It is the branch of science that studies mental health and disorders. It diagnoses and treats disorders of thought, emotion, and behavior.
This field deals with and provides rehabilitation for the following conditions:
Schizophrenia
Delusional (Paranoid) Disorders
Mood Disorders
Neurotic Disorders
Personality Disorders
Sexual Adjustment Disorders
Physiological Functional or Structural Disorders Caused by Psychological Factors
Organic Mental Disorders
Substance-Related Disorders