highly significantP < 0.001
The relationship between neural slowing and amyloid-β burden was highly significant [ t (570037) = –61.97, P < 0.001], such that greater regional amyloid-β burden was associated with stronger oscillatory slowing across cortical regions, and this effect was greater in patients with probable Alzheimer’s disease than those with aMCI [ t (570036) = −9.52, P < 0.001; Fig. 4 ].