Dissociation of visual and haptic vertical in two patients with vestibular nuclear lesions

被引：55
作者：
Bronstein, AM
Pérennou, DA
Guerraz, M
Playford, D
Rudge, P
机构：
[1] Univ London Imperial Coll Sci Technol & Med, Acad Dept Neurootol, London, England
[2] Natl Hosp Neurol & Neurosurg, London WC1N 3BG, England
来源：
NEUROLOGY | 2003年 / 61卷 / 09期
基金：
英国医学研究理事会;
关键词：
D O I：
10.1212/01.WNL.0000086815.22816.DC
中图分类号：
R74 [神经病学与精神病学];
学科分类号：
摘要：
The somatosensory ( haptic) vertical ( HV) and visual vertical ( VV) were assessed in two patients with vestibular nuclear lesions. Patient 1 had paroxysmal nystagmus, and was tested " on" and " off." The HV was normal " on" and " off " but the VV was severely tilted during vestibular paroxysms. Patient 2, with a brainstem stroke, was tested at months 1 and 6. The VV was severely tilted on both occasions ( > 12 degrees) but the HV was marginally tilted ( 4 degrees) in the acute stage only. These VV- HV dissociations suggest that vestibular nuclear lesions influence gravity perception mostly via ocular torsional effects rather than by disrupting a single, internal representation of verticality.
引用
收藏
页码：1260 / 1262
页数：4
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