gegenhalten

gegenhalten /ge·gen·hal·ten/ (ga″gen-hahl´tin) [Ger.] an involuntary resistance to passive movement, as may occur in cerebral cortical disorders.

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gegenhalten

[gā′gənhäl′tən]

Etymology: Ger, counterpressure

the involuntary resistance to passive movement of the extremities. It may occur as a symptom of catatonia, in which there is passive resistance to stretching movements, even when the patient attempts to cooperate. The effect may be psychogenic in origin or may be a sign of dementia or cerebral deterioration. Also called paratonia.

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Gegenhalten

Involuntary ('active') resistance to passive movement, that increases with velocity of movement and continues through the full arc of motion; gegenhalten may be due to diffuse forebrain dysfunction, as occurs in anterior cerebral artery occlusion—‘arteriosclerotic parkinsonism’—or pseudoparkinsonism, and may be accompanied by grasp reflex

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gegenhalten [ga″gen-hahlt´en] (Ger.)

an involuntary resistance to passive movement as may occur in cerebral cortical disorders.

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gegenhalten

Neurology Involuntary resistance to passive movement, that ↑ with velocity of movement and continues through the full arc of motion; gegenhalten may be due to diffuse forebrain dysfunction, as occurs in anterior cerebral artery occlusion–'arteriosclerotic parkinsonism' or pseudoparkinsonism, and may be accompanied by the grasp reflex. Cf Clasp-knife phenomenon, Cogwheel rigidity.