Dissociative Disorder

Core Dissociative Disorders (DSM-5)

1. Dissociative Identity Disorder (DID)

2. Dissociative Amnesia (with or without Fugue)

3. Depersonalization/Derealization Disorder

Study Pointer:
Focus on the differences in identity disruption, memory gaps, and perception detachment between these disorders.

Dissociative Identity Disorder (DID)

Key Features:

• Two or more distinct personality states (alters) with unique behaviors, voices, memories.

• Recurrent memory gaps for personal information or everyday events.

• Alters may differ in age, gender, abilities, or even species.

• Switching is often stress- or trauma-induced.

• Not due to substance use or medical condition.

Types of Alters:

• Host – Primary identity

• Child Alters – Represent vulnerable states

• Protector Alters – Defend against trauma

• Persecutor Alters – Self-destructive or aggressive

• Opposite-Gender or Non-Human Alters – Unusual traits or identities

Culture-Specific Forms:

• Amok (Malaysia): Dissociative rage state

• Possession States: Present in some cultures; only pathological if distressing, involuntary, and outside cultural norms

Study Pointer:
Alters reflect coping strategies for trauma. DID is not voluntary and disrupts functioning.

Dissociative Amnesia

Core Criteria:

• Inability to recall important autobiographical information, usually related to trauma or stress.

• Memory loss is too extensive to be explained by normal forgetting.

• Dissociative Fugue (Specifier): Unexpected travel away from home, possible new identity, amnesia for the past.

Types of Amnesia:

• Localized: No memory for events in a specific time frame

• Selective: Memory gaps for parts of traumatic event

• Generalized: Complete loss of personal identity

• Systematized: Memory loss for a specific person or category

• Continuous: Ongoing memory loss from a certain point forward

Associated Features:

• History of trauma

• High risk behaviors, self-injury

• Emotional distress

Study Pointer:
Unlike brain injury, dissociative amnesia is reversible and psychogenic (psychologically caused).

Depersonalization/Derealization Disorder (DPDR)

Depersonalization:

• Detachment from self, as if observing oneself

• Thoughts and emotions feel "not mine"

• Body may feel foreign or unreal

Derealization:

• World appears dreamlike, foggy, or artificial

• Distortions in perception (visual or auditory)

Diagnosis:

• Persistent or recurrent symptoms

• Reality testing remains intact (they know something is wrong)

• Causes distress or functional impairment

Study Pointer:
DPDR is not due to panic, drugs, or psychosis. Reality awareness separates it from psychotic disorders.

Differential Diagnosis Overview

Study Pointer:
Always consider memory disruption, identity fragmentation, and the internal vs. external origin of symptoms.

Comorbidities

• PTSD

• Major Depression

• Substance Use Disorders

• OCD

• Eating Disorders

• Personality Disorders (BPD, Avoidant, Obsessive-Compulsive)

Study Pointer:
Dissociation often co-occurs with trauma-related and emotional regulation disorders.

Etiology of Dissociative Disorders

1. Trauma & Stress

• Early, chronic abuse or neglect

• Stressful events overwhelming emotional capacity

2. Psychodynamic Theory

• Dissociation as repression of unbearable memories

3. Cognitive-Behavioral Theory

• Maladaptive avoidance of trauma, emotion dysregulation

4. Trait Theories

• High neuroticism, low conscientiousness increase vulnerability

5. Humanistic/Existential

• Crisis in self-concept or personal meaning

6. Biological Factors

• Possible genetic predisposition

• Changes in hippocampus/prefrontal cortex after trauma

7. Attachment Issues

• Insecure or neglectful caregiving impairs identity development

8. Cultural Factors

• Cultural norms shape how dissociation manifests (e.g., possession, trance states)

Study Pointer:
Think of dissociation as a coping mechanism for overwhelming inner experiences.

Treatment Approaches

1. Psychotherapy (First-Line)

• CBT: Restructure distorted thoughts, reduce avoidance

• Trauma-Focused Therapies:

  • Prolonged Exposure (PE)

  • Cognitive Processing Therapy (CPT)

  • Narrative Therapy

2. Hypnotherapy

• Access and integrate repressed memories

• Reduce episode frequency

• Promote unity of identity

3. Psychodynamic Therapy

• Explore unconscious conflicts

• Free association, interpretation, catharsis

4. Medication (Supportive Only)

• SSRIs: Depression/anxiety

• Benzodiazepines: Severe anxiety (use cautiously)

• Atypical antipsychotics: If psychotic features present

• Mood stabilizers: If mood symptoms are severe

5. Integration Techniques

• Internal communication between alters

• Journaling, visualization, grounding

• Phases: Stabilization → Trauma Processing → Integration

6. Grounding & Mindfulness

• 5-4-3-2-1 technique, breathing, progressive relaxation

• Use physical objects to stay connected to present

7. EMDR (Eye Movement Desensitization and Reprocessing)

• Process trauma through bilateral stimulation

• Reduce intensity of emotional responses

• Strengthen identity coherence

8. Psychoeducation & Supportive Therapy

• Educate clients and families on dissociation and triggers

• Group therapy to share coping strategies

Study Pointer:
Effective treatment aims at stabilization, trauma resolution, and identity integration.

Final Study Tips

• Distinguish DID, Amnesia, and DPDR by memory, identity, and perception.

• Know cultural variants and comorbidities.

• Link treatment methods to disorder mechanisms (e.g., trauma → exposure therapy).

• Understand that dissociation protects the mind from trauma, but becomes maladaptive when persistent.