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Related to organic psychosis: functional psychosis
Psychosis induced by structural brain changes. Emotional instability, irritability, angry outbursts, and inattention are typical symptoms. At any time in the course of the disease, memory, comprehension, ideation, and orientation may become defective. Possible causes include alcohol, narcotics, trauma, syphilis, drugs, poisons, chronic infections, encephalitis, and brain tumors, among many others.
See also: psychosis