Figure 6.

Actual trajectories of the movement. The trajectories of the index finger during movement in the three eye/target configurations in one participant. Solid lines indicate the averaged trajectory and gray crosses the X and Y variabilities along the movement. Note that, although the square of the initial hand position was on the midsagittal line (see Figure 1B), as all participants held the hand horizontally rotated with respect the midline of the screen, the marker of the index resulted more deviated to the left with respect to the origin of the axes defined, by system calibration, on the center of initial hand position square.