Experimental design and neuroimaging findings of the included studies: Trigeminal neuropathic pain.

ACC, anterior cingulate cortex; AF, affected side; aINS, anterior insula; ASL, arterial spin labeling; B, bilateral; BOLD, blood-oxygen-level-dependent; CBF, cerebral blood flow; CC, corpus callosum; CL, contralateral; COR, corona radiate; CT, cortical thickness; DWI, diffusion-weighted imaging; FA, fractional anisotropy; FC, functional connectivity; fMRI, functional magnetic resonance imaging; GMV, gray matter volume; IL, ipsilateral; L, left side; MCC, mid-cingulate cortex; MRS, magnetic resonance spectrum; pINS, posterior insula; R, right side; S1, primary somatosensory cortex; S2, secondary somatosensory cortex; SC, structural connectivity (probabilistic tractography); SLF, superior longitudinal fasciculus; sMRI, structural magnetic resonance imaging; TBV, total brain volume; THA, thalamus; TNP, trigeminal neuropathic pain; UF, unaffected side; V2, the maxillary nerve; V3, the mandibular nerve; WMV, white matter volume.