The Head Snap: A Subtle Clinical Feature During the Finger–Nose–Finger Maneuver in Essential Tremor

摘要

BackgroundEssential tremor is characterized by several hyperkinetic movements, including arm and head tremors. We report another movement of the head in patients with essential tremor, which we term the “head snap.” This was observed as a jerking motion of the head in some patients while they performed the finger–nose–finger maneuver.