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Scatter plots indicate the correlation between change in pain bothersomeness score and corresponding change in mean z value of VTA-bilateral ACC/mPFC rsFC across all cLBP subjects adjusted for age and gender. Abbreviations: VTA, ventral tegmental area; ACC/mPFC, anterior cingulate cortex/medial prefrontal cortex; rsFC, resting-state functional connectivity; cLBP, chronic low back pain.
