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Updated: Jul 13, 2026
09:13
A Real-world What-Where-When Memory Test
Published on: May 16, 2017
Patterns of subjective memory impairment in the elderly: association with memory performance
Frank Jessen1, Birgitt Wiese, Gabriela Cvetanovska
1Department of Psychiatry, University of Bonn, Bonn, Germany. Jessen@uni-bonn.de
Psychological Medicine
|July 12, 2007
Summary
Subjective memory impairment (SMI) in older adults, especially without depression, can predict future dementia. Identifying specific SMI subtypes linked to poor memory performance is crucial for early detection and intervention.
Area of Science:
- Gerontology
- Neuroscience
- Cognitive Psychology
Background:
- Subjective memory impairment (SMI) is a predictor of future dementia, but its association with cognitive performance in healthy elderly individuals is often confounded by factors like depression.
- Identifying distinct SMI subtypes is essential for recognizing at-risk individuals and understanding early stages of cognitive decline.
Purpose of the Study:
- To identify and characterize subtypes of subjective memory impairment (SMI) in unimpaired elderly subjects.
- To determine factors that differentiate these SMI subtypes, particularly in relation to cognitive performance and depressive symptoms.
Main Methods:
- Utilized data from 2389 unimpaired subjects from the German Study on Ageing, Cognition and Dementia (AgeCoDe).
- Employed cluster analysis to identify SMI subtypes based on response patterns to memory complaint questions.
- Applied Classification and Regression Tree (CART) analysis, including variables like depressive symptoms, apoE genotype, delayed recall, and verbal fluency, to differentiate clusters.
Main Results:
- Three distinct clusters of SMI were identified: no complaints, general complaints without specific task complaints, and general complaints with specific task complaints.
- Depressive symptoms were a primary discriminator, distinguishing subjects with no or general complaints from those with specific task complaints.
- In individuals with few depressive symptoms, delayed recall performance differentiated between subjects without memory complaints and those with general or specific memory complaints.
Conclusions:
- Memory complaints in elderly individuals with minimal depressive symptoms are significantly associated with impaired delayed recall.
- Subjective memory impairment, particularly when accompanied by poor delayed recall and low depression levels, may represent an early indicator of future dementia.
- This research highlights the importance of considering memory complaint patterns and cognitive performance in non-depressed elderly individuals for dementia risk assessment.
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