Fig. 1.

Example stimuli. All experiments featured 10 event categories. In Experiments 1a and 1b, these were depicted by several different pairs of actors, and Agent gender (male or female) and Agent side (left or right) were fully crossed within event category. In Experiments 2 and 3, events were depicted by a pair of identical twin actors. Agent shirt color (blue or red) and Agent side (left or right) were fully crossed within event category. In Experiment 3, the images from Experiment 2 were manipulated such that the two actors were always facing opposite one another; thus, their interactive relationship was almost entirely eliminated. See the Appendix for more example images.