HEPH and Alzheimer disease: In AD patients, the regions of right CPL, temporal lobe (left ITG, right MTG), frontal lobe (bilateral SFG, left IFG, right MFG and bilateral PrCG), occipital lobe(right MOG), parietal lobe(bilateral SMG, right SPL) showed increased activity in the second resting state after acupuncture comparing to resting state.