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Altered left midcingulate cortex FC in CTN patients. The CTN patients showed significantly decreased FC between the left midcingulate cortex and visual network, left paracentral lobule compared with HCs (p < 0.05, FDR corrected, cluster >100 voxels). FC, functional connectivity; CTN, classic trigeminal neuralgia; HCs, healthy control subjects; FDR, false discovery rate.
