Brain patterns linked to high test scores shift around age 55
An observational study of 302 adults aged 18–87 linked stronger cognitive performance to different brain activity patterns before and after about age 55.
Limit: Within-person changes in brain activity with aging were not measured
Edited by Boris Djordjevic · AgingResearch.News
In an observational study, researchers measured brain activity in 302 adults aged 18–87 during a 30-minute set of cognitive tests. They used a whole-head, light-based imaging method to map activity in the brain’s outer layer. Older age was associated with lower scores on an overall measure of cognitive performance.
The relationship between brain activity and performance differed around age 55. Before that age, higher performers showed more variable activity across tasks. After that age, higher performance was associated with less distinct activity patterns across brain regions. The authors interpreted this later pattern as a compensatory strategy supporting cognitive performance.
Why it matters
Maintaining thinking skills is a central concern in brain aging. The authors propose their approach as a scalable way to study cognitive resilience and vulnerability across adulthood.
Caveats
These observational links cannot establish that the brain patterns caused better performance, and the sample covered only ages 18–87. The findings are from a preprint that has not been peer-reviewed.
The paper
Brain dynamics supporting high cognitive performance reorganize after midlife
Kernel
bioRxiv, Jun 5, 2026, Open access, CC BY-NC-ND, Preprint, not peer-reviewed
