Fixation Suppression of Vestibulo-ocular Reflex in Elderly Patients with Disequilibrium: Significance of Cerebral Lesions on MRI

• Murai Norihiko

  Department of Otolaryngology, Matsue City Hospital

• Oda Naoharu

  Department of Otolaryngology, Matsue City Hospital

Bibliographic Information

Other Title

• 高齢めまい患者のＭＲＩ上の大脳病変と前庭眼反射固視抑制

Abstract

In this retrospective study, the authors asked whether the presence of cerebral lesions (lacunar infarcts and/or white matter lesions) on magnetic resonance images (MRI) affected vestibulo-ocular reflex (VOR) gain, fixation-suppressed VOR (fVOR) gain, and visual suppression rate (VSR) in 46 elderly patients with disequilibrium symptoms treated at Department of Otolaryngology, Matsue City Hospital between January 2004 and December 2004. The VOR and fVOR were examined with manually-rotated sinu-soidal stimuli using an infrared camera system. VOR gain in the dark did not differ significantly, irrespective of the MRI findings. On the other hand, fVOR gain in patients with cerebral lesions was significantly higher than that in patients without cerebral lesions, resulting in significantly lower VSR in the former patients. Impairment of visual suppression of VOR due to brain lesions outside the cerebellum or pons may not be uncommon in the elderly.

Journal

• Equilibrium Research

  Equilibrium Research 64 (2), 94-99, 2005

  Japan Society for Equilibrium Research

Keywords

• fixation suppression
• vestibulo-ocluar reflex
• cerebrum

Details

• CRID: 1390001204949519360
• NII Article ID: 10017269097
• NII Book ID: AN00001485
• DOI: 10.3757/jser.64.94
• ISSN: 1882577X
• ISSN: 03855716
• Web Site: https://search.jamas.or.jp/link/ui/2006024336
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed