The claim that an interaction between low MAO-A activity and maltreatment would cause anti-social behavior has been criticized since the predisposition towards anti-social behavior could equally well have been caused by other genes inherited from abusive parents.
A afirmación de que a interacción da baixa actividade de MAO-A e o maltrato causa un comportamento antisocial foi criticada, xa que a predisposición cara ao comportamento antisocial podería perfectamente ser causada por outros xenes herdados de parentes maltratadores.