extreme tonus; muscular rigidity; a common symptom in catatonic schizophrenia
a form of schizophrenia characterized by a tendency to remain in a fixed stuporous state for long periods; the catatonia may give way to short periods of extreme excitement
A severe psychiatric condition, often associated with schizophrenia, characterized by a tendency to remain in a rigid state of stupor for long periods which give way to short periods of extreme agitation.