Retrospective metamemory monitoring of semantic memory in community-dwelling older adults with subjective cognitive decline and mild cognitive impairment.
Susan Y Chi, Elizabeth F Chua, Dustin W Kieschnick and 1 others
PMID 33106082WHAT IT FOUND
Older adults with non-amnestic mild cognitive impairment were less confident in their correct answers and had poorer memory monitoring than healthy peers.
Those with subjective cognitive decline monitored their memory as accurately as healthy controls.
Key findings
01Participants with non-amnestic mild cognitive impairment (naMCI) had significantly lower confidence in correct answers and poorer metamemory monitoring accuracy compared to healthy controls.
02Participants with subjective cognitive decline (SCD) performed comparably to healthy controls on all dimensions of memory monitoring accuracy.
03Participants with amnestic mild cognitive impairment (aMCI) had poorer calibration but preserved relative monitoring accuracy compared to healthy controls.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
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What it does not show
Small sample sizes for the MCI subgroups (14 aMCI, 31 naMCI). The general knowledge task may have been too easy to detect subtle differences in monitoring accuracy. The time limits for responses (9 seconds for recognition, 5 seconds for confidence) may have been too short for some participants.
Declared interests
The authors declared no conflicts of interest. The study was supported by the National Institute on Aging.
The easy way to misread this
Do not assume that poor memory monitoring in MCI is uniform across subtypes. Non-amnestic MCI patients struggle with monitoring semantic memory, while amnestic MCI patients may retain this ability despite memory deficits.