Undifferentiated Schizophrenia is a severe and chronic mental disorder that is caused by a physical breakdown of mental processes that results in a loss of normal emotional responses. Symptoms include auditory hallucinations (hearing voices), bizarre or paranoid delusions (strange and compelling beliefs), and disorganized thought or speech.
Undifferentiated Schizophrenia is different from Paranoid Schizophrenia in that undifferentiated lacks the paranoid symptoms (sense of persecution) that is part of paranoid schizophrenia. The onset of this disease process usually starts in young adulthood (late teens or early twenties). The specific causes are not clearly understood although there is evidence that genetics, early environment, neurobiology and psychological factors may all be contributing factors to this condition.