Similar brain patterns linked to memory errors in older adults
In a brain-scan study of 61 adults, similar patterns between learning and recall were linked to accurate answers in younger adults but category mix-ups in older adults.
Limit: Detailed results found no reliable age association with same-category versus different-category error tendencies
Edited by Boris Djordjevic · AgingResearch.News
In an observational study, 61 adults aged 18–74 underwent brain scans while learning and recalling face–object and face–scene pairs. Researchers compared activity patterns in the hippocampus, a brain region involved in memory, during learning, subsequent rest and recall.
Greater age was linked to less similarity between patterns across these stages and poorer memory for the pairings. Similarity between learning and recall patterns was linked to better accuracy in younger adults, with weaker relationships in middle-aged and older adults. Only among older adults, greater similarity across stages was linked to more category errors, such as choosing a scene when the correct match was an object. The authors interpreted this as suggesting a shift from reactivating specific associations toward mixing up categories with age.
Why it matters
Remembering which elements of an experience belong together becomes harder with age. This work addresses whether continuity in memory-related brain activity helps account for that decline.
Caveats
This cross-sectional study cannot show that aging caused the differences, and it excluded people reporting neurological or psychiatric disorders. The abstract reports more category errors with age, but the detailed results found no statistically reliable age association with the relative tendency to make same-category versus different-category errors.
The paper
Binghamton University
Cerebral Cortex, Jul 14, 2026, Open access
Comments
Be the first to comment.