Figure 5.
Group comparisons in prefrontal regions during attentional processing (ac > go; a) and outright stopping (stop > ac; b). Activation maps are collapsed across strategies for attentional processing (left) and outright stopping (right). All maps are thresholded at pFWE < 0.05 (cluster extent, k = 5 voxels). The color scale represents t scores. Group comparisons have been conducted for the following regions of interest: right and left inferior frontal gyrus (IFG)/anterior insula (ant. insula), right inferior frontal junction (IFJ), and pre-supplemental motor area (pre-SMA). MNI coordinates are given in brackets. Strategy-dependent differences in prefrontal regions are present during attentional processing, whereas outright stopping results in indistinguishable brain activity patterns in all strategies. Error bars depict the SEM. The given p values are Bonferroni corrected for multiple comparisons.