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Grasp reflex

System: Neurological Signs · All neurological signs

What it is — and how it is elicited

Stroking across the palm makes the hand grip involuntarily and hold on, even when the patient tries to let go.

What a positive finding suggests

An infantile reflex whose return in adults is associated with frontal lobe dysfunction.

Related signs — Neurological Signs

Abdominal reflexesArgyll Robertson pupilBabinski signBattle's signBeevor's signBrisk jaw jerk

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Please note: This page is an educational reference about clinical examination signs. A clinical sign supports — and never replaces — a full clinical evaluation, examination and appropriate testing. A sign being present does not by itself prove a diagnosis, and an absent sign does not rule one out. If you have symptoms that worry you, see a health professional.