Meyendtris: a hands-free, multimodal tetris clone using eye tracking and passive BCI for intuitive neuroadaptive gaming

This paper introduces a completely hands-free version of Tetris that uses eye tracking and passive brain-computer interfacing (a real-time measurement and interpretation of brain activity) to replace existing game elements, as well as introduce novel ones. In Meyendtris, dwell time-based eye tracking replaces the game's direct control elements, i.e. the movement of the tetromino. In addition to that, two mental states of the player influence the game in real time by means of passive brain-computer interfacing. First, a measure of the player's relaxation is used to modulate the speed of the game (and the corresponding music). Second, when upon landing of a tetromino a state of error perception is detected in the player's brain, this last landed tetromino is destroyed. Together, this results in a multimodal, hands-free version of the classic Tetris game that is no longer hindered by manual input bottlenecks, while engaging novel mental abilities of the player.