A) Effect 1 of interaction of presentation rate and semantic categorization overlaid on horizontal slices of the group's mean brain (neurological convention). Numbers at the bottom left of each slice denotes z-coordinate in MNI-coordinates. Statistical maps thresholded at p < 0.005, corrected for cluster size. B) Post-hoc test for interaction effect within significant clusters (see Fig. 3A). Areas of increased response for passive listening with increased presentation rate (red), areas showing an effect of decreased response with increased presentation rate during semantic categorization(blue) and overlap (green) (see Table 4).