The Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) describes brief psychotic disorder based primarily on duration of symptoms. DSM-IV defines brief psychotic disorder as an illness lasting from 1 day to 1 month, with an eventual return to the premorbid level of functioning. Brief psychotic disorder is uncommon. Preexisting personality disorders (eg, paranoid, histrionic, narcissistic, schizotypal, borderline) predispose to its development. A major stressor, such as loss of a loved one, may precipitate the disorder.
The sufferer must have one of the following symptoms:
- grossly disorganized or catatonic behavior,
- or disorganized speech.
Diagnostic Criteria for Brief Psychotic Disorder
- Presence of one (or more) of the following symptoms:
- disorganized speech (e.g., frequent derailment or incoherence)
- grossly disorganized or catatonic behavior
Note: Do not include a symptom if it is a culturally sanctioned response pattern.
- Duration of an episode of the disturbance is at least 1 day but less than 1 month, with eventual full return to premorbid level of functioning.
- The disturbance is not better accounted for by a Mood Disorder With Psychotic Features, Schizoaffective Disorder, or Schizophrenia and is not due to the direct physiological effects of a substance (e.g., a drug of abuse, a medication) or a general medical condition.