Progressive Training for Motor Imagery Brain-Computer Interfaces Using Gamification and Virtual Reality Embodiment

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Authors

ŠKOLA Filip TINKOVÁ Simona LIAROKAPIS Fotis

Year of publication 2019
Type Article in Periodical
Magazine / Source Frontiers in Human Neuroscience
MU Faculty or unit

Faculty of Informatics

Citation
Web http://dx.doi.org/10.3389/fnhum.2019.00329
Doi http://dx.doi.org/10.3389/fnhum.2019.00329
Keywords brain-computer interface; motor imagery; embodiment; body ownership transfer; gamification
Description This paper presents a gamified motor imagery brain-computer interface (MI-BCI) training in immersive virtual reality. The aim of the proposed training method is to increase engagement, attention, and motivation in co-adaptive event-driven MI-BCI training. This was achieved using gamification, progressive increase of the training pace, and virtual reality design reinforcing body ownership transfer (embodiment) into the avatar. From the 20 healthy participants performing 6 runs of 2-class MI-BCI training (left/right hand), 19 were trained for a basic level of MI-BCI operation, with average peak accuracy in the session = 75.84%. This confirms the proposed training method succeeded in improvement of the MI-BCI skills; moreover, participants were leaving the session in high positive affect. Although the performance was not directly correlated to the degree of embodiment, subjective magnitude of the body ownership transfer illusion correlated with the ability to modulate the sensorimotor rhythm.
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