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Abnormal psychology 1/6 https://en.wikipedia.org/wiki/Abnormal_psychology reference science, encyclopedia 2026-05-05T15:09:52.382394+00:00 kb-cron

Abnormal psychology is the branch of psychology that studies unusual patterns of behavior, emotion, and thought, which could possibly be understood as a mental disorder. Although many behaviors could be considered abnormal, this branch of psychology typically addresses behavior in a clinical context. There is a long history of attempts to understand and control behavior deemed to be aberrant or deviant (statistically, functionally, morally, or in some other sense), and there is often cultural variation in the approach taken. The field of abnormal psychology identifies multiple causes for different conditions, drawing on diverse theories from the broader field of psychology and beyond, and much still hinges on what exactly is meant by "abnormal". There has traditionally been a divide between psychological and biological explanations, reflecting a philosophical dualism regarding the mindbody problem. There have also been different approaches in trying to classify mental disorders. Abnormal includes three different categories; they are subnormal, supernormal and paranormal. The science of abnormal psychology studies two types of behaviors: adaptive and maladaptive behaviors. Maladaptive behaviors suggest that some problem(s) exist and can also imply that the individual is vulnerable and unable to cope with environmental stress, leading to difficulties functioning in daily life across emotions, thinking, physical actions, and speech. Adaptive behaviors are well-suited to the nature of people, their lifestyles and surroundings, and the people they communicate with, allowing them to understand each other. Clinical psychology is the applied field of psychology that seeks to assess, understand, and treat psychological conditions in clinical practice. The theoretical field known as abnormal psychology may form a backdrop to such work. Still, clinical psychologists in the field are unlikely to use the term 'abnormal' in reference to their practice. Psychopathology is a similar term to abnormal psychology, but may have more of an implication of an underlying pathology (disease process), which assumes the medical model of mental disturbance and as such, is a term more commonly used in the medical specialty known as psychiatry.

== History ==

=== Humors ===

Hippocrates (460377 BCE) hypothesized that the body and mind become unwell when the so-called humors, vital fluids in the body, become unbalanced. The four temperaments theory posits four such humors: black bile, yellow bile, phlegm, and blood. Each humor was associated with a particular temperament: too much phlegm causes a person to be fatigued, too much black bile causes melancholia, yellow bile causes a quick temper, and too much blood causes optimism, cheerfulness, and confidence.

=== Asylums === The act of placing individuals with mental illness in a separate facility known as an asylum dates to 1547, when King Henry VIII of England established the St. Mary of Bethlehem asylum in London. This hospital, nicknamed Bedlam, was famous for its deplorable conditions. Asylums remained popular throughout the Middle Ages and the Renaissance era. These early asylums often had miserable conditions. Patients were seen as a "burden" to society, locked away and treated almost like beasts to be dealt with, rather than patients needing treatment. However, many of the patients received helpful medical treatment. There was scientific curiosity into abnormal behavior, although it was rarely investigated in the early asylums. Inmates in these early asylums were often put on display for profit, as they were viewed as less than human. The early asylums were basically modifications of the existing criminal institutions. In the late 18th century, the idea of humane treatment for patients gained favor due to the work of Philippe Pinel in France. He pushed for the idea that the patients should be treated with kindness, and not the cruelty inflicted on them, as if they were animals or criminals. His experimental ideas, such as removing the chains from the patients, were met with reluctance. The experiments in kindness proved a great success, helping reform how mental institutions would be run. Institutionalization would continue to improve throughout the 19th and 20th centuries, as a result of the work of many humanitarians such as Dorothea Dix and the mental hygiene movement, which promoted the physical well-being of people with mental health conditions. "Dix, more than any other figure in the nineteenth century, made people in America and virtually all of Europe aware that the insane were being subjected to incredible abuses." Through this movement, millions of dollars were raised to build new institutions to house the mentally ill. Mental hospitals grew substantially in number during the 20th century as care for the mentally ill increased. By 1939, there were over 400,000 patients in state mental hospitals in the US. Hospital stays were normally quite long for the patients, with some individuals being treated for many years. These hospitals, while better than the asylums of the past, still lacked the means to provide effective treatment for patients. Even though the reform movement had occurred, patients were often still met with cruel and inhumane treatment. Things began to change in 1946, when Mary Jane Ward published the influential novel The Snake Pit, which was adapted into a popular movie of the same name. The book called attention to the conditions that people with a mental health condition faced, and helped to spark concern in the general public to create more humane mental health care in these overcrowded hospitals. That same year, the National Institute of Mental Health was also created, providing support for training hospital employees and research into patients' conditions. During this period, the HillBurton Act was also passed, a program that funded mental health hospitals. Along with the Community Health Services Act of 1963, the HillBurton Acts helped create outpatient psychiatric clinics, inpatient general hospitals, and rehabilitation and community consultation centers.