Comparison of ERP waveforms for control trials.

<p>Waveforms of control trials at Cz and Pz for each group in the a) 0 ms SOA; and b) −400 ms SOA. Significant differences between the groups, based on running <i>t</i>-tests, are indicated in bars underneath. Shaded regions indicate the windows of significant group differences, and topographic maps show the bilingual – monolingual differences (bilinguals averaged over L1 and L2) averaged across these windows; electrodes showing statistically significant differences (<i>p</i><0.05) between the bilinguals and monolinguals across the specified window are indicated by a black square.