Common subtypes of schizophrenia (without clearcut differentiation):
disorganized type disordered, thinking (“word salad”), inappropriate affect (blunted, silly), regressive behavior, incoherent speech, preoccupied and withdrawn.
catatonic type disorder of muscle tension, with rigidity waxy flexibility, posturing, mutism, violent rage outbursts, negativism, and frenzied activity. Marked decrease in involvement with environment and in spontaneous movement.
paranoid type disturbed perceptions leading to disturbance in thought content of persecutory, grandiose, or hostile nature; projection is key mechanism, with religion a common preoccupation.
residual continued difficulty in thinking, mood, perception, and behavior after schizophrenic episode.
undifferentiated type unclassifiable schizophrenic like disturbance with mixed symptoms of delusions, hallucinations, incoherence, gross disorganization.