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Research in Vestibular Science > Volume 11(0); 2012 > Article
Research in Vestibular Science 2012;11(0): 73-79.
초보자를 위한 전정안반사
원광대학교 의과대학 생리학교실
Understanding of VOR for the Beginner
Byoung Youn Ko, Kyu Sung Kim, Hee Kwun Park
Department of Otolaryngology-Head and Neck Surgery and Neurology, Inha University School of Medicine, Incheon, Korea. stedman@inha.ac.kr
Vestibulo-ocular reflex is a reflex eye movement that stabilizes images on the retina during head movement by producing an eye movement in the direction opposite to head movement, thus preserving the image on the center of the visual field. The peripheral vestibular receptors which detect head movement transduce the physical stimulus into electrical signals and send the signals to the vestibular nuclei in the beainstem via the vestibular nerve. From these nuclei, fibers project to the ocular motor nuclei which contain motoneurons that drive extraocular muscle activity. Characteristics of anatomy and physiology of the vestibulo-ocular system, stimulation of the vestibular system, measurement and analysis of eye movement, and clinical significance of the vestibule-ocular reflex were described as followings.
Keywords: Parkinson disease; Eye movement; Dizziness; Saccades
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