Two Brains, One Game: Design and Evaluation of a Multi-User BCI Video Game Based on Motor Imagery

Laurent Bonnet 1 Fabien Lotte 2, 3 Anatole Lécuyer 1
1 Hybrid - 3D interaction with virtual environments using body and mind
Inria Rennes – Bretagne Atlantique , IRISA-D6 - MEDIA ET INTERACTIONS
2 LaBRI - Laboratoire Bordelais de Recherche en Informatique
3 Potioc - Popular interaction with 3d content
LaBRI - Laboratoire Bordelais de Recherche en Informatique, Inria Bordeaux - Sud-Ouest
Abstract : How can we connect two brains to a video game by means of a BCI, and what will happen when we do so? How will the two users behave, and how will they perceive this novel common experience? In this paper we are concerned with the design and evaluation of multi-user BCI applications. We created a multi-user video-game called "BrainArena" in which two users can play a simple football game by means of two BCIs. They can score goals on the left or right side of the screen by simply imagining left or right hand movements. To add another interesting element, the gamers can play in a collaborative manner (their two mental activities are combined to score in the same goal), or in a competitive manner (the gamers must push the ball in opposite directions). Two experiments were conducted to evaluate the performance and subjective experience of users in the different conditions. In the first experiment we compared single-user situation with one multi-user situation: the collaborative task. Experiment 1 showed that multi-user conditions are significantly preferred in terms of fun and motivation compared to the single-user condition. The performance of some users was even significantly improved in the multi-user condition. A subset of well-performing subjects was involved in the second experiment, where we added the competitive task. Experiment 2 suggested that competitive and collaborative conditions may lead to similar performances and motivations. However the corresponding gaming experiences can be perceived differently among the participants. Taken together our results suggest that multi-user BCI applications can be operational, effective, and more engaging for participants.
Keywords : Brain-Computer Interfaces BCI
Type de document :
Article dans une revue
IEEE Transactions on Computational Intelligence and AI in games, IEEE Computational Intelligence Society, 2013, 5 (2), pp.185-198
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Laurent Bonnet, Fabien Lotte, Anatole Lécuyer. Two Brains, One Game: Design and Evaluation of a Multi-User BCI Video Game Based on Motor Imagery. IEEE Transactions on Computational Intelligence and AI in games, IEEE Computational Intelligence Society, 2013, 5 (2), pp.185-198. 〈hal-00784886〉

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