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Left Frontal Hub Connectivity Delays Cognitive Impairment In Autosomal-Dominant And Sporadic Alzheimer's Disease, Nicolai Franzmeier, Anne M Fagan, Katrina Paumier, Tammie Benzinger, John C Morris, Randall J Bateman, Et Al.

2010-2019 OA Pubs

Patients with Alzheimer's disease vary in their ability to sustain cognitive abilities in the presence of brain pathology. A major open question is which brain mechanisms may support higher reserve capacity, i.e. relatively high cognitive performance at a given level of Alzheimer's pathology. Higher functional MRI-assessed functional connectivity of a hub in the left frontal cortex is a core candidate brain mechanism underlying reserve as it is associated with education (i.e. a protective factor often associated with higher reserve) and attenuated cognitive impairment in prodromal Alzheimer's disease. However, no study has yet assessed whether such hub connectivity of the left …