Optimism and oxytocin

Based on three belief-updating experiments involving 320 people around 23 years of age, researchers found that intranasally administered oxytocin, a neuropeptide linked to social adaptation, may help people incorporate desirable feedback into their beliefs and may impair belief updates from undesirable feedback; in the study, people with the highest levels of depression and anxiety experienced the greatest oxytocin-induced impairment of learning from undesirable information, findings that may provide insights into the formation of optimistic beliefs about the future. - Read at PNAS.org

Article #16-04285: “Distinct oxytocin effects on belief updating in response to desirable and undesirable feedback,” by Yina Ma et al.