The serotonin 2A receptor is one of the most abundant serotonin receptors in the human CNS and is a target for drugs designed to treat psychiatric disorders (McCorvy and Roth, 2015). Significantly, levels of serotonin 2A receptors have been shown to be altered in the CNS of subjects with schizophrenia (Dean, 2003), major depressive disorders (Arora and Meltzer, 1989; Dean et al., 2014) and suic...