Figure 6.

A: Increase in the number of activated voxels in RFX as a function of increasing N‐sub. For each N‐sub value, 50 randomisations of our subjects were analysed with RFX. Each point represents the activated volume of one RFX analysis with a given N‐sub. Note that we have only one value for number of voxels when N‐sub reached our group size (50 subjects); we obviously need a larger group size to illustrate also the variability when N‐sub equal 50. B: The number of activated regions in the left (solid line) and the right (dashed line) hemisphere increases with the number of subjects included in the RFX analysis. Note that for both hemispheres, the number of regions was ‘normalised’ to the total number observed in the RFX analysis with 50 subjects (i.e., seven regions in the left hemisphere; three regions in the right hemisphere, see Table I). C–D: Same analysis as in A–B but with averaged t‐maps approach.