Performance on standard go trials was similarly high in both groups (Supplementary Table S1) but mean RT on correct go trials was faster in the double-response than stop group (M = 424.9, SD = 74.9 vs. M = 599.5 SD = 150.9, respectively), suggesting response strategy adjustments in the stop context (e.g. Aron, 2011 and Verbruggen, Logan, 2009a). Accuracy on signal (double or stop) trials was higher in the double-response than stop group (M = 95.8, SD = 3.2 vs. M = 78.6 SD = 10.4). Because the double-response could be executed during the whole response interval, it is not surprising that accuracy on signal trials was higher in the double-response than in the stop condition. All performance data and statistics are included in Supplementary Table S1.