Behavioral findings. A. Average probability of happy decisions as a function of bodyweight and emotional intensity of faces (Experiment 1). B. Average probability of sad decisions as a function of bodyweight and emotional intensity of faces (Experiment 2). C. Response times of happy decisions (Experiment 1). D. Response times of sad decisions (Experiment 2).

<p>Error bars denote the standard error of the mean. * <i>p</i> < .05, ** <i>p</i> < .01.