Fig. 3: Effect of experimental control on the eye movement traces and neural representations during central tracking trials.

a Average eye velocity traces of central target tracking trials (\(-30^\circ\)) with an upper directional cue (\(0^\circ\), colored solid lines) and lower directional cue (\(-60^\circ\), colored dashed lines) rotated by -\(30^\circ\). The bar graphs in the inset show the distance between two eye velocity traces at 100 ms after pursuit latency for 100% (blue) and 12% (red) contrast conditions. The color-shaded areas and error bars show the standard errors. \(* * p < 0.01\), two-sample t-test. The illustration at the left shows motion directions in cue and pursuit targets for calculating eye velocities (Fig. 3a) and EEG dissimilarity (Fig. 3b). b EEG activity pattern dissimilarity between central target tracking trials with upper and lower directional cues. A visual stimulus appeared at 0 ms, and global motion occurred at 100 ms. The blue line (100% contrast) and the red line (12% contrast) at the bottom show the time points where Mahalanobis distance was significantly different from zero (two-sided cluster-based permutation test, n = 14, cluster-defining threshold \(p\) \( < \) \(0.05\), corrected significance level \(p\) \( < \) \(0.05\), 50000 permutations). The color-shaded areas denote the standard errors.