'Virtual nose' may reduce simulator sickness in video games
Purdue University News, Mar 2015
Yes, you can relieve motion sickness in virtual reality by coding a nose overlay into the frame as a visual guide.
I sure didn't realize it until I read this, but you're looking at your nose all day; you're looking at it right now. Well, maybe you're not looking at it, but it's there. Maybe now you're looking at it, since we're talking about it. Anyway, it's there all day. If your eyes are open, your nose is in your field of vision. And when it's not, you're disoriented.
I'm pretty sure this is not what they mean when they say "right under your nose" or "right in front of your face," but it sure works in this case. Throw that onto the heaping pile of other things we don't notice about our nose or what it does for us. And add that to the other pile of things that we could improve if we looked to the nose and olfaction in general as a source of biomimetic supremacy.
via Purdue University: Whittinghill, D.M. et al. Nasum virtualis: A simple technique for reducing simulator sickness. In Proceedings of the Games Developers Conference (GDC), San Francisco, CA, USA, 2–6 March 2015; p. 74.
via University of Wuerzburg: A Virtual Nose as a Rest-Frame - The Impact on Simulator Sickness and Game Experience. Carolin Wienrich et al, 10th International Conference on Virtual Worlds and Games for Serious Applications, Sep 2018. DOI:10.1109/VS-Games.2018.8493408
via the BioComputing Lab at Korea University of Technology and Education: A Study on Visually Induced VR Reduction Method for Virtual Reality Sickness. Ju-hye Won and Yoon Sang Kim. Appl. Sci. 2021, 11(14), 6339; https://doi.org/10.3390/app11146339.