The hormone oxytocin can turn naturally solitary rodents into monogamous lifelong partners
Oxytocin functions as a biological 'glue' that can transform naturally promiscuous rodents into monogamous partners, highlighting the hormone's role in modulating the brain's fear and trust centers.
The hormone oxytocin is capable of fundamentally altering the social structure of a species by modulating the amygdala to reduce fear and enhance trust. In landmark studies of prairie voles, researchers found that injecting this neurochemical induced lifelong pair-bonding, a stark contrast to the solitary and polygamous behavior of their close relatives, the meadow voles. In humans, positive physical touch can trigger a 20% to 50% surge in oxytocin levels, which correlates strongly with reported relationship satisfaction.
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