CNN Sanjay Gupta MD November 17, 2013 12:52:00
This does not trigger one of those. >> that impact, 130 gs, is like running full speed into a brick wall. one device did trigger. the other did not. >> that's ready. >> at an even higher drop, one product flashes green. the other red. so this really kind of underscores what we need to do testing and we need to understand what we're measuring, when at the trigger, when they don't so parents can have a better understanding what information they're getting back. >> a frequent disclaimer on the products, they do not diagnose concussion. but concussion experts say the devices themselves still need ...