Fig. 2. Facial poses for inductive cluster 68, identified with unsupervised clustering of Sample 1 participants’ scenario ratings, with a model-selection procedure based on highest intra-cluster reliability in facial pose action units (AUs).

Poses are presented along with their constituent AUs; consistent AUs for this cluster were 6, 7, and 12. These AUs occur in hypothesized facial configurations associated with happiness and amusement (Supplementary Table 1). However, the above facial poses depict configurations that were identified in photographs of actors portraying scenarios that evoked a variety of emotion categories. The associated emotion categories for the scenarios in this cluster (based on participants’ ratings) were happiness, interest, pride, and surprise. Facial configurations were created in FaceGen (Singular Inversions, Inc., Toronto, ON, CA), with AUs set to 100% intensity, except where this would yield visible distortions—in those cases, AUs were set to 80% intensity. Source data are provided in Supplementary Table 3.