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In reply to the discussion: One more time, Packers/Seahawks game [View all]GusBob
(8,305 posts)13. I dont know if there is a "concussion test" per se
although the King Davick research sounds interesting ( a test of eye saccades which can be affected by a concussion)
I mean, there is nothing that would show up on a cat scan or MRI or any objective medical test unless there was serious damage. The CTE slides you see of former players brain cells are from autopsy after death, it does not show up on imaging. Mostly it seems a concussion is diagnosed by the symptoms the player would report. I reckon if a player really wanted to play and didn't care about permanent damage, he would just say "I'm fine"
Otherwise the player does not play until he is cleared by a Dr. I think the general rule of thumb is one week of no contact and if there are no symptoms, in the game ya go.
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