Two player EEG-based neurofeedback ball game for attention enhancement

Brain computer interface (BCI) based neurofeedback games have the potential to enhance the cognitive skills of healthy people as well as subjects with cognitive and memory impairment. Electroencephalogram (EEG) has been used as a common brain imaging modality as it is easy and cheap among all the other non-invasive techniques. This paper proposes an EEG driven gaming interface where the subject's attention (concentration) is used to control the game successfully. The proposed game scenario requires the player to push a ball from one end of game's graphical user interface to the other end using his attention level. Attention level of the player is quantified using the ratio of theta to beta band power in EEG signals. The experimental analysis shows that the proposed game is capable of enhancing player's attention skill as well as enhances the ability of the player to sustain attention for longer duration. This "ball game" can be effectively used in neurofeedback training for attention deficit children.