Journal
JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY
Volume 80, Issue 2, Pages 228-231Publisher
BMJ PUBLISHING GROUP
DOI: 10.1136/jnnp.2008.146472
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- Michael J Fox Foundation
- Fondation de France
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Two patients with Parkinson's disease with pedunculopontine nucleus (PPN) stimulation for gait impairments reported trembling vision during the setting of the electrical parameters, although there was no clinically observable abnormal eye movement. Oculomotor recordings revealed frequency locked voltage dependent vertical or oblique movements of the eye ipsilateral to the active contact, suggesting current spreading to the mesencephalic oculomotor fibres. These results emphasise the difficulty of stimulating this mesencephalic region.
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