executive function tagged posts

Type 2 Diabetes Accelerates Brain Aging and Cognitive Decline

Aging effects on the brain, further exacerbated in type 2 diabetes. Image credit: Lilianne Mujica-Parodi (CC BY 4.0)

Scientists have demonstrated that normal brain aging is accelerated by approximately 26% in people with progressive type 2 diabetes compared with individuals without the disease, reports a study published today in eLife.

The authors evaluated the relationship between typical brain aging and that seen in type 2 diabetes, and observed that type 2 diabetes follows a similar pattern of neurodegeneration as aging, but which progresses faster. One important implication of this finding is that even typical brain aging may reflect changes in the brain’s regulation of glucose by insulin.

The results further suggest that by the time type 2 diabetes is formally diagnosed, the...

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Connection found between Fitness Level, Brain Activity, and Executive Function

Brain function associated with higher cardiorespiratory fitness plays a role in increased cognitive performance in older adults, according to a new study. Specifically, the scientists found that dual-task processing in a core executive function brain region is associated with higher cardiorespiratory fitness and dual-task performance.

With fMRI scans in the Beckman Institute’s Biomedical Imaging Center, the researchers found that certain regions of the brain were activated more when performing two simultaneous tasks compared to a single task.

“The reason we looked at dual-task specifically is because it’s a measure of executive function, which is required for multiple cognitive processes, such as working memory, task management, coordination, and 3inhibition,” said Wong...

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