From: LHETTINGER@FALCON.AAMRL.WPAFB.AF.MIL
Subject: Re: Motion Sickness and VR
Date: Mon, 21 Jan 91 08:47 EDT




Maurice Sharp recently wrote:

>    This is not news. Meridith Bricken at the First Conference on
>Cyberspace made the same comments. Just because you are in a virtual
>world, does not mean you can get rid of cues we use. That means you
>need a floor, an up, a down, etc.

Unfortunately, the solution to the problem of motion sickness in flight 
simulators and other implementations of virtual reality is not this simple.  
These devices provide multiple sources of optical information for orientation 
- this is not a problem.  What *is* a problem is the apparent decoupling of 
normally correlated visual and vestibular sources of information for self 
motion.  Our research efforts need to continue to try to identify the types of 
visual stimulation that create motion sickness in a stationary observer and 
which create the hazardous visually-induced motion aftereffects.