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Virtual reality (VR) cybersickness (CS) can be reduced by simplifying virtual environments. This study used electroencephalography (EEG) to monitor brain activity, finding simplified scenes decreased neural activation linked to CS.

Keywords:
cybersicknesselectroencephalographyoptical flowvirtual reality

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Area of Science:

  • Neuroscience
  • Virtual Reality Technology
  • Human-Computer Interaction

Background:

  • Virtual reality (VR) offers immersive experiences but is often limited by cybersickness (CS).
  • CS arises from sensory conflict between visual motion and the vestibular system.
  • Existing CS mitigation strategies often involve hardware or visual field limitations.

Purpose of the Study:

  • To explore the feasibility of mitigating cybersickness (CS) using geometric scene simplification.
  • To integrate electroencephalography (EEG) for monitoring neurophysiological responses during VR.
  • To investigate the relationship between neural activity and CS symptoms.

Main Methods:

  • Developed a novel framework combining geometric scene simplification with EEG monitoring.
  • Monitored users' brainwave activity and cognitive states during virtual immersion.
  • Analyzed neural activation patterns in relation to cybersickness manifestation in 15 subjects.

Main Results:

  • Found a significant correlation between CS and neural activation in the parietal and temporal lobes (P=0.001, η2=0.28).
  • Observed preliminary trends of lower neural activation during simplified VR scenes.
  • Noted a decrease in neural activation corresponding to reduced optic flow (OF).

Conclusions:

  • Geometric scene simplification may help attenuate cybersickness symptoms in VR.
  • EEG-based monitoring can identify neural correlates of CS.
  • The proposed framework offers a promising, non-invasive approach to enhance VR user experience.