DSM-5 diagnostic criteria for catatonia
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Stupor no psychomotor activity; not actively relating to environment)
No
Yes
Catalepsy passive induction of a posture held against gravity)
No
Yes
Waxy flexibility slight, even resistance to positioning by examiner)
No
Yes
Mutism no, or very little, verbal response; exclude if known aphasia)
No
Yes
Negativism opposition or no response to instructions or external stimuli)
No
Yes
Posturing spontaneous and active maintenance of a posture against gravity)
No
Yes
Mannerism odd, circumstantial caricature of normal actions)
No
Yes
Stereotypy repetitive, abnormally frequent, non-goal-directed movements)
No
Yes
Agitation not influenced by external stimuli)
No
Yes
Grimacing
No
Yes
Echolalia mimicking another's speech)
No
Yes
Echopraxia mimicking another's movements)
No
Yes
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