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Effects of Natural Independent Visual Background for Reducing Simulator Sickness  

김도회 (Human Interface Technology Laboratory, University of Washington)
임정위 (Human Interface Technology Laboratory, University of Washington)
Publication Information
Journal of Korean Society of Industrial and Systems Engineering / v.25, no.3, 2002 , pp. 28-33 More about this Journal
Abstract
Several studies indicated that an independent visual background (IVB) reduced simulator sickness (SS) and balance disturbance associated with exposure to virtual environments (VEs) and motion simulators. A recent study showed that an IVB comprised of an earth-fixed grid was less effective in a complex driving simulator than in a simple VE. Subjects' post-experiment reports indicated that the VE motion "induced" motion of the earth-fixed grid m. This led to the suggestion that an IVB comprised of clouds would be less subject to induced motion and therefore would alleviate nausea more effectively than a grid IVB. Clouds are "natural" and are usually perceived as relatively stable, whereas a grid has no inherent stability. 12 subjects were exposed to complex motion through a simulated environment in a driving simulator under 3 IVB conditions: grid, less clouds, many clouds. They reported less nausea when the many-cloud IVB was used relative to the grid IVB condition. grid IVB condition.
Keywords
independent visual background (IVB); simulator sickness; balance disturbance;
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