Vasopressin is a hormone produced by our bodies that helps regulate water balance and blood pressure. It makes our bodies retain water and reduces the amount of urine we produce. Full definition
Previous research with captive male prairie voles, which form lifelong bonds with a single partner, indicated that the animals had high levels of vasopressin receptors in the ventral pallidum, a brain region closely associated with the reward system. (scientificamerican.com)
Conveniently, Larry Young's laboratory at Yerkes National Primate Research Center has been investigating the functions of vasopressin receptors in voles. (emoryhealthsciblog.com)
Likewise in marmosets, receptors for vasopressin in experienced dads were far more numerous compared to non-dads. (businessinsider.com)