How Does Diffuse Axonal Injury Affect Your Personality?

Perez's posture tweaks have had a huge impact on his self, and the way other people perceive him. In college he was in a car accident that left him with diffuse axonal injury - which is common after high speed crashes. It affects your feelings, your thoughts, your personality, even like your startled response. Some people might recover really quickly, and some people might never recover.