Figure 1.

Single-body postures used in the study and coordinates for measuring the distance between limbs. a, The eight body postures presented in the single-body condition and used to create the facing and nonfacing dyads. b, Example of coordinates on the two bodies of a dyad, which were considered to quantify the distance between limbs. Distance corresponded to the number of pixels along the x-axis, between the centroids of the upper limbs of the two bodies, and between the two closest points on the limbs of the two bodies. The green dots denote the centroids of the hand-to-elbow area delimitated by red dots. The red dot closest to the center of the screen was used to quantify the distance between extremities.