Fig. 9.

Test for conflict-related activity in canceled ERP data in experiments 1 and 2. Normalized mean voltage difference between canceled trials and latency matched no-stop trials in the −50- to 100-ms time window around SSRT was plotted against SSD for experiment 1 (saccadic responses; A) and experiment 2 (unimanual responses; C). The same voltage data as in A and C were plotted against the probability of committing an errant noncanceled saccade at each SSD for experiment 1 (B) and experiment 2 (D). Significant correlations were not observed in either case (see results).