Dissociation between the perception of body verticality and the visual vertical in acute peripheral vestibular disorder in humans

D Anastasopoulos, Thomas Haslwanter, A Bronstein, M Fetter, J Dichgans

Research output: Contribution to journalArticle

77 Citations (Scopus)

Abstract

Estimates of the subjective visual and postural vertical were obtained from five patients with acute peripheral vestibular lesions and 20 normal subjects. The visual vertical was assessed by asking the subjects to align a target line to earth vertical by means of remote control. Postural vertical judgments were obtained by exposing them to rotational displacements in the roll plane while sitting on a motor-driven chair and requiring them to align their body to vertical using a joystick control. While the patients showed strong deviations of the visual vertical towards the lesion side, their postural vertical judgments remained veridical. We conclude that the above perceptions are not processed identically and that the participating sensory systems are differently weighted during these tasks.

Original languageEnglish
Pages (from-to)151-153
Number of pages3
JournalNeuroscience Letters
Volume233
Issue number2-3
DOIs
Publication statusPublished - Jan 1997

Keywords

  • Peripheral vestibular lesions
  • Postural vertical
  • Spatial orientation
  • Vestibular system
  • Visual vertical

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