Inaddition to these findings, people with psychosis present with an increaseddensity in striatal dopamine D2 receptors, and alterations in genes involvedin dopamine function (for a recent review, see McCutcheon and others 2019).Given this, and the fact that the primary treatment for psychosis isdopamine blockade, there has been a growing interest, beginning perhaps withthe work of RobertMiller (1976) in embedding the understanding of the basicneuroscience of dopamine into models of psychosis. Here, DRD2 is linked to psychotic disorder.