Smooth eye displacement. a, Gaze velocity following the onset of the mechanical (red) or visual (blue) perturbations. The gray rectangle illustrates the time window of 70–120 ms, during which the gaze velocity following mechanical perturbations displayed significant modulation toward the fingertip. b, Gaze displacement toward the target. Traces were aligned on saccade onset. a, b, Shaded areas represent SE across participants.