Redirected and amplified head movements have the potential to
provide more natural interaction with virtual environments (VEs)
than using controller-based input, which causes large discrepancies
between visual and vestibular self-motion cues and leads to
increased VR sickness. However, such amplified head movements
may also exacerbate VR sickness symptoms over no amplification.
Several general methods have been introduced to reduce VR sickness
for controller-based input inside a VE, including a popular
vignetting method that gradually reduces the field of view.
In this paper, we investigate the use of vignetting to reduce VR
sickness when using amplified head rotations instead of controllerbased
input. We also investigate whether the induced VR sickness
is a result of the user’s head acceleration or velocity by introducing
two different modes of vignetting, one triggered by acceleration and
the other by velocity. Our dependent measures were pre and post
VR sickness questionnaires as well as estimated discomfort levels
that were assessed each minute of the experiment. Our results show
interesting effects between a baseline condition without vignetting,
as well as the two vignetting methods, generally indicating that
the vignetting methods did not succeed in reducing VR sickness for
most of the participants and, instead, lead to a significant increase.
We discuss the results and potential explanations of our findings.
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The effect of water immersion on vection in virtual reality
Research about vection (illusory self-motion) has investigated a wide range of sensory cues and employed various methods and equipment, including use of virtual reality (VR). However, there is currently no research in the field of vection on the impact of floating in water while experiencing VR. Aquatic immersion presents a new and interesting method to potentially enhance vection by reducing conflicting sensory information that is usually experienced when standing or sitting on a stable surface. This study compares vection, visually induced motion sickness, and presence among participants experiencing VR while standing on the ground or floating in water. Results show that vection was significantly enhanced for the participants in the Water condition, whose judgments of self-displacement were larger than those of participants in the Ground condition. No differences in visually induced motion sickness or presence were found between conditions. We discuss the implication of this new type of VR experience for the fields of VR and vection while also discussing future research questions that emerge from our findings.
more » « less- NSF-PAR ID:
- 10209776
- Publisher / Repository:
- Nature Publishing Group
- Date Published:
- Journal Name:
- Scientific Reports
- Volume:
- 11
- Issue:
- 1
- ISSN:
- 2045-2322
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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