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A comparative study on inter-brain synchrony in real and virtual environments using hyperscanning
Computers & Graphics ( IF 2.5 ) Pub Date : 2021-02-01 , DOI: 10.1016/j.cag.2020.10.003 Ihshan Gumilar , Ekansh Sareen , Reed Bell , Augustus Stone , Ashkan Hayati , Jingwen Mao , Amit Barde , Anubha Gupta , Arindam Dey , Gun Lee , Mark Billinghurst
Computers & Graphics ( IF 2.5 ) Pub Date : 2021-02-01 , DOI: 10.1016/j.cag.2020.10.003 Ihshan Gumilar , Ekansh Sareen , Reed Bell , Augustus Stone , Ashkan Hayati , Jingwen Mao , Amit Barde , Anubha Gupta , Arindam Dey , Gun Lee , Mark Billinghurst
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Abstract Researchers have employed hyperscanning, a technique used to simultaneously record neural activity from multiple participants, in real-world collaborations. However, to the best of our knowledge, there is no study that has used hyperscanning in Virtual Reality (VR). The aims of this study were; firstly, to replicate results of inter-brain synchrony reported in existing literature for a real world task and secondly, to explore whether the inter-brain synchrony could be elicited in a Virtual Environment (VE). This paper reports on three pilot-studies in two different settings (real-world and VR). Paired participants performed two sessions of a finger-pointing exercise separated by a finger-tracking exercise during which their neural activity was simultaneously recorded by electroencephalography (EEG) hardware. By using Phase Locking Value (PLV) analysis, VR was found to induce similar inter-brain synchrony as seen in the real-world. Further, it was observed that the finger-pointing exercise shared the same neurally activated area in both the real-world and VR. Based on these results, we infer that VR can be used to enhance inter-brain synchrony in collaborative tasks carried out in a VE. In particular, we have been able to demonstrate that changing visual perspective in VR is capable of eliciting inter-brain synchrony. This demonstrates that VR could be an exciting platform to explore the phenomena of inter-brain synchrony further and provide a deeper understanding of the neuroscience of human communication.
更新日期：2021-02-01
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