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Psychological Disorders: History, Diagnosis, and the Justice System

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Psychological Disorders and the Justice System

Introduction to Psychological Disorders

Psychological disorders, also known as mental disorders, are patterns of behavior or experience that cause distress, impair day-to-day functioning, or increase the risk of harm. The study of these disorders is essential for understanding their impact on individuals and society, as well as their intersection with the justice system.

Historical Conceptions of Mental Illness

The understanding and treatment of mental illness have evolved significantly over time, reflecting changes in cultural, scientific, and medical perspectives.

  • Demonic Model (Middle Ages): Mental illness was often attributed to possession by evil spirits. Treatments included exorcisms and witch hunts.

  • Medical Model (Renaissance): Mental illness began to be seen as a physical disorder requiring medical treatment. Patients were housed in asylums, which were often overcrowded and used ineffective treatments such as bloodletting and 'snake pits.'

  • Moral Treatment (1700s–1800s): Reformers like Philippe Pinel and Dorothea Dix advocated for treating patients with dignity and kindness, allowing them more freedom and interaction, though effective treatments were still lacking.

Exorcism as treatment for mental illness Historical bloodletting treatment Philippe Pinel removing chains from asylum patients

The Modern Era of Mental Health Care

  • Pharmacological Advances: The development of antipsychotic medications like chlorpromazine (Thorazine) in the 1950s moderately decreased symptoms of schizophrenia and similar disorders.

  • Deinstitutionalization (1960s–1970s): Large numbers of patients were released from psychiatric hospitals, which were closed. However, community support services were often lacking, leading to mixed outcomes.

Thorazine bottle, early antipsychotic medication Cartoon on deinstitutionalization outcomes

Defining Mental Illness

The DSM-5 (Diagnostic and Statistical Manual of Mental Disorders, 5th Edition) is the official classification system for mental disorders. It provides diagnostic criteria and decision rules, emphasizing the need to rule out medical or substance-related causes first. The DSM-5 uses a biopsychosocial approach that considers biological, psychological, and social factors.

  • Biological factors: Brain chemistry, genetics, neurodevelopment, and physical health.

  • Psychological factors: Cognitive patterns, emotional regulation, personality, coping skills.

  • Social factors: Environment, culture, family dynamics, socioeconomic status.

Diagnosis Across Cultures

Certain mental disorders are culture-bound, while others (e.g., schizophrenia, alcoholism, psychopathy) are universal. Culture influences how symptoms are expressed and understood.

  • Examples: Malocchio (Italy) – headaches and anxiety attributed to envy; Taijin Kyofusho (Japan) – social anxiety focused on offending others.

Major Categories of Psychological Disorders

Anxiety-Related Disorders

These disorders are characterized by distressing, persistent anxiety or maladaptive behaviors that reduce anxiety. They include:

  • Generalized Anxiety Disorder (GAD): Continual worry, tension, and irritability about many areas of life.

  • Panic Disorder: Repeated, unexpected panic attacks and persistent concern about future attacks.

  • Phobias: Unrealistic fear of specific situations, activities, or objects (e.g., agoraphobia).

  • Obsessive-Compulsive Disorder (OCD): Intrusive thoughts (obsessions) and ritualistic behaviors (compulsions) to reduce distress.

  • OCD-Related Disorders: Hoarding, excoriation (skin picking), trichotillomania (hair pulling), body dysmorphic disorder.

Symptoms of anxiety disorder

Mood Disorders

Mood disorders include depression and bipolar disorder, affecting nearly 10% of adults in North America. Depression is more common in women and those living in poverty, with genetic, environmental, and sociocultural risk factors.

  • Major Depression: Periods of sadness, worthlessness, social withdrawal, and cognitive/physical sluggishness.

  • Bipolar Disorder: Extreme shifts in mood, motivation, and energy, with periods of depression and mania.

Mood disorders prevalence Depressive explanatory style Genetic and stress interaction in depression Twin studies on depression risk

Schizophrenia

Schizophrenia involves significant breaks from reality, disorganized thinking, and problems with attention and memory. Symptoms are classified as:

  • Positive symptoms: Hallucinations, delusions, thought disorder, movement disorder.

  • Negative symptoms: Absence of adaptive behavior (e.g., emotional withdrawal).

  • Disorganized behavior and cognition.

Biological factors include larger brain ventricles, reduced frontal lobe activity, and neurotransmitter imbalances (dopamine overactivity, glutamate underactivity). Environmental factors include extreme stress, low socioeconomic status, minority status, prenatal environment, and cannabis use.

Brain structure differences in schizophrenia

Personality Disorders

Personality disorders are enduring patterns of behavior that are maladaptive, distressing, and resistant to change. They are grouped into three clusters:

  • Cluster A: Odd or eccentric behavior (e.g., paranoid, schizoid).

  • Cluster B: Dramatic, emotional, or erratic behavior (e.g., antisocial, borderline, narcissistic).

  • Cluster C: Anxious, fearful, or inhibited behavior (e.g., avoidant).

Borderline Personality Disorder: Marked by intense emotional swings, unstable sense of self, impulsivity, and difficult relationships, often rooted in early trauma.

Antisocial Personality Disorder (APD): Characterized by lack of empathy, disregard for others' rights, and a tendency toward manipulation or violence. Often linked to conduct disorder, frontal lobe dysfunction, and trauma.

Uncommon Psychiatric Syndromes

  • Capgras’s Syndrome: Belief that a loved one has been replaced by an impostor.

  • Ekbom’s Syndrome: Delusions of infestation.

  • Munchausen Syndrome: Fabrication of medical symptoms for attention or care.

Mental Illness and the Justice System

Mental illness intersects with the justice system in several ways, including fitness to stand trial, the insanity defense, and the development or exacerbation of mental health issues within correctional settings.

  • NCRMD (Not Criminally Responsible by Reason of Mental Disorder): A legal defense where mental illness negates the intent (mens rea) required for criminal guilt. The Canadian Criminal Code (S. 16) specifies that a person is not criminally responsible if, at the time of the offense, they were incapable of appreciating the nature and quality of the act or knowing it was wrong due to mental disorder.

  • Possible Outcomes: Absolute discharge, conditional discharge, or detention in a hospital, determined by a Review Board based on risk and treatment needs.

  • Myths: NCRMD is rarely used, not a loophole, and does not result in quick release. Most individuals spend longer in institutions than they would in jail.

Prisoner with 'HOPE' tattooed on fingers behind bars Historic court case involving DID

Mental Health in Correctional Settings

Mental illness is significantly more prevalent in correctional populations than in the general public. Prisons are often ill-equipped to provide adequate mental health care, and harsh conditions such as solitary confinement can exacerbate symptoms or cause new psychological harm.

  • Approximately 70% of federally incarcerated individuals report mental health symptoms.

  • Suicide rates in prison are much higher than national averages.

  • Solitary confinement can cause hallucinations, cognitive disabilities, insomnia, self-harm, paranoia, and suicidal tendencies, and may cause neurological changes.

Advocacy and Support

Several organizations work to support individuals with mental illness and advocate for humane treatment within the justice system, including the John Howard Society, Fred Victor, Elizabeth Fry Society, Addictions and Mental Health Ontario (AMHO), CMHA, and CAMH.

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