The Third Category of Mental Disorders

  • Youxin XuEmail author

Based on the present status of our clinical knowledge of psychiatry, we can roughly divide mental disorders into three major categories: organic mental disorders, psychotic disorders and nonorganic, nonpsychotic mental disorders.

Organic Mental Disorders

The first category, encompassing all sorts of organic mental disorders, can be further divided into three subcategories.
  1. 1.

    Mental disorders due to brain diseases, brain injuries, or developmental brain disorders

  2. 2.

    Mental disorders due to physical or medical diseases

  3. 3.

    Mental disorders due to psychoactive substance use


Psychotic Disorders

The second category, covering various kinds of psychotic disorders, has three subcategories as well.
  1. 1.

    Paranoid or delusional disorder

  2. 2.

    Manic-depressive illness. The depressive phase (especially in unipolar depression) should possess the following characteristics: (a) markedly depressed mood with (b) psychomotor retardation. The course of the disease shows an episodic pattern; in other...


Mental Disorder Personality Disorder Psychotic Disorder Borderline Personality Disorder Phobic Disorder 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. APA (American Psychiatric Association) 1994 Diagnostic and Statistical Manual (DSM-IV), 4th ed. Washington, DC: American Psychiatric Association.Google Scholar
  2. Hamilton, M. 1990 Foreword. In Dysthymic Disorder. S.W. Burton and H.S. Akiskal, eds. Gaskell: Royal College of Psychiatry.Google Scholar

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Institute of Mental HealthBeijing UniversityBeijingPeople’s Republic of China

Personalised recommendations