Which concept refers to efficient existing brain networks?

Which concept refers to efficient existing brain networks?

• A. Cognitive reserve
• B. Neural reserve
• C. Neural compensation
• D. Lifestyle reserve

Answer: (B)

The concept being tested is that some individuals maintain cognitive function because their brain networks operate efficiently and are well organized. This is neural reserve. It refers to the inherent efficiency and integrity of established neural networks, allowing tasks to be performed with less effort or disruption even in the presence of aging or brain pathology. This differs from cognitive reserve, which involves using education, experience, and strategies to engage alternative networks or more flexible processing to cope with damage. Neural compensation, on the other hand, is about recruiting additional or different brain regions to compensate for deficits. The term lifestyle reserve isn’t the mechanism described here; it would relate more broadly to lifestyle factors protecting the brain rather than the efficiency of existing networks.

The concept being tested is that some individuals maintain cognitive function because their brain networks operate efficiently and are well organized. This is neural reserve. It refers to the inherent efficiency and integrity of established neural networks, allowing tasks to be performed with less effort or disruption even in the presence of aging or brain pathology.

This differs from cognitive reserve, which involves using education, experience, and strategies to engage alternative networks or more flexible processing to cope with damage. Neural compensation, on the other hand, is about recruiting additional or different brain regions to compensate for deficits. The term lifestyle reserve isn’t the mechanism described here; it would relate more broadly to lifestyle factors protecting the brain rather than the efficiency of existing networks.