Inter-brain Synchrony and Eye Gaze Direction During Collaboration in VR

ABSTRACT Brain activity sometimes synchronises when people collaborate together on real world tasks. Understanding this process could to lead to improvements in face to face and remote collaboration. In this paper we report on an experiment exploring the relationship between eye gaze and inter-brain synchrony in Virtual Reality (VR). The experiment recruited pairs who were asked to perform finger-tracking exercises in VR with three different gaze conditions: averted, direct, and natural, while their brain activity was recorded. We found that gaze direction has a significant effect on inter-brain synchrony during collaboration for this task in VR. This shows that representing natural gaze could influence inter-brain synchrony in VR, which may have implications for avatar design for social VR. We discuss implications of our research and possible directions for future work.