highly significantp = 0.001
When instead considering saccades only (Figure 5A ), a picture consistent with the analysis above (section “Real-Life”) emerged: the standard deviation of saccade peak velocities yielded highly significant differences between the groups [vertical: F (2, 28) = 8.53, p = 0.001; horizontal: F (2, 28) = 12.42, p < 0.001].