Turning off-the-shelf games into biofeedback games.

ABSTRACTBiofeedback games help users maintain specific mental or physical states and are useful to help people with cognitive impairments learn to self-regulate their brain function. However, biofeedback games are expensive and difficult to create and are not sufficiently appealing to hold a user's interest over the long term. We present two systems that turn off-the-shelf games into biofeedback games. Our desktop approach uses visual feedback via texture-based graphical overlays that vary in their obfuscation of an underlying game based on the user's physiological state. Our mobile approach presents multi-modal feedback (audio or vibration) of a user's physiological state on an iPhone.