Core Concepts
The nature of the task in a virtual reality environment can mitigate the impact of scene complexity factors, such as optic flow and familiarity, on workload, presence, and cybersickness.
Abstract
This study examined the relationships among scene complexity, workload, presence, and cybersickness in a task-based virtual reality (VR) game called Pendulum Chair. The researchers created two versions of the game: a simple scene with lower optic flow and lower familiarity, and a complex scene with higher optic flow and greater familiarity.
The key findings are:
Despite the visible differences in scene complexity, the workload and presence experienced by participants were statistically equivalent between the simple and complex scenes. This suggests that the presence of a task, independent of scene content, can neutralize the impact of scene complexity factors.
The cybersickness experienced by participants was also statistically equivalent between the simple and complex scenes, hinting that the equivalency in workload and presence might overshadow the impact of varying optic flow.
Surprisingly, the study found a moderate, negative correlation between workload and cybersickness, contrary to some previous findings. This suggests that increased workload up to a certain threshold may actually reduce cybersickness, potentially by distracting users from cybersickness cues.
The results indicate that the nature of the task in a VR environment can be a crucial factor in shaping the user experience, potentially outweighing the influence of traditional scene complexity variables. Future research should prioritize task considerations when examining cybersickness and other VR experience factors.
Stats
Participants in the simple scene had a mean workload of 10.89 ± 3.20.
Participants in the complex scene had a mean workload of 10.55 ± 3.40.
Participants in the simple scene had a mean presence score of 98.54 ± 13.48.
Participants in the complex scene had a mean presence score of 101.09 ± 19.17.
Participants in the simple scene had a mean SSQ (cybersickness) score of 64.77 ± 40.53.
Participants in the complex scene had a mean SSQ score of 52.02 ± 32.38.
Quotes
"The nature of the task can mitigate the impact of scene complexity factors such as optic flow and familiarity."
"The influence of presence and workload variables might outweigh the impact of optic flow in influencing cybersickness."
"An increase in workload correlates with a decrease in cybersickness, contrary to previous findings."