Fig. 2

Regions showing significant differences in fALFF between R-CH patients during the non-painful period and normal controls, with a threshold of P < 0.01. The color bar indicates the t-score of brain regions with fALFF differences between CH patients during the non-painful period and normal controls, R: right; L: left. A The right cerebellum (x = 45, y = − 66, z = − 42). B The right cingulate gyrus (x = 3, y = − 30, z = 39). C The right superior parietal lobule (x = 36, y = − 60 z = 51). D The right inferior parietal lobule (x = 48, y = − 45, z = 48). E The right postcentral gyrus (x = − 9, y = − 60, z = 54). F The left precuneus (x = 15, y = − 60, z = 72)