Table 2.
Lead distance of gaze relative to finger position in centimeters computed as follows: I, the best fit of τo =
(SD obtained by bootstrap procedure with n = 100); II, the product of finger velocity v and primary lead time τ0; and III, the distance between gaze and finger position at each saccade onset
| Subject | Mean ± SD (cm) [median (cm)] | ||
|---|---|---|---|
| Method I | Method II | Method III | |
| S1 | 2.2 ± 0.3 | 2.5 ± 1.0 [2.6]a | 3.8 ± 2.5 [3.1]b |
| S2 | 1.5 ± 0.2 | 1.7 ± 1.0 [1.6] | 2.9 ± 2.3 [2.2]b,c |
| S3 | 1.5 ± 0.2 | 1.8 ± 1.7 [1.5] | 3.0 ± 1.9 [2.6]b,c |
| S4 | 2.9 ± 0.2 | 3.3 ± 0.8 [3.3]a | 4.2 ± 2.5 [3.9]b |
| S5 | 3.5 ± 0.1 | 3.6 ± 0.6 [3.6] | 3.7 ± 2.3 [3.3] |
| All subjects | 2.6 ± 0.1 | 2.6 ± 1.4 [2.7] | 3.6 ± 2.4 [3.1]b,c |
-
↵a,b,cSignificant difference (p < 0.05) between the lead distance distribution obtained by methods I and II, methods I and III, and methods II and III, respectively.