Psychological Disorders

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 human behavior, mental health, and the intersection with societal systems such as the justice system.

Historical Conceptions of Mental Illness

Demonic Model and Superstition

During the Middle Ages, mental illnesses were often attributed to supernatural causes, such as demonic possession. Treatments included exorcisms and witch hunts, reflecting a lack of scientific understanding.

The Medical Model and Asylums

With the Renaissance, the medical model emerged, viewing mental illness as a physical disorder requiring treatment. Patients were housed in asylums, which were often overcrowded and understaffed. Common treatments included bloodletting and the use of 'snake pits.'

Moral Treatment Movement

Reformers like Philippe Pinel and Dorothea Dix advocated for moral treatment in the 18th and 19th centuries, emphasizing dignity, kindness, and respect for patients. Although this improved conditions, effective treatments were still lacking.

The Modern Era and Deinstitutionalization

The development of antipsychotic medications such as chlorpromazine (Thorazine) in the 1950s led to the deinstitutionalization movement in the 1960s and 70s. Many patients were released from hospitals, but community support systems were often inadequate, leading to mixed outcomes.

Defining Mental Illness

Criteria for Mental Disorders

The DSM (Diagnostic and Statistical Manual of Mental Disorders) defines mental disorders as patterns of behavior or experience that cause distress, impair functioning, or increase risk of harm. However, this definition is not perfect, as some maladaptive behaviors may not be mental illnesses, and some individuals may not meet all criteria but still require help.

Diagnosis Across Cultures

Culture-Bound Syndromes

Certain mental disorders are specific to particular cultures, while others (e.g., schizophrenia, alcoholism, psychopathy) are universal. Examples include:

• Malocchio (Italy): Headaches, fatigue, and anxiety attributed to envy or the 'evil eye.'

• Calor do corpo/nervos (Portugal/Brazil): Fatigue and anxiety explained by bodily imbalance or 'nerves.'

• Taijin Kyofusho (Japan): Social anxiety focused on the fear of offending others, reflecting collectivist cultural values.

The DSM-5 and the Biopsychosocial Model

DSM-5: Classification and Controversies

The DSM-5 is the official classification system for mental disorders, providing diagnostic criteria and decision rules. It encourages clinicians to rule out medical or substance-related causes first. The number of recognized disorders has increased significantly over time, raising concerns about over-diagnosis and the influence of insurance requirements.

Biopsychosocial Model

This model considers biological, psychological, and social factors in the development and maintenance of mental disorders:

• Biological: Brain chemistry, genetics, neurodevelopment, physical health

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

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

Major Categories of Psychological Disorders

Anxiety-Related Disorders

These disorders are characterized by excessive and persistent anxiety or maladaptive behaviors that reduce anxiety. Types include:

• Generalized Anxiety Disorder (GAD): Chronic 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).

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

Mood Disorders

Mood disorders include depression and bipolar disorder, affecting mood, motivation, and energy. Major depression is marked by persistent sadness, hopelessness, and physical symptoms. Bipolar disorder involves alternating periods of depression and mania.

• Major Depression: Sadness, worthlessness, social withdrawal, cognitive and physical sluggishness.

• Bipolar Disorder: Extreme mood shifts, including manic episodes with high energy and impulsivity.

Schizophrenia

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

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

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

• Disorganized: Disorganized behavior and cognitive functioning

Personality Disorders

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

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

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

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

Mental Illness and the Justice System

Intersection of Mental Health and Law

Mental illness can influence legal outcomes, such as fitness to stand trial and the insanity defense. The legal concept of 'Not Criminally Responsible by Reason of Mental Disorder' (NCRMD) is based on the inability to appreciate the nature or wrongfulness of an act due to mental disorder.

NCRMD in Practice

Outcomes after an NCRMD finding include absolute discharge, conditional discharge, or detention in a hospital. Decisions are made by a Review Board based on risk to public safety and treatment needs. Myths about NCRMD include its frequency, effectiveness as a loophole, and the danger posed by mentally ill individuals.

Mental Health in Correctional Settings

Mental illness is significantly more prevalent in correctional populations than in the general public. Prisons often lack adequate mental health services, and practices such as solitary confinement can have profound psychological and neurological effects, including hallucinations, cognitive disabilities, and increased risk of suicide.

Conclusion

Understanding psychological disorders requires a multidisciplinary approach, considering historical, cultural, biological, psychological, and social factors. The intersection of mental health and the justice system highlights the importance of appropriate diagnosis, treatment, and legal protections for individuals with mental illness.