Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Magnetism (neurological sign)
Introduction
Overview
Magnetism is a physical sign in neurology. It is chiefly demonstrated by patients with degenerative syndromes such as corticobasal degeneration (CBD). When the examiner’s hand is placed close to that of the patient, then withdrawn or moved slowly from side to side, the patient’s hand involuntarily follows that of the examiner.
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]