Bibliographic Details
| Title: |
Deficits in memory metacognitive efficiency in late adulthood are related to distinct brain profile. |
| Authors: |
Pupillo, Francesco1,2 (AUTHOR) F.Pupillo@tilburguniversity.edu, Düzel, Sandra3 (AUTHOR), Kühn, Simone4,5 (AUTHOR), Lindenberger, Ulman4,6 (AUTHOR), Shing, Yee Lee1,7 (AUTHOR) |
| Source: |
Memory. Nov2024, Vol. 32 Issue 10, p1286-1302. 17p. |
| Subject Terms: |
*INSULAR cortex, *RESEARCH funding, *FALSE memory syndrome, *BRAIN, *PREFRONTAL cortex, *MAGNETIC resonance imaging, *CHI-squared test, *CONFIDENCE, *COGNITION disorders, *AGING, *MEMORY disorders, *ADULTS |
| Abstract: |
The tendency of falsely remembering events that did not happen in the past increases with age. This is particularly evident in cases in which features presented at study are re-presented at test in a recombined constellation (termed rearranged pairs). Interestingly, older adults also express high confidence in such false memories, a tendency that may indicate reduced metacognitive efficiency. Within an existing cohort study, we aimed at investigating age-related differences in memory metacognitive efficiency (as measured by meta d' ratio) in a sample of 1522 older adults and 397 young adults. The analysis showed an age-related deficit in metacognition which was more pronounced for rearranged pairs than for new pairs. We then explored associations between cortical thickness and memory metacognitive efficiency for rearranged pairs in a subsample of 231 older adults. By using partial least square analysis, we found that a multivariate profile composed by ventromedial prefrontal cortex, insula, and parahippocampal cortex was uniquely associated with between-person differences in memory metacognitive efficiency. These results suggest that the impairment in memory metacognitive efficiency for false alarms is a distinct age-related deficit, above and beyond a general age-related decline in memory discrimination, and that it is associated with brain regions involved in metacognitive processes. [ABSTRACT FROM AUTHOR] |
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