A new study shows a way to identify traumatic brain injuries, which have been previously undetectable lending light on why some people exhibit signs of brain injury even while CT and MRI scans are normal. This may have implications for military personnel who survive blasts to be deemed healthy even while they feel the effects of brain trauma. Dr. David L. Brody is the senior author the study says this is a “small, but important step forward… This method is a research method, not available yet for clinical practice.”