Waterloo Labs Makes Eye-Controlled MarioBy Purewal, Sarah Jacobsson; PC World,
Publication Date: August 21, 2010
Article describes the development of a technology that enables players to control a video game using their eyes. Utilizing an eye position reading technique known as electro-oculography (EOG) and a custom daughter card, Waterloo Labs, a project of National Instruments, has devised a method to control the Nintendo Entertainment System to play Super Mario Bros 2 with eye movement. The method takes advantage of the polarization of the eye, resulting from the back of the eye holding a more negative charge than the front because of the high concentration of neurons in the retina. The polarization causes the eye to create an electrical field that will move with the eye. This movement was captured as a signal in an experiment by affixing electrodes to the area around the eyes of a participant. The electrodes transmitted the signal to a custom daughter card which filtered and amplified the incoming signal. The daughter card was connected to a computer for analysis of the signal. Following analysis, the signal was sent back through the daughter card and transmitted to the Nintendo.
Published by: PC World Communications (Website:http://pcworld.com)
Link to text: http://www.pcworld.com/article/203842/