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Related Concept Videos

Classification of Illness01:17

Classification of Illness

The meaning of illness is individualized to each person who experiences an alteration in health. In contrast, disease is a medical term indicating a pathological change in the structure and function of the body or mind. It is a condition that has specific symptoms and boundaries.
An illness is a response to a disease in which the person's level of functioning is changed compared with a previous level. The general classification of illness includes acute and chronic.
Acute illness is severe and...
Introduction to Psychological Disorders01:19

Introduction to Psychological Disorders

Abnormal behavior, often referred to as mental illness, results from changes in brain function that influence thought patterns, behaviors, and social interactions. Psychologists and psychiatrists typically assess abnormal behavior using three primary criteria: deviance, maladaptation, and personal distress, particularly when these traits persist over long periods.
Deviant Behavior
Deviance in behavior refers to actions or thought patterns that significantly diverge from societal norms or...
Theoretical Approaches to Psychological Disorder01:29

Theoretical Approaches to Psychological Disorder

The development of psychological disorders, which are characterized by deviant, maladaptive, and personally distressing behaviors, has been explored through several theoretical approaches.
Biological approach
The biological approach posits that internal, organic factors are the primary causes of such disorders. This perspective emphasizes brain structure and function, genetic predispositions, and neurotransmitter imbalances. For example, schizophrenia has been associated with both genetic...
Diagnostic and Statistical Manual of Mental Disorders (DSM)01:27

Diagnostic and Statistical Manual of Mental Disorders (DSM)

The Diagnostic and Statistical Manual of Mental Disorders (DSM) serves as the primary classification system for mental health disorders, providing standardized diagnostic criteria for clinicians and researchers. First published by the American Psychiatric Association (APA) in 1952, the DSM has undergone several revisions to reflect evolving psychiatric understanding. The fifth edition, DSM-5, released in 2013, introduced key updates that expanded diagnostic categories and modified diagnostic...
Case Studies01:22

Case Studies

There are many research methods available to psychologists in their efforts to understand, describe, and explain behavior and the cognitive and biological processes that underlie it.
Schizophrenia01:17

Schizophrenia

Schizophrenia, a term introduced by Swiss psychiatrist Eugen Bleuler in 1911, describes a severe psychological disorder marked by profound disruptions in attention, thought processes, language, emotion, and interpersonal relationships. The core feature of schizophrenia is psychosis — a state characterized by a fundamental detachment from reality. This disconnection manifests through distorted logic, impaired perception, and atypical behavior, severely affecting the lives of those diagnosed.

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Related Experiment Video

Updated: May 26, 2026

A Multiple Integrated Social Stress Model for Psychiatric Disorders in Female C57BL/6J Mice
06:15

A Multiple Integrated Social Stress Model for Psychiatric Disorders in Female C57BL/6J Mice

Published on: July 15, 2025

Mental illness that is difficult to classify: a case study.

Artemis Igoumenou1, Maria G Turri, Raana Din

  • 1Oxfordshire and Buckinghamshire Mental Health NHS Foundation Trust, Child and Adolescent Neuropsychiatry, Boundary Brook House, Old Road, Oxford OX3 7LQ, UK.

BMJ Case Reports
|December 16, 2011
PubMed
Summary

This case study highlights clozapine

Area of Science:

  • Psychiatry
  • Pharmacology

Background:

  • A patient with a long history of violence, despite a minor index offense, has experienced prolonged psychiatric hospitalization.
  • The patient has received numerous diagnoses throughout their treatment history.
  • Inaccurate diagnoses have led to inadequate treatment and prolonged institutionalization.

Purpose of the Study:

  • To examine the role of clozapine in managing violent behavior and aggression in a long-term psychiatric patient.
  • To explore the potential efficacy of reserpine in managing mental state and reducing violent behavior, drawing parallels with clozapine.
  • To underscore the importance of accurate diagnosis, continuous care, and effective communication in psychiatric treatment.

Main Methods:

  • Case report detailing a patient's extensive psychiatric history and treatment course.

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Published on: July 15, 2025

  • Analysis of the impact of clozapine on the patient's violent behavior and aggression.
  • Historical review of potential treatments, including reserpine, for similar patient profiles.
  • Main Results:

    • Clozapine demonstrated efficacy in ameliorating violent behavior and aggression.
    • The patient's history suggests reserpine may have offered similar benefits regarding mental state and violence reduction.
    • The case illustrates the negative consequences of diagnostic inaccuracies and the benefits of appropriate antipsychotic treatment.

    Conclusions:

    • Clozapine can be effective in managing severe aggression and violence in psychiatric patients.
    • Accurate diagnosis and continuous, well-communicated care are crucial for improving patient quality of life and preventing institutionalization.
    • Antipsychotic medications play a vital role in controlling violence, potentially preventing long-term hospitalization.