Signal variability, cognitive performance in the aging human brain

9 abril 2015

As we age, the physical make up of our brains changes. This includes changes in neural processing in grey matter, but also in the deterioration of structural connections in the brain, which allow communication between distinct brain regions, so the brain is able to work as a well-wired network system. The moment-to-moment variability in brain activity has been studied by researchers, and more specifically, in the blood oxygenation level-dependent signal.