OXT and Anxiety: The neuropeptide oxytocin (OXT) plays complex roles in emotional and social behaviors, including attachment, social recognition, trust, generosity, anxiety management, and responses to social stress (Heinrichs et al., 2003; Kosfeld et al., 2005; Uvnäs-Moberg et al., 2005; Zak et al., 2007; De Dreu et al., 2010; MacDonald and Feifel, 2014).