Results of Experiment 1.

<p>Panel (a) Percentage correctly identified letters in the dual-task condition. T1-identification in the dual-task condition was significantly lower for lag 0 ms than for all other lags. Panel (b) T2 detection performance in percentage correct in the single- and dual-task conditions. Dual-task results are based on trials with correctly identified letters. T2-detection in the dual-task condition is significantly lower for lags 0 ms, 160 ms and 320 ms than in the single-task condition. Stars mark significant differences between single- and dual-task condition per lag (p<0.05). Note that in this figure chance level is 50%. Error bars reflect 95% confidence intervals in both panels.