Psychological Disorders and Classification Study Pack

The Three Ds: Distress, Dysfunction, and Deviance

• •Distress refers to subjective suffering — the individual experiences significant emotional or psychological pain such as persistent sadness, paralyzing fear, or uncontrollable anxiety.
• •Dysfunction means the symptoms interfere with important areas of life functioning, including work performance, social relationships, or basic self-care.
• •Deviance refers to thoughts, feelings, or behaviors that violate the norms of a person's cultural context; however, deviance alone does not constitute disorder — cultural standards vary widely.

The Harmful Dysfunction Model

• •Jerome Wakefield proposed that a condition qualifies as a disorder only when it is both harmful (causes distress or impairment the person wants to relieve) and represents a dysfunction (a failure of a mental mechanism to operate as evolution shaped it to operate).
• •This two-part test prevents over-pathologizing behaviors that are merely unusual or socially undesirable without genuine underlying impairment.

The Role of Cultural Context

• •Behaviors considered disordered in one culture may be normative or even valued in another, so clinicians must distinguish culture-specific expressions of distress from universal disorder criteria.
• •The DSM-5 includes cultural concepts of distress — locally recognized syndromes (such as ataque de nervios in Latin American communities) that do not map neatly onto Western diagnostic categories.

• •Supernatural and Spiritual Explanations (Antiquity to the Middle Ages)
• •Ancient cultures across Mesopotamia, Egypt, Greece, and Rome frequently attributed unusual mental states to demonic possession, divine punishment, or spiritual imbalance.
• •Treatments rooted in these beliefs included exorcism, prayer, trephination (drilling holes in the skull to release evil spirits), and isolation.
• •During the European Middle Ages, individuals with mental illness were sometimes accused of witchcraft, a belief that persisted into the early modern period.
• •Humoral and Early Medical Models (Ancient Greece to the Renaissance)
• •Greek physicians, particularly Hippocrates, proposed that mental illness had natural causes rooted in imbalances among four bodily fluids — blood, phlegm, yellow bile, and black bile.
• •An excess of black bile, according to this framework, caused melancholia (what we would now recognize as depression), while excess yellow bile produced mania.
• •Galen later expanded Hippocratic medicine, and humoral thinking remained influential in European medicine for over a millennium.

Asylum Era and Moral Treatment (18th–19th Centuries)

• •Beginning in the 1600s and expanding through the 1800s, European and American societies institutionalized people with severe mental illness in asylums, which often became overcrowded and abusive facilities.
• •Philippe Pinel in France and William Tuke in England championed moral treatment — a reform movement arguing that patients deserved humane care, structured routine, and social engagement rather than chains and punishment.
• •Dorothea Dix led a parallel reform campaign in the United States during the mid-1800s, successfully lobbying for improved state institutions for people with mental illness.
• •Emergence of Psychological and Biomedical Models (Late 19th–20th Centuries)
• •Sigmund Freud's psychoanalytic theory proposed that unconscious conflicts — often rooted in early childhood — produced neurotic symptoms, shifting attention toward psychological causes.
• •Emil Kraepelin's systematic classification of psychiatric conditions in the late 19th century laid the groundwork for modern diagnostic systems by grouping disorders by observable symptom patterns and course of illness.
• •The discovery of biological treatments — including antipsychotic medications in the 1950s — reinforced the biomedical model and transformed psychiatric practice.