Cited by 32Dementia and Cognitive Impairment ResearchNeural and Behavioral Psychology StudiesAlzheimer's disease research and treatments

Apolipoprotein E ε4-related thickening of the cerebral cortex modulates selective attention

Espeseth, Thomas, Westlye, Lars T., Walhovd, Kristine B., Fjell, Anders M., Endestad, Tor, Rootwelt, Helge, Reinvang, Ivar·2012·Neurobiology of Aging

Abstract

APOE ε4 carriers have thicker cortex in several neocortical areas than ε4 noncarriers (Espeseth T., Westlye L.T., Fjell A.M., Walhovd K.B., Rootwelt H., Reinvang I., 2008. Accelerated age-related cortical thinning in healthy carriers of apolipoprotein E ε4. Neurobiol. Aging 29, 329-340). To investigate potential physiological and cognitive correlates of these anatomical effects structural magnetic resonance imaging (MRI) data were obtained from 20 APOE ε3 homozygotes and 20 ε4 hetero- and homozygotes, and event-related potentials (ERPs) were recorded during a selective attention task (i.e. three-stimulus oddball). Several areas in both hemispheres were thicker in ε4 carriers than in noncarriers. ε4 carriers also had lower amplitudes to distractors (P3a) and lower target detection accuracy than noncarriers. Mean thickness in cortical areas were correlated with P3a amplitudes, which in turn correlated with accuracy. Path analyses showed that APOE-related difference in accuracy was mediated by APOE-related differences in cortical thickness and P3a amplitudes. The results suggest that APOE ε4 modulates the structural integrity of critical nodes in brain attentional networks.

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Crossref · 10.1016/j.neurobiolaging.2009.12.027

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  • APOE4 carriers feature decreased cortical thickness and smaller hippocampal volume, and advanced MCI age compared to non-carriers.

    “Studies showed that APOE4 carriers featured decreased cortical thickness and smaller hippocampal volume, and with an advanced mild cognitive impairment (MCI) age compared to non-carriers [462–464].”

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Authors
Espeseth, T., Westlye, L. T., Walhovd, K. B., Fjell, A. M., Endestad, T., Rootwelt, H., & Reinvang, I.
Affiliations
  • University of Oslo (NO)
  • Oslo University Hospital (NO)
Corresponding author
Espeseth, Thomas
Venue
Neurobiology of Aging
Publisher
Elsevier BV
Published
2012-02
Volume
33
Issue
2
Pages
304-322.e1
ISSN
0197-4580 (ISSN-L)
OpenAlex
W2052247425
Cited by
32
References
161
Citations by year
2026: 1 · 2024: 3 · 2021: 2 · 2020: 3 · 2019: 4 · 2018: 1 · 2017: 1 · 2016: 2 · 2015: 1 · 2014: 5 · 2013: 3 · 2012: 3
FWCI
1.96
Type
journal article
Language
en
Open access
closed
Locations
  • Neurobiology of Aging (publishedVersion)
  • PubMed (publishedVersion)
Funders
Norwegian Research Council (154313/V-50)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
Keywords
APOE ε4, cortical thickness, selective attention, P3a, oddball paradigm, event-related potentials, attentional networks, APOE genotype, target detection accuracy
MeSH terms
Attention, Cerebral Cortex, Female, Heterozygote, Humans, Male, Middle Aged, Statistics as Topic, Tissue Distribution, Apolipoprotein E4

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