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Vibration-induced nystagmus in a patient with a vestibular schwannoma that was removed 40 years ago

Legend: Vibration is applied on the right mastoid process and then on the left mastoid process. Vibration on either side elicits left-beat nystagmus, consisting of rightward drift (slow phase of nystagmus toward the side of vestibular weakness) and leftward saccade (fast phase of nystagmus away from the side of vestibular weakness).

Duration: 0:46

Associated with: CONTINUUM: Lifelong Learning in Neurology. 27(2):330-347, April 2021

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