While most concussion research focuses on college and professional players or young children, a team of neuroscientists at the University of Georgia is tackling an often overlooked cohort of athletes.
The average Joes are middle-aged men who played football, but not in any kind of national spotlight. They suffered concussions during their glory days on the high school gridiron.
Each participant underwent an fMRI scan, which measures brain activity by detecting changes in blood flow within the brain. An image of the brain appears on the computer screen, and as the volunteer performs various mental tasks, different regions light up to different degrees, representing activity in those areas.