Definition

Brief psychotic disorder is a short-term, time-limited disorder. An individual with brief psychotic disorder has experienced at least one of the major symptoms of psychosis for less than one month. Hallucinations, delusions, strange bodily movements or lack of movements (catatonic behavior), peculiar speech and bizarre or markedly inappropriate behavior are all classic psychotic symptoms that may occur in brief psychotic disorder.

The cause of the symptoms helps to determine whether or not the sufferer is described as having brief psychotic disorder. If the psychotic symptoms appear as a result of a physical disease, a...