HTR2A and major depressive disorder: The 5-HT2 family of receptors, which include the 5-HT2A,2B and 5-HT2C receptor subtypes, have been implicated in perception and mood, and, therefore, represent promising targets for pharmacologically ameliorating the perceptual and emotive disturbances associated with TBI and other psychiatric disorders such as MDD and PTSD [72,73,74,75].