Cited by 243Dementia and Cognitive Impairment ResearchCerebrovascular and genetic disordersNeurological Disease Mechanisms and Treatments

Correlations between MRI white matter lesion location and executive function and episodic memory

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Smith, E.E., Salat, D.H., Jeng, J., McCreary, C.R., Fischl, B., Schmahmann, J.D., Dickerson, B.C., Viswanathan, A. +3 more·2011·Neurology

Abstract

OBJECTIVES: MRI white matter hyperintensity (WMH) volume is associated with cognitive impairment. We hypothesized that specific loci of WMH would correlate with cognition even after accounting for total WMH volume. METHODS: Subjects were identified from a prospective community-based study: 40 had normal cognition, 94 had mild impairment (defined here as a Clinical Dementia Rating [CDR] score of 0.5 without dementia), and 11 had mild Alzheimer's dementia. Factor analysis of a 22-item neuropsychological battery yielded 4 factors (episodic memory, executive function, spatial skills, and general knowledge). MRI WMH segmentation and analysis was performed using FreeSurfer software. RESULTS: Higher WMH volume was independently associated with lower executive function and episodic memory factor scores. Voxel-based general linear models showed loci where WMH was strongly inversely associated with specific cognitive factor scores (p < 0.001), controlling for age, education, sex, APOE genotype, and total WMH volume. For episodic memory, clusters were observed in bilateral temporal-occipital and right parietal periventricular white matter, and the left anterior limb of the internal capsule. For executive function, clusters were observed in bilateral inferior frontal white matter, bilateral temporal-occipital and right parietal periventricular white matter, and the anterior limb of the internal capsule bilaterally. CONCLUSIONS: Specific WMH loci are closely associated with executive function and episodic memory, independent of total WMH volume. The anatomic locations suggest that WMH may cause cognitive impairment by affecting connections between cortex and subcortical structures, including the thalamus and striatum, or connections between the occipital lobe and frontal or parietal lobes.

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Research works printed but not linked: 2

  1. de Groot JC, de Leeuw FE, Oudkerk M, et al. Cerebral white matter lesions and cognitive function: the Rotter- dam Scan Study. Ann Neurol 2000;47:145-151.
  2. Fischl B, Salat DH, Busa E, et al. Whole brain segmenta- tion: automated labeling of neuroanatomical structures in the human brain. Neuron 2002;33:341-355.

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Authors
Smith, E. E., Salat, D. H., Jeng, J., McCreary, C. R., Fischl, B., Schmahmann, J. D., Dickerson, B. C., Viswanathan, A., Albert, M. S., Blacker, D., & Greenberg, S. M.
Affiliations
University of Calgary (CA)
Venue
Neurology
Published
2011-04-26
Volume
76
Issue
17
Pages
1492-1499
ISSN
  • 0028-3878 (ISSN-L)
  • 1526-632X
OpenAlex
W2169452761
Cited by
243
References
42
Citations by year
2026: 11 · 2025: 16 · 2024: 10 · 2023: 14 · 2022: 14 · 2021: 17 · 2020: 15 · 2019: 24 · 2018: 20 · 2017: 19 · 2016: 11 · 2015: 15 · 2014: 14 · 2013: 26 · 2012: 14
FWCI
12.47
Type
journal article
Language
en
Open access
Locations
  • Neurology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Alzheimer's Association
  • Dana Foundation
  • Sidney R. Baer, Jr. Foundation
  • Bristol-Myers Squibb
  • Eli Lilly and Company
  • Pfizer
  • University of Oxford
  • National Institutes of Health
  • Genentech
  • National Institute on Aging (R01AG26484, P01AG04953, R01AG026484, P01AG004953)
  • National Heart, Lung, and Blood Institute
  • National Institute of Neurological Disorders and Stroke (AG26484, R01NS062028)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Neurology › Cerebrovascular and genetic disorders
  • Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
Keywords
white matter hyperintensities, executive function, episodic memory, mild cognitive impairment, Alzheimer's disease, periventricular white matter, internal capsule, cognitive impairment
MeSH terms
Aged, Aged, 80 and over, Brain, Brain Mapping, Cognition Disorders, Female, Humans, Longitudinal Studies, Magnetic Resonance Imaging, Male, Memory Disorders, Nerve Fibers, Myelinated, Neuropsychological Tests, Mental Recall, Residence Characteristics, Statistics as Topic, Executive Function

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