For example, the short-allele (MAOA-S) in men or the long-allele (MAOA-L) in womenin the presence of negative environmental factors has been associated with antisocial outcomes (36–39), conduct disorder (40), panic disorder (41), aggression (42–44), anxiety (45), mood disorders (46–49), impulsivity (50); schizophrenia (51) or attention-deficit/hyperactivity syndrome (39). Here, MAOA is linked to mood disorder.