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catatonic schizophrenia

in DSM–IV–TR, a relatively rare subtype of schizophrenia characterized by abnormal motor activity, specifically motor immobility (see catalepsy; catatonic stupor) or excessive motor activity (see catatonic excitement). Other common features include extreme negativism (apparently motiveless resistance to all instructions or maintenance of a rigid posture against attempts to be moved) or mutism; peculiarities of voluntary movement, such as posturing or stereotyped movements; and echolalia or echopraxia. This subtype has been eliminated from DSM–5.

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Psychology term of the day

May 21st 2024

chronic pain

chronic pain

pain that continues to occur despite all medical and pharmacological efforts at treatment. In many cases, the pain is initially caused by tissue damage or disease. The continuation of the pain is often the result of pathological changes in the central nervous system.