Pedunculopontine nucleus stimulation induces monocular oscillopsia. Issue 2 (16th January 2009)

• Record Type: Journal Article
• Authors: Ferraye, M U; Gerardin, P; Debû, B; Chabardès, S; Fraix, V; Seigneuret, E; LeBas, J-F; Benabid, A-L; Tilikete, C; Pollak, P
• Is Part Of: Journal of neurology, neurosurgery and psychiatry. Volume 80:Issue 2(2009)
• Page Start: 228
• Page End: 231
• Publication Date: 2009-01-16
• Subjects: Neurology -- Periodicals; Nervous system -- Surgery -- Periodicals; Psychiatry -- Periodicals; 616.8
• DOI: 10.1136/jnnp.2008.146472
• Languages: English
• ISSNs: 0022-3050

Abstract

Abstract : 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.