Department of Neurology;
Second Medical Center;
National Clinical Research Center for Geriatric Disease;
Chinese PLA General Hospital;
Beijing;
China;
Department of Geriatrics;
Affiliated Hospital of Chengde Medical University;
Chengde;
Hebei Province;
China;
State Key Laboratory of Cognitive Neuroscience and Learning;
Beijing Normal University;
Beijing;
China;
Center for Collaboration and Innovation in Brain and Learning Sciences;
Beijing Normal University;
Beijing;
China;
Beijing Key Laboratory of Brain Imaging and Connectomics;
Beijing Normal University;
Beijing;
China;
Department of Neurology;
First Medical Center;
Chinese PLA General Hospital;
Beijing;
China;
Department of Neurology;
PLA Rocket Force Characteristic Medical Center;
Beijing;
China;
Department of Radiology;
Second Medical Center;
Chinese PLA General Hospital;
Beijing;
China;
Department of Neurology;
Tianjin Huanhu Hospital;
Tianjin;
China;
Alzheimer’s disease; amnestic mild cognitive impairment; blood oxygen level-dependent; default mode network; dynamic functional connectivity; frontoparietal network; resting-state functional magnetic resonance imaging; support vector machine;