Fig. 3: Group differences in right centromedial amygdala (rCMA) resting-state functional connectivity (FC).

A Whole-brain contrasts (IH > non-IH) revealed three significant clusters showing greater rCMA FC in the Intrusive-Hypervigilant (IH) group within the parietooccipital sulcus (POS), precuneus (Precun), and medial prefrontal cortex (mPFC). B Radar plot depicting the number of voxels within the significant clusters that overlap with the 7 networks of the Yeo atlas, demonstrating the clusters were predominantly within the default mode network (DMN) and visual network. C Post hoc individual group contrasts revealed that the IH group showed significantly greater rCMA FC than both the High and Low symptom groups across all three clusters. FPN frontoparietal network, SM somatomotor network, VAN ventral attention network, DAN dorsal attention network, **** < 0.001, ***** < 0.0005, ****** < 0.0001.