Griffin, you can find quite a lot of information regarding TBI and Omega 3s in medical journals and some of the TBI/PCS org sites. I am sure this has been discussed on TBI forum also. I should check again.
http://online.liebertpub.com/doi/ful.../neu.2013.3234
Nutritional Treatment for Traumatic Brain Injury
Journal of Neurotrauma. June 1, 2014
<scroll down to Omega 3 and then Recommendations for Omega-3>