n. one extreme end of the catatonic state (catatonia). It is characterized by a marked decrease in response to stimuli and spontaneous movement. As such, the patient remains motionless and rigid. The posture itself appears to be statuesque, and the facial expression described as bizarre.

CATATONIC STUPOR: "A patient with catatonic schizophrenia could occasionally go into a phase of catatonic stupor over a prolonged period of time."