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Examining User Experiences through a Multimodal BCI Puzzle Game

This paper presents a study of users' experiences in low cost multimodal brain-computer interface (BCI) games. A 2D puzzle game (Tetris) was designed featuring two modes (non-BCI and BCI input) which require users to meditate in order to change the game difficulty. Thirty participants were asked to report on the two modes separately. Results indicate that a one-sensor BCI device in games positively contributes to enjoy ability but raises mental demand. There was no reported drop in performance in a hybrid system where direct control is not handled by a BCI input. It was found that meditation could not be self-regulated making short-term direct control a bad design decision in future BCI gaming scenarios for one-sensor headsets.