Head-shaking (20 seconds horizontal)Test
Head-shaking nystagmus
A transient nystagmus released by vigorous head-shaking.
Head-shaking (20 seconds horizontal)Live
After about twenty seconds of brisk horizontal head-shaking, a stored vestibular imbalance can release a short-lived nystagmus. A horizontal beat toward the stronger ear fits a peripheral loss; a cross-coupled response, such as a vertical beat after horizontal shaking, suggests a central lesion. It is a provoking test, not a localiser on its own.
Source: Leigh & Zee; Hain (head-shaking nystagmus).
Other signs
Stylised teaching animations authored by NeuroDash. Not real-patient recordings, not board-certified, and not reviewed by an outside specialist. Educational only — not medical advice or a diagnosis.