Abnormalities of torsional fast phase eye movements in unilateral rostral midbrain disease

Author:

Riordan-Eva P.,Faldon M.,Buttner-Ennever J. A.,Gass A.,Bronstein A. M.,Gresty M. A.

Abstract

In a patient with a unilateral rostral midbrain lesion, three-dimensional scleral search coil eye movement recordings demonstrated slowing of ipsidirectional torsional fast phase eye movements without any abnormalities of torsional slow phases. On high-resolution MRI, the brainstem lesion localized to the area of the efferent pathways from the rostral interstitial nucleus of the medial longitudinal fasciculus (riMLF). This supports the experimental finding that unilateral inactivation of the riMLF results in a loss of ipsidirectional torsional fast phase eye movements and the hypothesis that there is lateralization of function throughout the torsional fast eye movement generating system.NEUROLOGY 1996;47: 201-207

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Neurology (clinical)

Reference19 articles.

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2. Henn V, Pathophysiology of rapid eye movements in the horizontal, vertical and torsional directions. In: Buttner U, Brandt Th, eds. Ocular motor disorders of the brainstem, Bailliere's clinical neurology, vol. 1, no. 2. London: Bailliere, 1992:373-391.

3. THE CLINICAL FEATURES AND CLASSIFICATION OF THE LATE ONSET AUTOSOMAL DOMINANT CEREBELLAR ATAXIAS

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