Researchers report evidence that local, short-range brain connections may help maintain cognitive abilities as people age and gray matter volume declines. The study finds that the health of wiring just beneath the brain’s surface is associated with better language performance, and that it appears to lessen the negative effect of gray matter loss on cognition.
The work examines how two neighboring brain tissue types may work together to support thinking in later life. It analyzes data from 459 adults aged 60 and older living in India. The findings are published in *Alzheimer’s & Dementia: The Journal of the Alzheimer’s Association*. Across outlets, the emphasis is on the idea that not only gray matter amount matters, but also the integrity of nearby local communication pathways, which may help buffer age-related changes.
While the reported results focus on language and overall cognition measures, the outlets do not describe interventions or establish that wiring changes can be caused by treatments. They present correlational evidence from an observational study.
