Figure 3.

PCC‐seeded FC patterns in the sciatica and healthy groups. DMN of the sciatica group in the pretreated phase (a), post‐treated phase (b) and healthy group (c). Hypoconnectivity between PCC‐seeded FC and left PCu, dmPFC, and cerebellum of the sciatica group after an acupuncture treatment, compared with controls (d, e). Hyperconnectivity with bilateral insula (Ins, marked with a yellow circle in the right), right OFC (f), bilateral IPL (marked with a yellow circle in the right) (g), left dACC (h), and bilateral cerebellum (i). dACC, dorsal anterior cingulate cortex; DMN, default mode network; dmPFC, dorsomedial prefrontal cortex; FC, functional connectivity; Ins, insula; IPL, inferior parietal lobe; OFC, orbitofrontal cortex; PCC, posterior cingulate cortex; PCu, precuneus