OXT and psychiatric disorder: Oxytocin, synthesized in the magnocellular neurons situated in the supraoptic and paraventricular nuclei of the hypothalamus and processed to the pituitary, has been shown to increase social interaction and improve cognitive performance in mental disorders characterized by social impairments (MacDonald et al., 2013; Teng et al., 2013; Havranek et al., 2015).