**5. Conclusion**

In this systematic review, we have found suggestive, preliminary evidence supporting the hypothesis that the rs53576 polymorphism of the OXTR gene significantly influences ERP components elicited during socioemotional tasks. Prominently, larger N1, P2, EPN, P3, and LPP components in GG homozygotes seem to be associated with an increase in the sensitivity to salient social cues in social and emotional situations. Moreover, genetic variations in the OXTR do not affect the neural activity during the earlier moments of perceiving faces.
