Evaluating self- vs. other-owned objects: The modulatory role of oxytocin

► Brain potentials were recorded while participants judged the ownership of objects. ► Object names were preceded by positive or negative terms. ► Other-owned objects evoked more negative-going responses when positively described. ► The opposite pattern was found with intranasal oxytocin administration. ► Oxytocin had no effect on self-owned objects.