Daniel Perl, PhD, Director of the Brain Tissue Repository at the Uniformed Services University of the Health Sciences/Department of Defense in Bethesda, Md., presents his research aimed at understanding the long-term consequences of traumatic brain injury (TBI) among military personnel. Topics include:

• The different types of TBI and how they differ in their physics and nature of the damaged produced in the brain
• How little is known about the long-term effects of TBI on the brain and the outcomes among military service members
• How the DoD/USU Brain Tissue Repository, with its 258 donated brain specimens, may hold the key to understanding these effects