EEG and fNIRS results. Left: the grand average of alpha MI values (±SEM error bars) for a trial time window (−100 to 1000 ms) for the T-only (A) and D-only (B) and T + D cueing trials (C) across participants. The scalp topographies show opposite patterns of alpha MI and significant electrodes (white dots: P7/P8, P3/P4, O1/O2) within the posterior brain regions. The dashed square on the EEG topographies shows the scope of the fNIRS measurements. Right: the T-map shows regions with significant contralateral effects (contralateral > ipsilateral; P < 0.050) for the T-only (D), D-only (E) and T + D cueing trials (F) across participants. Note that we have shown the left view instead of the mirror-image views of lateralized HbO activity. (^*P < 0.050,^***P < 0.001).