Figure 1

Experimental setup. (a) Reachability judgment task: participants had to judge whether a target illuminated on their right side was reachable or not, pressing the closer response button with their left index for “reachable” or the more distant button with their middle finger for “unreachable”. The 0 mm target position was physically adjusted for each participant to correspond to the maximum physical distance reachable with the arm fully stretched. (b) Manual reaching task: participants had to reach the visual target with their right index as accurately and as fast as possible.