Experimental setup. A) The experimental setup for the visuomotor reaching task. B) Separation of drawing surface (DT bottom) and visual feedback (PT, top). Movement trajectories are digitized by a pen stylus on DT. Direct feedback of the moving arm is prevented by PT. The experiment was continually monitored by a webcam. C) Visual feedback of the participant’s movement from ‘Start’ to ‘Target’, which is represented by a moving green dot on PT.