Figure 4.

Identifying the origin of the LPFC GBC–gF correlation. A, We systematically restricted the connectivity contributing to the calculation of the GBC–gF correlation to determine the contributing connectivity strength ranges. LPFC's group average connectivity map was split into Fz 0.05 “strength bands” and restricted GBC–gF correlations calculated using those voxels. All strength ranges were significant, except the highest and lowest, likely due to the low number of voxels included in these 2 strength ranges. This likely indicates that the GBC–gF effect is global in origin, such that the more voxels that are included the better the connectivity–gF correlation. This is in contrast to the effect originating from high-strength connectivity, in which restricting to higher strength connections would improve the connectivity–gF correlation. B, The LPFC seed connectivity group map is shown, colored by connectivity strength ranges (corresponding to colors in A).