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(A,B) ALFF: RED = sON > rON. Brain areas showing significant ALFF differences between the sON and rON patients. Notes: the different brain regions include the right IPL, left posterior cingulate, and bilateral precuneus. The red areas represent lower ALFF brain regions (corrected p < 0.01 using AlphaSim). Abbreviations: ON, optic neuritis; ALFF, amplitude of low-frequency fluctuation; L, left; R, right.
