Research on sports concussions

Toronto, ON - MAY 26, 2014 - Former NHL player Bryan Muir gestures inside an MRI scanner. A dual 45 degree mirroring device will allow him to see a computer image projected above his head while undergoing an MRI scan of his skull. Other sensors will measure brain activity while Bryan will try to solve problems inside the MRI for a study on the effects of concussions being held at Baycrest. For Kerry Gillespie story on concussions May 26, 2014. (Chris So/Toronto Star via Getty Images)