Congruent – Incongruent Comparison Location Hemisphere X Y Z Superior Frontal Gyrus (BA 6) L -10 36 56 Medial Frontal Gyrus (BA 9) R 6 50 20 Precuneus (BA 19) R 40 -76 48 Supramarginal Gyrus (BA 40) L -64 -46 26 Incongruent – Congruent Comparison   Location Hemisphere   X Y Z Occipital Lobe, Cuneus L -10 -98 18  Posterior Cingulate (BA 30) R 26 -66 10 Sublobar, Insula R 46 -4 14 Superior Frontal Gyrus (BA 6) R 4 10 52

Table 3: Brain activation in response to Stroop task in the healthy controls. The results were thresholded at z=2.3 and corrected for multiple comparisons at cluster Significance level of P<0.05