Behavioral and Brain Sciences

open peer commentary

trust: a temporary human attachment facilitated by oxytocin

paul j. zak a1
a1 center for neuroeconomics studies, claremont graduate university, claremont, ca 91711-6165; department of neurology, loma linda university medical center, loma linda, ca 92354; and gruter institute for law and behavioral research, portola valley, ca 94028


trust is a temporary attachment between humans that pervades our daily lives. recent research has shown that the affiliative hormone oxytocin rises with a social signal of interpersonal trust and is associated with trustworthy behavior (the reciprocation of trust). this commentary reports these results and relates them to the target article's findings for variations in affiliative-related behaviors.