Fig. 2.

Contralateral delay activity (CDA) results from experiment 1. The top panel shows the results from the short stimulus-onset asynchrony (SOA) condition, and the bottom panel shows the results from the long SOA condition. The waveforms are the difference waves for each set size, and the time windows for the stimulus events [dark gray region for the cue; light gray region for the memory array (Stim)] and the CDA (magenta region) are highlighted. The bar graphs show mean CDA amplitudes for each set size. Error bars on the bar graphs represent SEs. Asterisks represent the results of planned t-tests (where * is <0.05, ** is <0.01, and *** is <0.001).