#SocialSelectivity

A new wave of vole research is reframing oxytocin’s role in social life: the hormone is less a universal “cuddle chemical” and more a fine-tuner of selectivity that helps animals invest in specific relationships while turning away outsiders. In female prairie voles lacking oxytocin receptors, friendships form late, wobble easily, and fail to trump contact with strangers, according to new findings reported by University of California, Berkeley neuroscientists and collaborators and summarized by The Transmitter as a study just out in Current Biology. The work suggests oxytocin receptors are not essential for general sociability or even romantic pair bonds—but are crucial for maintaining loyal, selective friendships that endure distractions in a crowd. Those insights, scientists say, could sharpen how we think about human friendship, loneliness, and the design of social environments in Thailand and beyond.

Revolutionary neuroscience research challenges decades of conventional wisdom about oxytocin, revealing that this celebrated “love hormone” functions less as a universal bonding agent and more as a sophisticated social filter that helps individuals maintain selective relationships while excluding outsiders. University of California Berkeley scientists studying genetically modified prairie voles discovered that females lacking oxytocin receptors form friendships later in life, struggle to maintain loyal bonds, and cannot distinguish between familiar companions and strangers in social settings. These groundbreaking findings suggest oxytocin’s primary role involves supporting selective social loyalty rather than general sociability, insights that could transform approaches to human loneliness, friendship maintenance, and community social design throughout Thailand’s rapidly changing social landscape.