Fig. 3.

Sustained α power suppression measured in experiment 1. The top panels show the contralateral (left) and ipsilateral (right) α power suppression for short SOA conditions. The bottom panels show the same for long SOA conditions. The time windows for the stimulus onset and sustained α power suppression are highlighted as in Fig. 2 (with the α suppression window shown in magenta). Error bars on bar graphs represent SEs. The asterisks represent the results of planned t-tests (where * is <0.05 and ** is <0.01).