bad, because the person cannot hold both qualities at once. Idealization and devaluation are its two poles. A patient calls one nurse the best and another evil, or tells you that you are the only doctor who understands her while her previous doctor was the worst. Splitting is the hallmark defense of borderline personality disorder.
Immature defenses that avoid, distort or act out
| Defense | What happens | Example |
|---|---|---|
| Denial | Refuses to accept an external reality that is too threatening | Newly diagnosed with metastatic cancer, a patient insists the labs were switched and plans a vacation |
| Repression | Involuntarily blocks a distressing thought or memory from awareness | An adult cannot recall childhood abuse |
| Isolation of affect | Separates the feeling from the fact or event | A man describes his cancer diagnosis in flat, clinical detail |
| Intellectualization | Uses facts and logic to avoid disturbing feelings | A new patient buries fear in survival statistics |
| Rationalization | Justifies behavior with plausible but false reasons | "I did not want that job anyway" |
| Undoing | Tries to reverse a wrong with a symbolic act | After an angry outburst, a parent showers the child with gifts |
| Regression | Reverts to behavior of an earlier developmental stage under stress | A hospitalized, toilet-trained child resumes bedwetting or thumb-sucking |
| Acting out | Expresses feelings through actions instead of words or reflection | A teen throws a tantrum instead of saying he is upset |
| Passive aggression | Expresses hostility indirectly | Procrastinating or sulking instead of confronting |
| Identification | Models behavior on a powerful figure | An abused child becomes a bully |
| Dissociation | Temporarily splits off memory, identity or awareness to escape stress | A victim feels detached, as if watching the event from outside |
Denial in illness. Denial is common right after bad news. It is also the first of the Kübler-Ross stages of grief (denial, anger, bargaining, depression, acceptance), so brief denial is expected. Persistent denial that blocks needed treatment is a problem.
Extreme dissociation. Severe, recurrent dissociation can progress to dissociative disorders such as dissociative amnesia or dissociative identity disorder, especially after early trauma.
Mature defenses (SASH)
- Sublimation: channels an unacceptable impulse into a socially acceptable, constructive outlet. An aggressive person becomes a boxer or a surgeon. The impulse is expressed usefully, not reversed.
- Altruism: relieves one's own distress by serving others. A physician with a terminal illness finds relief by volunteering to help other patients.
- Suppression: consciously and deliberately sets a thought aside to deal with it later. A student decides not to think about a family problem until after her exam, then addresses it.
- Humor: lightens a threatening situation by finding what is funny in it, without denying the threat.
Reaction formation reverses the impulse (immature). Sublimation redirects it constructively (mature).
Telling the confusable pairs apart
| Pair | First defense | Second defense |
|---|---|---|
| Repression vs suppression | Repression: unconscious, involuntary; cannot recall the trauma (immature) | Suppression: conscious, voluntary; "I will deal with it later" (mature) |
| Projection vs displacement | Projection: my feeling attributed to you | Displacement: my feeling moved to a new, safer target |
| Reaction formation vs sublimation | Reaction formation: impulse turned into its opposite (immature) | Sublimation: impulse channeled into a useful outlet (mature) |
| Isolation of affect vs intellectualization | Isolation: the event is recalled, but the emotion is stripped away | Intellectualization: the person retreats into facts and analysis |
| Denial vs repression | Denial: rejects an external reality | Repression: blocks an internal thought or memory |
Clinical anchors. Splitting points to borderline personality disorder, and projection points to paranoid thinking. Regression is expected in ill or hospitalized children. Denial is expected early after a devastating diagnosis.