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Path of plaque buildup in brain shows promise as early biomarker for Alzheimer's disease. Relatively early accumulation of plaques in temporal lobe was associated with cognitive decline.

Amyloid plaque that starts to accumulate relatively early in the temporal lobe, compared to other areas and in particular to the frontal lobe, was associated with cognitively declining participants, the study found. "Knowing that certain brain abnormality patterns are associated with cognitive performance could have pivotal importance for the early detection and management of Alzheimer's," said senior author Christos Davatzikos, PhD, professor in the Department of Radiology, the Center for Biomedical Image Computing and Analytics, at the Perelman School of Medicine at the University of Pennsylvania.