Fig. 1.

A schematic summary of the study design. Abbreviations: AAL = Automated Anatomical Labeling; ADAS13 = Alzheimer’s Disease Assessment Scale Cognitive-13; ADNI = Alzheimer’s Disease Neuroimaging Initiative; aMCI_C = amnestic mild cognitive impairment converters; APOE = apolipoprotein E; AUC = area under curve of receiver operating characteristic curve; CDRSB = Clinical Dementia Rating Scale Sum of Boxes; CN = cognitively normal; GMV = gray matter volume; MMSE = Mini-Mental State Examination; RAVLT = Rey Auditory Verbal Learning Test; sMRI = structural magnetic resonance imaging.