FAAH and psychotic disorder: The results revealed a lower FAAH density in the amygdala of individuals with ASPD, and this decrease was inversely correlated with the incidence of aggressive behaviour in the cerebellum and striatum of those with ASPD.473 Moreover, Watts et al. performed PET/CT imaging via [11C]CURB to detect FAAH activity in young adults with psychotic disorders, and the results revealed that increased FAAH activity was associated with decreased hippocampus volume and increased hippocampal glutamate levels.474