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Supplementary Table 1. Conscious response inhibition Inhibited weakly masked No-Go trials > responded weakly masked Go trials. No-Go > Go Side BA X Y Z Z-value at Number of local maximum voxels Right frontal network 7826 Frontal orbital cortex/Anterior insula R 47 32 22 -12 5.32 Frontal orbital cortex/Frontal operculum cortex R 47 44 22 -6 5.01 Frontal pole R 9 36 54 24 4.93 Frontal pole R 9 26 52 32 4.86 Frontal pole R 9 42 48 26 5.08 Superior frontal gyrus R 6 26 2 64 4.91 Right parietal cortex 4337 Angular gyrus R 40 52 -52 42 5.75 Lateral Occipital Cortex/Angular gyrus R 40 44 -58 52 5.45 Angular gyrus/Supramarginal gyrus R 40 40 -48 44 4.66 Angular gyrus/Supramarginal gyrus R 40 54 -46 40 5.49 Angular gyrus/Supramarginal gyrus R 40 56 -46 28 5.23 Angular gyrus R 40 62 -52 28 5.18 Left frontal cortex 546 Frontal orbital cortex L 47 -30 26 -10 4.47 Temporal pole/Frontal orbital cortex L 47 -38 14 -20 4.06 Insula/Frontal orbital cortex L 13 -40 14 -12 4.24 Left parietal cortex 702 Supramarginal gyrus/Angular gyrus L 40 -58 -50 28 4.10 Supramarginal gyrus/Angular gyrus L 40 -66 -50 26 3.94 Supramarginal Gyrus/Angular Gyrus L 40 -56 -48 38 3.84 Supramarginal Gyrus/Angular Gyrus L 40 -56 -50 34 3.59 1 Angular gyrus/Lateral Occipital Cortex L 40 -58 -56 46 3.62 Angular gyrus/Lateral Occipital Cortex L 40 -56 -56 50 3.48 Cingulate gyrus, posterior division* R 23 4 -22 26 4.21 92 Precuneus* R 7 10 -72 44 3.82 89 Superior parietal lobule* R 7 26 -56 64 3.52 16 Middle temporal gyrus* R 21 50 -26 -12 3.42 10 Frontal pole* R 9 46 46 4 3.39 9 Middle temporal gyrus* R 21 60 -44 -4 3.34 8 Frontal pole* L 9 -30 54 26 3.59 7 Frontal pole* R 9 26 46 -14 3.53 5 Note: Z > 2.3, whole-brain cluster-corrected (p < 0.05, GRFT). 4 clusters, local maxima in MNI coordinates. *Brain areas surviving p < 0.001 uncorrected (cluster extent of 5 significant voxels), in addition to the 4 clusters already reported. 2 Supplementary Table 2. Unconscious response inhibition Responded strongly masked No-Go trials > responded strongly masked Go trials. No-Go > Go Side BA X Y Z Z-value at Number of local maximum voxels Inferior frontal cortex*^ R 47 36 28 2 4.10 52 Inferior frontal cortex*^ L 47/48 -42 12 -4 3.71 34 Pre-supplementary motor area*^ L 6 -6 2 52 3.52 28 Cingulate gyrus, posterior division* L 23 -6 -34 22 3.50 28 Frontal pole* R 9 22 50 -16 3.80 19 Brainstem* L -6 -38 -32 3.31 13 Superior parietal lobule* L 7 -34 -52 46 3.38 9 Brainstem* R 8 -30 -26 3.50 8 Frontal pole* L 9 -30 50 -14 3.48 6 Superior parietal lobule* L 7 -36 -58 52 3.27 6 Note: *Brain areas surviving p < 0.001 uncorrected (cluster extent of 5 significant voxels). Activation peaks in MNI coordinates. ^Brain areas surviving multiple comparisons corrections across a small volume of interest (for details see Methods and Results). 3.

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