Bronstein, A. M., Perennou, D. A., Guerraz, M., Playford, E. Diane and Rudge, P. (2003) Dissociation of visual and haptic vertical in two patients with vestibular nuclear lesions. Neurology, 61 (9). pp. 1260-1262. doi:doi: 10.​1212/​01.​WNL.​0000086815.​22816.​DC ISSN 0028-3878.

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Abstract

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.

Item Type:	Journal Article
Divisions:	Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School > Health Sciences > Social Science & Systems in Health (SSSH) Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School
Journal or Publication Title:	Neurology
Publisher:	Lippincott Williams & Wilkins
ISSN:	0028-3878
Official Date:	2003
Dates:	Date Event 2003 Published
Volume:	61
Number:	9
Page Range:	pp. 1260-1262
DOI:	doi: 10.​1212/​01.​WNL.​0000086815.​22816.​DC
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access

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