Brain Circuit Ties Oxytocin to Social Behavior and Fear Extinction

Researchers in Japan identified oxytocin receptor–bearing neurons in the paraventricular thalamus that affect both social approach and fear extinction in male mice; suppressing these cells reduced social interest, while activating them altered early fear-extinction learning but didn’t sustain the effect. Human data were exploratory and limited. The work suggests oxytocin’s effects depend on brain region and context, offering clues for autism and anxiety, but further research is needed.