There were no group differences in RT (p = 0.173). A significant effect of stimulus complexity [F (1, 26) = 8.77; p = 0.006] and response congruence [F (1, 26) = 61.9; p < 0.000] were found. No interactions between factors were seen. RTs for incorrect responses showed no effect of diagnosis (p > 0.326). RTs for all trial types are depicted in Fig. 2.