Pete Ryan, a member of the MHSAA Representative Council, was the test subject for the King-Devick Test, which asks athletes to read single-digit numbers on a tablet to detect changes in eye movement, attention, language and concentration after a hit to the head. “It’s not hard,” said Ryan, who played football for Iron Mountain in 1987. “The idea is that ocular relations can determine if there is a concussion. The average baseline time is between 28 and 40 seconds.”