When functional blurring becomes deleterious: Reduced system segregation is associated with less white matter integrity and cognitive decline in aging. - Robin Pedersen; Linda Geerligs; Micael Andersson; Tetiana Gorbach; Bárbara Avelar-Pereira; Anders Wåhlin; Anna Rieckmann; Lars Nyberg; Alireza Salami (NeuroImage, 2021)