Fig. 1: Overview of the procedure.

a Stimulus structure used, with target locations following a fixed sequential order length of 12. The fixed target sequence maintained an equal number of red and blue dot targets (i.e., six red dot targets and six blue dot targets), but the color order in the sequence was randomized. b The experiment comprised eight blocks. Blocks 1 to 6 and 8 were constructed from a fixed sequence of locations, while the seventh block was constructed from an interference sequence of locations. c Temporal organization of the trials. d Schematic representation of the experimental procedure. The human figures represent the participants. In the joint context, two actors sat side-by-side and performed the complementary task jointly, responding to their pre-assigned targets (e.g., participants sitting on the left responded to the blue dot targets). In the baseline context, one actor and one observer sat side-by-side. Only the actors were required to perform their pre-assigned targets, while the observers simply observed the screen without responding.