Alpha and beta corticomotor coherence play distinct roles in visuomotor control. A, Lag- and frequency-resolved difference in corticomotor coherence between fast and slow trials (based on a median split), averaged over the selected electrodes (highlighted in black in the topographic map) and the time interval immediately preceding perturbation onset (−0.5 to −0.25 s). The highlighted area indicates the lag (−0.225 to +0.025 s) and frequency (5.5 to 11.5 Hz) intervals belonging to the cluster that survived two-tailed cluster–based permutation statistics for the fast–slow contrast [corrected for multiple comparisons across frequencies (5–35 Hz) and lags (−0.3 to +0.1 s)]. The topographic map shows the fast–slow difference in coherence, averaged over frequencies between 8 and 13 Hz (alpha) and lags between −0.175 and −0.125 s. B, Same as in A, but for the difference between accurate and inaccurate trials. The highlighted area indicates the lag (−0.15 to +0.1 s) and frequency (18.5–30.5 Hz) intervals belonging to the cluster that survived two-tailed cluster–based permutation statistics for the accurate–inaccurate contrast (corrected for multiple comparisons across frequencies (5–35 Hz) and lags (−0.3 to +0.1 s)]. The topographic map shows the accurate–inaccurate difference in coherence, averaged over frequencies between 18 and 30 Hz (beta) and lags between −0.025 and +0.025 s.