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Video 1 3D video oculography of the right eye during fixation to a LED target, initially in primary gaze and then during fixation 15° to the right, left and back to centre. Note the large, asymmetric, torsional, ‘rotatory’ nystagmus, which is larger and faster to the left (clockwise from the observer’s point of view). (M4 V 15114 kb)
Video 2 Non-periodic palatal tremor (~2 Hz) with synchronous oscillations of the posterior pharyngeal wall muscles. (M4 V 5399 kb)
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Papachatzaki, M.M., Ali, N., Arshad, Q. et al. Progressive ataxia with oculo-palatal tremor and optic atrophy. J Neurol 260, 2903–2905 (2013). https://doi.org/10.1007/s00415-013-7136-3
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DOI: https://doi.org/10.1007/s00415-013-7136-3