Fig. S2.

Experimental paradigm. In the OBS task, participants were asked to either observe the placing of the ball action (Ctrl) or pay attention to the style of social actions [vitality form (VF) condition]. In the IMA task, participants were asked to imagine performing the action in a neutral way (Ctrl) or a gentle and a rude way (VF condition). Within blocks, after each experimental stimulus was present an interstimulus interval (ISI) and between two sequential experimental blocks was present in an interblock interval. The interblock interval was composed of a catch trial (video stimulus of an action plus a task-related questionnamed Resp) and a 10-s interval (INT).