Figure 4

Experimental design and procedure description.
Panel A (top): 1. Priming test using a scrambled sentence task was applied on the experimental participants only (Schizophrenia patients or age-matched healthy controls); 2. coordination task using the hand-held pendulums consisted in performing movements in opposite directions while watching each other's pendulum; 3. Both participants of a dyad rated the feeling of connectedness towards each other using a “pen and paper” debriefing questionnaire. Panel B (bottom-left): Pendulum combination corresponding to the three leadership conditions (a. Pendulum held by the primed participant; b. Pendulum held by the synchronization partner; c. Mass located on the bottom to create a slow pendulum; d. Mass located on the top to create a fast pendulum; e. Ergonomic handle; f. Aluminum frame supporting the pendulum axis). Panel C (bottom-right): 10 s sample of recorded time series of participants performing the coordination in opposite directions. This figure has been genuinely created by MV and RNS. MV used the 3D softwares Poser 8 and CINEMA 4D R12 for the 3D environment. RNS used Blender 2.7, Photoshop CS6, Illustrator CS6, Powerpoint for Mac 2011 and Matlab 2013b to finalize the rendering.