Alzheimer's disease and aging reshape brain communication in different ways

AI Summary

A study from Lund University finds that Alzheimer's disease and normal aging alter communication between brain regions in distinct ways. The Alzheimer's-related changes may emerge before cognitive symptoms, potentially helping distinguish early disease effects from normal aging.

Both normal aging and Alzheimer's change how different brain regions communicate with each other. But a new study from Lund University reveals that these alterations follow distinct patterns, with disease-related shifts distinguishable from those linked to normal aging. And the alterations seen in Alzheimer's patients appear early, even before cognitive symptoms emerge. The findings are published in Nature Neuroscience.