Diagnostic Criteria
According to the DSM-IV, the "With catatonic features" specifier can be applied if the clinical picture is dominated by at least two of the following:
- motor immobility as evidenced by catalepsy (including waxy flexibility) or stupor
- excessive motor activity (purposeless, not influenced by external stimuli)
- extreme negativism (motiveless resistance to all instructions or maintenance of a rigid posture against attempts to be moved) or mutism
- peculiarities of voluntary movement as evidenced by posturing, stereotyped movements, prominent mannerisms, or prominent grimacing
- echolalia or echopraxia
Read more about this topic: Catatonia
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