Khachaturian AS, Hayden KM, Mielke MM, Tang Y, Lutz MW, Gold M, Kukull WA, Mohs R, Gauthier S, Molinuevo JL, Zetterberg H, Khachaturian ZS. New thinking about thinking, part two. Theoretical articles for Alzheimer's & Dementia. Alzheimers Dement. 2018 May 26. doi:10.1016/j.jalz.2018.05.002