Canada's largest children's rehabilitation hospital have developed a new technique that uses infrared light brain imaging to decode preference with the goal of ultimately opening the world of choice to children who can't speak or move. Bloorview scientists demonstrate the ability to decode a person's preference for one of two drinks with 80 per cent accuracy by measuring the intensity of near infrared light absorbed in brain tissue. "This is the first system that decodes preference naturally from spontaneous thoughts," After teaching the computer to recognize the unique pattern of brain activity associated with preference for each subject, the researchers…