Figure 1.

(a) Horizontal saccades elicited with the use of visual LEDs at 20 cm, 40 cm, and 150 cm of the viewing distance from subjects’ eyes. (b) The paradigm used for the gap condition, the central fixation point disappears 200 ms before the appearance of the eccentric target. (c) For the overlap condition, the central fixation point remains illuminated when an eccentric target appears. (d) Typical recordings of saccades are obtained by averaging the position signal of the two eyes (LE+RE)/2. The arrows at ‘i’ indicate the onset of movements.