Friendship chemistry: new vole study shows oxytocin speeds up—and narrows—who we bond with
A new animal study suggests the hormone oxytocin does more than make us feel warm and trusting: it helps friendships form quickly and helps animals favor familiar companions while avoiding strangers. Researchers at the University of California, Berkeley, found that prairie voles genetically engineered to lack oxytocin receptors took far longer to prefer peers and were less selective in group settings, pointing to a dual role for oxytocin in promoting in-group affiliation and out-group avoidance (Neuroscience News summary of the study). The findings offer a clearer picture of the neurobiology behind friendship and raise cautious questions about how this knowledge might inform understanding of human social disorders and community wellbeing in Thailand and beyond (UC Berkeley news release).