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jws-mds.20500.vid.mpg7268K Voluntary horizontal gaze, first to the left and then to the right, is followed by demonstration of the vestibulo-ocular reflex (VOR) in our patient. There is failure of right eye adduction on left gaze and a lag in left eye adduction on right gaze, but unrestricted horizontal movements are seen with VOR stimulation. This video presentation has been abbreviated. The full version will appear on theMovementDisorders DVD Supplement, which is issued bi-annually.

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