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The vestibulo-ocular reflex and angular displacement perception in darkness in humans: adaptation to a virtual environment.

Authors
  • Ivanenko, Y P
  • Viaud-Delmon, I
  • Siegler, I
  • Israël, I
  • Berthoz, A
Type
Published Article
Journal
Neuroscience Letters
Publisher
Elsevier
Publication Date
Jan 30, 1998
Volume
241
Issue
2-3
Pages
167–170
Identifiers
PMID: 9507947
Source
Medline
Keywords
License
Unknown

Abstract

The vestibulo-ocular reflex (VOR) and angular displacement perception were measured in 25 healthy humans in darkness before and after exposure to incoherent visual-vestibular stimulation (VVS): 45 min of repeated passive 180 degrees whole-body rotations around the vertical axis concurrent with only 90 degrees rotation in a visual virtual square room. Large inter-individual variability was observed for both VOR gain and turning estimates. The individual VOR gains were not correlated with perceived angles of rotation either before or after VVS. After VVS, the angular displacement perception decreased by 24+/-16% while the VOR gain did not change significantly. The results suggest that adaptive plasticity in turning perception and adaptive plasticity in VOR might be independent of one another.

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