Fig. 4.

The contralateral α power suppression measured in experiment 1. A: results from the short SOA condition (top) and long SOA condition (bottom). The waveforms are the difference waves for each set size, and the time windows for the stimulus events and CDA are highlighted as in Fig. 2. Note that the time points along the x-axis indicate the center of the 400-ms time window. The bar graphs show the mean α power suppression during the CDA time window for each set size. B: time course of the contralateral α power suppression for short and long SOA conditions averaged across all set sizes. Error bars represent SEs.