Behavioral results. A, Percentage of healthy choices for each recipient. B, Average observed RT by recipient. C–E, Observed RT for trials separated on the basis of whether, given the same food option, the decision maker chose the same for (C) Own versus Similar, (D) Own versus Dissimilar, and (E) Dissimilar versus Similar. Thus, Own-Similar:Same Response reflects RT for trials in which the choice was for Own self, and the response was the same as for the Similar other, whereas Own-Similar:Different Response reflects RTs on those trials where the response was different from the comparable choice for the Similar other; and likewise for the other comparisons. *p < 0.05, **p < 0.01.