Accumulating evidence from studies in animals and in human populations with and without psychiatric disorders shows that oxytocin administration may modulate autonomic stress reactivity (Kubzansky, Mendes, Appleton, Block, & Adler, 2012), attenuate anxiety and amygdala reactivity (Kirsch et al., 2005; Koch et al., 2016b), as well as beneficially impact socio-emotional processes and pro-social behaviour (Preckel, Scheele, Kendrick, Maier, & Hurlemann, 2014; van IJzendoorn & Bakermans-Kranenburg, 2012). The gene discussed is OXT; the disease is psychiatric disorder.