Catatonic Type Schizophrenia

**Semantic type:** Mental or Behavioral Dysfunction

**Definition:** A subtype of schizophrenia characterized by a psychomotor disturbance that may involve motoric immobility, excessive motor activity, extreme negativism or mutism, peculiarities of voluntary movement, echolalia, and/or echopraxia.

**Synonyms:** - Catatonic schizophrenia