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Brain Imaging Investigation of the Neural Correlates of Observing Virtual Social Interactions
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[Effects of virtual reality visual experience on brain functional network].

Tianheng Zhang1, Lei Wang1, Miaomiao Guo1

  • 1State Key Laboratory of Reliability and Intelligence of Electrical Equipment, School of Electrical Engineering, Hebei University of Technology, Tianjin 300130, P.R.China;Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province, School of Electrical Engineering, Hebei University of Technology, Tianjin 300130, P.R.China.

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi = Journal of Biomedical Engineering = Shengwu Yixue Gongchengxue Zazhi
|April 25, 2020
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Virtual reality (VR) use causes greater brain fatigue than traditional displays. VR viewing significantly alters brain network characteristics, indicating a need for further research into VR-induced brain fatigue.

Keywords:
brain fatiguebrain networkelectroencephalogramvirtual reality

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Area of Science:

  • Neuroscience
  • Human-Computer Interaction
  • Virtual Reality Studies

Background:

  • Prolonged virtual reality (VR) use is linked to brain fatigue.
  • Understanding the neurological impact of VR is crucial due to its increasing popularity.

Purpose of the Study:

  • To investigate and compare brain fatigue levels between VR and traditional display usage.
  • To analyze changes in electroencephalogram (EEG) based brain network characteristics induced by VR.

Main Methods:

  • Acquired EEG signals from 16 healthy subjects during VR and traditional video viewing.
  • Assessed fatigue using pre- and post-experiment questionnaires.
  • Constructed and analyzed brain networks using mutual correlation methods, comparing parameters like degree, path length, and efficiency.

Main Results:

  • Subjects experienced greater brain fatigue with VR video viewing compared to traditional displays.
  • VR viewing led to significant decreases in average degree, clustering coefficient, global efficiency, and small-world attributes.
  • Average path length significantly increased after VR exposure.
  • Brain network alterations were more pronounced after VR viewing than traditional video (P < 0.05).

Conclusions:

  • VR visual experiences induce more significant brain fatigue and neurological changes than traditional screen-based experiences.
  • Findings provide a basis for evaluating and mitigating VR-induced brain fatigue.