Patients with this subtype of Schizophrenia may exhibit extremes of behavior including catatonia. Some may allow there posture to be rearranged, holding the new position (catalepsy or waxy flexibility). Others may imitate sounds (echolalia) or movements (echopraxia) of others.
Catatonic Schizophrenia
(dementia paratonita progressiva, paratonita progressiva)