Fig. 1: Aiming and Tracking Experiments.
From: Proprioceptive disturbances in weightlessness revisited
a Moving the joystick onboard the ISS. b The static target screen showing green targets and yellow aiming cursor. The task was to place the aiming cursor in the centre of the selected target. Vertical and horizontal tracking task (c, d): the target to track (green) moved from the centre to the top of the target screen, or from the centre to the right (1), then reversed, passing through the centre (2) and then reversed again to return to the centre (3). The task was to try to keep the grey aiming cursor within the target throughout the movements.
