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![Divided Brain. Researchers defined 400 brain regions. For each one, they measured its tau accumulation and functional connectivity to every other region. Regions that form part of larger networks are color coded. [Courtesy of Franzmeier et al., Nature Communications, 2020.]](/sites/default/files/styles/news_scale_crop_120x120_/public/2020-10/franzmeier-brain_architecture_and_tau_spread.jpg?itok=oZKlgU4M)
