AMMO KIT (IMAGE) Southwest Research Institute Caption SwRI has developed an Advanced Military Measure of Olfaction smell test as a screening tool to assess potential traumatic brain injury. The inability to identify the scents correctly correlates highly with positive results for TBI on an MRI exam. Credit Southwest Research Institute Usage Restrictions Images/Videos may be used by the public for educational and informational purposes only. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.