Brain wave: using sound to diagnose concussion

From blows to the head on the sports field, to car crashes and playground falls, concussion is a common brain injury notoriously difficult to diagnose — until now, researchers said Thursday. A US-based team unveiled a fast, portable and reliable test measuring differences in brain activity in response to sound. “Our measure… can take the guesswork out of concussion diagnosis,” study co-author Nina Kraus of Northwestern University in the United States, told AFP.

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Brain wave: using sound to diagnose concussion