Abstract
Objective: Analysis sought to determine whether Wechsler Memory Scale-Logical Memory (LM)-correct responses and errors were related to magnetic resonance imaging (MRI) brain volume measurements. Methods: The LM immediate (LM-I) and LM delay (LM-D) free recall correct responses and related and unrelated errors were scored. Principal components analysis yielded a 3-factor solution: LM-I and LM-D correct responses, LM-I and LM-D-unrelated errors, and LM-I/-D-related errors. The MRI total cerebral brain volume, frontal brain volume, temporal horn volume (THV), and white matter hyperintensities volume (WMHIV) were obtained. Results: Increasing THV (suggesting greater regional atrophy) was associated with lower scores on the LM-correct responses factor. Extensive WMHIV was associated with higher scores on the LM-related errors factor. Conclusion: These results suggest that LM-correct responses could relate to emerging brain alterations. Longitudinal research might enhance the sensitivity of this test to identify preclinical impairment and persons at risk of mild cognitive impairment and dementia.
Original language | English (US) |
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Pages (from-to) | 622-628 |
Number of pages | 7 |
Journal | American Journal of Alzheimer's Disease and other Dementias |
Volume | 30 |
Issue number | 6 |
DOIs | |
State | Published - Sep 13 2015 |
Externally published | Yes |
Keywords
- Alzheimer's disease
- Boston process approach
- Logical Memory
- declarative memory
- preclinical dementia
ASJC Scopus subject areas
- Geriatrics and Gerontology
- Psychiatry and Mental health
- Clinical Psychology
- General Neuroscience