Classification of Personality Disorders

Classification of Personality Disorders

Classification of Personality Disorders

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Personality Disorders Overview - Defining Deviance

  • Personality: Enduring patterns: perceiving, relating, thinking.
  • Trait vs. Disorder: Traits inflexible, maladaptive, causing distress/impairment.
  • General DSM-5 Criteria:
    • Enduring, deviant pattern (≥2 areas: cognition, affect, interpersonal, impulse).
    • Pervasive, inflexible.
    • Significant distress/impairment.
    • Stable, long duration; onset by adolescence/early adulthood.
    • Not other disorder, substance, medical condition.
    • 📌 Mnemonic: ENDURES (Enduring, Not other, Deviates, Pervasive, Early onset, Distress/Impairment, Stable).

⭐ Ego-syntonic: Individuals see traits as natural, not problems.

Cluster A Personalities - Odd & Eccentric Crew

📌 Mnemonic: Cluster A: 'PSSst... A weirdo!' (Paranoid, Schizoid, Schizotypal)

FeatureParanoid PDSchizoid PDSchizotypal PD
Core FeatureDistrust, SuspiciousnessDetachment, Restricted EmotionSocial discomfort, Cognitive/Perceptual distortions, Eccentricity
Interpersonal StyleGuarded, ArgumentativeAloof, IndifferentSuspicious, Few friends
AffectHostile, IrritableCold, Detached, FlatInappropriate, Constricted
Cognition/PerceptionHidden meanings, Doubts loyaltyLacks interest (sex/pleasure)Magical thinking, Odd beliefs
BehaviorSecretive, JealousSolitary, Lacks friendsOdd speech/appearance, Social anxiety
Key DefenseProjectionFantasy, IntellectualizationUndoing, Magical thinking

Cluster B Personalities - Dramatic & Erratic Ensemble

📌 Mnemonic: Cluster B: 'Wild BAHN' (Borderline, Antisocial, Histrionic, Narcissistic)

FeatureAntisocial (ASPD)Borderline (BPD)Histrionic (HPD)Narcissistic (NPD)
Core FeatureDisregard rights; Conduct <15y, now ≥18yInstability (mood, self, relations)Excessive emotionality, attention-seekGrandiose, needs admiration, lacks empathy
Interpersonal StyleDeceitful, manipulativeIntense, unstable; fears abandonmentSuperficial, theatricalExploitative, entitled
AffectIrritable, aggressiveUnstable, intense anger, emptyRapidly shifting, shallowLabile (if criticized)
BehaviorImpulsive, unlawfulImpulsive (self-damaging), suicidal gesturesProvocative, dramaticSeeks admiration
Self-ImageInflatedUnstable, poorVague, needs approvalGrandiose, fragile
Key DefenseRationalizationSplittingRepressionIdealization/Devaluation

⭐ Splitting (viewing people/situations as all good or all bad) is a hallmark defense mechanism in Borderline Personality Disorder.

Cluster C Personalities - Anxious & Fearful Folks

📌 Mnemonic: CADet (Compulsive, Avoidant, Dependent) or Anxious CAD.

FeatureAvoidant PDDependent PDObsessive-Compulsive PD (OCPD)
Core FeatureSocial inhibition, inadequacyExcessive need to be cared forPreoccupation with order, perfection
InterpersonalFears criticism, rejectionSubmissive, clinging, fears separationRigid, controlling
AffectAnxious, fearfulAnxious, helpless when aloneConstricted, serious
BehaviorAvoids social interactionSeeks reassurance, avoids decisionsPerfectionistic, inflexible
Self-PerceptionSocially inept, inferiorInadequate, helplessRighteous, responsible
Key DefenseFantasy, withdrawalIntrojection, idealizationIntellectualization, reaction formation

Other PD Aspects - Nuances & Notes

  • DSM-5 Alt. Model: Includes PD Trait-Specified.

    ⭐ The DSM-5 alternative model for personality disorders emphasizes impairments in personality functioning (self and interpersonal) and pathological personality traits.

  • ICD-11 General PD: Core self/interpersonal dysfunction.
  • ICD-11 Personality Difficulty: Subthreshold, causes distress.

High‑Yield Points - ⚡ Biggest Takeaways

  • Personality Disorders (PDs) are classified using DSM-5 and ICD-11.
  • PDs fall into three clusters: A (Odd/Eccentric), B (Dramatic/Erratic), C (Anxious/Fearful).
  • Cluster A: Paranoid, Schizoid, Schizotypal.
  • Cluster B: Antisocial, Borderline, Histrionic, Narcissistic.
  • Cluster C: Avoidant, Dependent, Obsessive-Compulsive PD (OCPD).
  • Characterized by pervasive, inflexible patterns from early adulthood, causing significant distress or functional impairment.
  • Symptoms are typically egosyntonic (patient often unaware of problem) and stable over time.

Practice Questions: Classification of Personality Disorders

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Which of the following is not a characteristic of schizoid personality disorder?

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Flashcards: Classification of Personality Disorders

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Cluster _____ personality disorders have a genetic association with schizophrenia

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Cluster _____ personality disorders have a genetic association with schizophrenia

A

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