Brief reactive psychosis

Definition:

A sudden display of psychotic behavior that lasts at least several hours but less than 1 week.

Causes, incidence, and risk factors:

Brief reactive psychosis is usually caused by some type of stress. It may be brought on by severe stress, such as the death of a loved one. The person may or may not be aware of the bizarre behavior. Usually symptoms appear rapidly, then disappear rapidly. The incidence of brief reactive psychosis is unknown.