NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Motion sickness and proprioceptive aftereffects following virtual environment exposureTo study the potential aftereffects of virtual environments (VE), tests of visually guided behavior and felt limb position (pointing with eyes open and closed) along with self-reports of motion sickness-like discomfort were administered before and after 30 min exposure of 34 subjects. When post- discomfort was compared to a pre-baseline, the participants reported more sickness afterward (p < 0.03). The change in felt limb position resulted in subjects pointing higher (p < 0.038) and slightly to the left, although the latter difference was not statistically significant (p = 0.08). When findings from a second study using a different VE system were compared, they essentially replicated the results of the first study with higher sickness afterward (p < 0.001) and post- pointing errors were also up (p < 0.001) and to the left (p < 0.001). While alternative explanations (e.g. learning, fatigue, boredom, habituation, etc.) of these outcomes cannot be ruled out, the consistency of the post- effects on felt limb position changes in the two VE implies that these recalibrations may linger once interaction with the VE has concluded, rendering users potentially physiologically maladapted for the real world when they return. This suggests there may be safety concerns following VE exposures until pre-exposure functioning has been regained. The results of this study emphasize the need for developing and using objective measures of post-VE exposure aftereffects in order to systematically determine under what conditions these effects may occur.
Document ID
20040142022
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Stanney, K. M.
(University of Central Florida, Department of Industrial Engineering and Management Systems Orlando 32816, United States)
Kennedy, R. S.
Drexler, J. M.
Harm, D. L.
Date Acquired
August 22, 2013
Publication Date
February 1, 1999
Publication Information
Publication: Applied ergonomics
Volume: 30
Issue: 1
ISSN: 0003-6870
Subject Category
Man/System Technology And Life Support
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Neuroscience
Clinical Trial
NASA Center JSC

Available Downloads

There are no available downloads for this record.
No Preview Available