Psychological Disorders and Their Treatment: Study Guide

Psychological Disorders and Theories

Overview of Psychological Disorders

A psychological disorder is a clinically significant disturbance in a person's thoughts, emotions, or behavior that causes distress or impairs functioning. Understanding these disorders involves distinguishing between normal reactions to stress and clinically significant symptoms.

• Psychological Disorder: A syndrome marked by a clinically significant disturbance in cognition, emotion regulation, or behavior.

• Distress and Dysfunction: Disorders cause significant distress or impairment in social, occupational, or other important activities.

• Historical Context: Early explanations included supernatural causes, but the medical model now dominates, viewing disorders as illnesses with biological, psychological, and social causes.

The Medical Model

• Disorders are seen as illnesses with biological causes, diagnosable symptoms, and possible cures.

• Discovery of syphilis as a cause of mental symptoms supported the medical model.

• Medical model led to the search for physical causes and treatments for mental disorders.

Biopsychosocial Approach

• Considers biological, psychological, and social-cultural influences on psychological disorders.

• Integrates multiple perspectives for a comprehensive understanding.

Diagnosis and Classification

Diagnostic and Statistical Manual of Mental Disorders (DSM)

• The DSM is the standard classification system for mental disorders in the U.S.

• Provides criteria for diagnosing disorders and ensures consistency among professionals.

• Criticisms include potential for overdiagnosis and labeling, but it remains widely used.

Labeling and Stigma

• Labels can help with diagnosis and treatment but may also lead to stigma and discrimination.

• Important to use diagnostic labels carefully and avoid stereotypes.

Professional Terminology and Roles

Key Mental Health Professionals

• Psychologist: Holds a Ph.D. or Psy.D., provides therapy and psychological testing.

• Psychiatrist: Medical doctor (M.D.) who can prescribe medication.

• Social Worker/Therapist: Provides counseling and support, often with a master's degree.

• Psychiatric Nurse Practitioner: Can prescribe medication and provide therapy.

Major Psychological Disorders

Anxiety Disorders

• Generalized Anxiety Disorder (GAD): Persistent, excessive worry about various topics.

• Panic Disorder: Recurrent unexpected panic attacks and fear of future attacks.

• Phobias: Irrational fears of specific objects or situations (e.g., heights, flying).

• Obsessive-Compulsive Disorder (OCD): Repetitive, intrusive thoughts (obsessions) and ritualistic behaviors (compulsions).

• Post-Traumatic Stress Disorder (PTSD): Persistent symptoms following exposure to trauma, including flashbacks, nightmares, and hypervigilance.

Mood Disorders

• Major Depressive Disorder: At least 5 symptoms (e.g., depressed mood, loss of interest, fatigue) for 2+ weeks.

• Bipolar Disorder: Alternating periods of depression and mania/hypomania.

• Suicidal Ideation: Thoughts of suicide, which require immediate attention and intervention.

Eating Disorders

• Anorexia Nervosa: Restriction of food intake, intense fear of gaining weight.

• Bulimia Nervosa: Binge eating followed by compensatory behaviors (e.g., vomiting).

• Binge Eating Disorder: Recurrent episodes of binge eating without compensatory behaviors.

Neurodevelopmental Disorders

• ADHD: Inattention, hyperactivity, and impulsivity beginning in childhood.

• Autism Spectrum Disorder: Impairments in social communication and restricted, repetitive behaviors.

Dissociative, Somatic, and Health-Related Disorders

• Dissociative Disorders: Disruptions in memory, identity, or consciousness (e.g., Dissociative Identity Disorder).

• Somatic Symptom Disorders: Physical symptoms without a clear medical cause.

Schizophrenia Spectrum and Other Psychotic Disorders

• Characterized by delusions, hallucinations, disorganized speech, and impaired functioning.

• Positive symptoms: Hallucinations, delusions.

• Negative symptoms: Flat affect, social withdrawal.

Personality Disorders

• Enduring patterns of behavior and inner experience that deviate from cultural expectations and cause distress or impairment.

• Examples: Borderline, Antisocial, Narcissistic, Avoidant, Schizoid, Histrionic, Obsessive-Compulsive Personality Disorders.

Treatment of Psychological Disorders

Psychotherapy

• Cognitive Behavioral Therapy (CBT): Focuses on changing maladaptive thoughts and behaviors.

• Exposure Therapy: Gradual exposure to feared situations to reduce anxiety.

• Behavioral Activation: Increasing engagement in meaningful activities to combat depression.

• Dialectical Behavior Therapy (DBT): Effective for borderline personality disorder.

Biomedical Treatments

• Medications: Antidepressants, antipsychotics, anxiolytics, mood stabilizers.

• Electroconvulsive Therapy (ECT): Used for severe depression not responsive to other treatments.

Effectiveness and Ethics

• Research shows the therapeutic alliance is a key factor in successful outcomes.

• Randomized Clinical Trials (RCTs) are used to evaluate treatment effectiveness.

• Ethical considerations include informed consent, confidentiality, and avoiding harm.

Summary Table: Major Psychological Disorders

Disorder	Key Features	Treatment
Major Depressive Disorder	Depressed mood, loss of interest, fatigue, guilt	CBT, medication (SSRIs), behavioral activation
Bipolar Disorder	Mood swings between mania and depression	Mood stabilizers, psychotherapy
Generalized Anxiety Disorder	Excessive worry, muscle tension, restlessness	CBT, medication (SSRIs, benzodiazepines)
Schizophrenia	Hallucinations, delusions, disorganized speech	Antipsychotic medication, psychosocial support
Obsessive-Compulsive Disorder	Obsessions, compulsions	CBT (exposure and response prevention), SSRIs

Key Equations and Concepts

• Prevalence Rate: $\text{Prevalence} = \frac{\text{Number of cases}}{\text{Total population}} \times 100$

• Diagnostic Criteria: Symptoms must cause significant distress or impairment and not be due to substance use or another medical condition.

Additional info:

• Some content was expanded for clarity and completeness, including definitions and examples of disorders and treatments.

• Table entries and some explanations were inferred from standard psychology curriculum.