Higuera-Matas and co-workers [73] highlighted some genes as being associated with (i) changes in the striatum of cocaine-sensitized rats (parvalbumin/Pvalb) [208]; (ii) drug addiction (sphingomyelin synthase, Sgms2) [177]; and (iii) methamphetamine (Meth)–induced psychosis (NAD(P)H dehydrogenase, Nqo2) [79, 146]. This evidence concerns the gene PVALB and psychotic disorder.