only marginally significantp = 0.042
Despite greater impairments in AD than MCI, the difference between MCI and AD was only marginally significant in three ROIs including L.cACC, R.cACC, and R.ACB (L.cACC: p = 0.042; R.cACC: p = 0.023; R.ACB: p = 0.041, uncorrected) (Fig. 3c ).