Table 3 provides a summary of the average number of measurements of a parameter, the mean values by study, Cohen's
D, and adjusted and unadjusted
P values comparing the outcomes between the BIMA and Normal populations for each task and parameter. A comparison of the main sequence profiles between the BIMA and Normal groups revealed no obvious differences (data not shown). During smooth pursuit tasks, BIMA participants made nominally significantly larger saccades compared with Normal participants during the circular task (1.73° ± 0.45° vs. 1.55° ± 0.35°; Cohen's
D = 0.45) and observably larger, but not significantly, for horizontal and vertical ramp tasks. BIMA participants made smaller amplitude saccades for each of the saccadic tasks with only the vertical step task significant after multiplicity adjustment (vertical step: 3.12° ± 0.75° vs. 3.48° ± 0.77°; Cohen's
D =0.47). Consistently, peak saccadic velocity and acceleration were lower for all saccadic tasks with nominally significant differences between BIMA and Normal participants observed for the horizontal step task (absolute peak saccadic velocity: 182.76°/s ± 53.60°/s vs. 205.19°/s ± 47.41°/s; Cohen's
D = −0.44; absolute peak saccadic acceleration: 10,598°/s
2 ± 3263°/s
2 vs. 12,062°/s
2 ± 2998°/s
2; Cohen's
D = −0.47). Mean intersaccadic interval duration for smooth pursuit tasks and mean fixation time for saccadic tasks were lower in BIMA participants compared with Normal with significant differences observed for the intersaccadic interval durations for the circular task (horizontal: 364.93 ms ± 114.55 ms vs. 444.21 ms ± 129.18 ms; Cohen's
D = −0.65; vertical: 367.16 ms ± 88.54 ms vs. 476.07 ms ± 185.51 ms; Cohen's
D = −0.75) and mean fixation time for the horizontal (350.29 ms ± 124.20 ms vs. 415.74 ms ± 115.09 ms; Cohen's
D = −0.55) and vertical step (371.22 ms ± 121.93 ms vs. 436.68 ms ± 117.10 ms; Cohen's
D = −0.55) tasks. Intersaccadic interval velocity was significantly lower for the circular (horizontal: 12.39°/s ± 1.49°/s vs. 12.99°/s ± 1.19°/s; Cohen's
D = −0.44) and horizontal ramp (5.33°/s ± 1.41°/s vs. 5.97°/s ± 0.91°/s; Cohen's
D = −0.55) tasks. The weighted smooth pursuit gains for horizontal ramp were lower for the BIMA group compared with the Normal group (0.59 ± 0.15 vs. 0.66 ± 0.10; Cohen's
D = −0.55). Absolute fixation velocities were higher for BIMA participants compared with Normal participants for the vertical step task (3.52°/s ± 1.05°/s vs. 3.05°/s ± 0.95°/s; Cohen's
D = 0.46).