As reported by The Register :
A Purdue University undergraduate has picked a way to stop virtual reality inducing motion sickness: program in a virtual nose.
Fixed-reference objects help to stop the sickness, Whittinghill says, but not every simulation lends itself to the inclusion of something like the window frames in a cockpit to give the brain something to latch onto.
While discussing this problem, undergraduate Bradley Ziegler piped up with the idea of programming in a virtual nose. The idea is that we're all used to our hooters haunting our field of vision, so much so that we take it for granted that it's always possible to see a slice of schnoz.
Subjects given the virtual nose staved off simulation sickness longer than their noseless counterparts in a variety of simulations, including a sickness-inducing roller coaster ride. The original source provides more information, including a finding that test subjects didn't notice the virtual nose during testing, even displaying skepticism over its presence when told about it later during post-testing debriefings.
(Score: 3, Informative) by Immerman on Friday March 27 2015, @01:15PM
Well, current VR has a very limited field of view* directly in front of the face. Your nose, being rather front and center, is within that field of view. Try looking past your brows though, and there isn't any screen to project an image on. For now.
*Oculus and peers are much better than earlier "postage stamp" VR helmets, but we're still talking about a diagonal field of view of ~110*, rather than the easily 200+* FOV offered by our eyes when fixed forward, much less the huge range available if you move your eyes.