Figure 4. rs fcMRI conjunction maps.

Amygdala connectivity maps for each temperament type were directly compared to the two other types and a matched control population. Results from each of these comparisons are provided in Table 1. The figure is a conjunction map for the comparisons. For each comparison (i.e. Mild vs Surgent, Mild vs Irritable, Mild vs Control – and similar for each of the two other subgroups), a voxel was coded as either 0 (not significantly different between groups) or 1 (significantly different between groups). Maps based on this coding were summed such that voxels that never differ between groups will have a value of 0 and voxels that differ in all comparisons for that group have a value of 3. In A) the Mild type differed from other types in areas in the posterior cingulate/precuneus (black arrow). B) As with the Mild type, the Surgent type also showed areas in the posterior cingulate and precuneus (black arrow) where it was distinct from at least 2 other groups. C) The Irritable type was quite distinct from Mild, Surgent, and control populations in the anterior insula (black arrows) – a region important for emotional regulation and task level control.