Evidence map›Paper›PMID 34002926›Full record

ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association2022

Social network characteristics moderate associations between cortical thickness and cognitive functioning in older adults.

Neika Sharifian, Afsara B Zaheed, Emily P Morris, Ketlyne Sol, Jennifer J Manly, Nicole Schupf, Richard Mayeux, Adam M Brickman, Laura B Zahodne

Open access · bronzeAbstract read
In one paragraph

Article in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.3field-weighted citation impact, top 22% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 19 citations in OpenAlex.

  1. The Association Between Social Isolation, Functional Social Support, and Memory: A Mediation Analysis of the Canadian Longitudinal Study on Aging.Journal of applied gerontology : the official journal of the Southern Gerontological Society · 2026
    Article
  2. Observational
  3. Brain and cognitive correlates of social status across race/ethnicity and sex/gender.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  4. Article
  5. Article
  6. Marital status, brain health, and cognitive reserve among diverse older adults.Journal of the International Neuropsychological Society : JINS · 2025
    Article
  7. Loneliness, cerebrovascular and Alzheimer's disease pathology, and cognition.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article
  8. Higher Number of Children Is Associated With Increased Risk of Generalization Deficits in Older African American Women.The journals of gerontology. Series B, Psychological sciences and social sciences · 2024
    Article
  9. Article
  10. Article
  11. Investigating Biological Pathways Underpinning the Longitudinal Association Between Loneliness and Cognitive Impairment.The journals of gerontology. Series A, Biological sciences and medical sciences · 2023
    Article
  12. Article
  13. Psychosocial Protective Factors in Cognitive Aging: A Targeted Review.Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists · 2021
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Neika SharifianDepartment of Psychology, University of Michigan, Ann Arbor, Michigan, USA.ORCID 0000-0003-3985-8963
Afsara B ZaheedDepartment of Psychology, University of Michigan, Ann Arbor, Michigan, USA.
Emily P MorrisDepartment of Psychology, University of Michigan, Ann Arbor, Michigan, USA.
Ketlyne SolDepartment of Psychology, University of Michigan, Ann Arbor, Michigan, USA.
Jennifer J ManlyDepartment of Neurology, Gertrude H. Sergievsky Center and Taub Institute for Research on Alzheimer's Disease and the Aging Brain, College of Physicians & Surgeons, Columbia University, New York, New York, USA.
Nicole SchupfDepartment of Neurology, Gertrude H. Sergievsky Center and Taub Institute for Research on Alzheimer's Disease and the Aging Brain, College of Physicians & Surgeons, Columbia University, New York, New York, USA.
Richard MayeuxDepartment of Neurology, Gertrude H. Sergievsky Center and Taub Institute for Research on Alzheimer's Disease and the Aging Brain, College of Physicians & Surgeons, Columbia University, New York, New York, USA.
Adam M BrickmanDepartment of Neurology, Gertrude H. Sergievsky Center and Taub Institute for Research on Alzheimer's Disease and the Aging Brain, College of Physicians & Surgeons, Columbia University, New York, New York, USA.
Laura B ZahodneDepartment of Psychology, University of Michigan, Ann Arbor, Michigan, USA.
University of Michigan · USColumbia University · US

Funding

Clinical and Translational Science AwardUL1TR001873 · NCATS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI REILLY, MUREDACH P · 2016 to 2025
$99.0M
Research Education CoreP30AG066462 · NIA · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI Christiane Reitz · 2020 to 2026
$30.1M
VASCULAR FACTORS AND MILD COGNITIVE IMPAIRMENT AND ALZHEIMER'S DISEASEP01AG007232 · NIA · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI MAYEUX, RICHARD P · 1989 to 2008
$21.7M
Epidemiological and Genetic Investigations of Blood-Based Biomarkers for Alzheimer's Disease in the Multiethnic, Washington Heights, Inwood, Columbia Aging Project (WHICAP)R01AG072474 · NIA · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI BRICKMAN, ADAM M, MANLY, JENNIFER JAIE · 2021 to 2025
$13.3M
Epidemiological Integration of Genetic Variants and Metabolomics Profiles in Washington Heights Columbia Aging ProjectRF1AG066107 · NIA · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI MAYEUX, RICHARD P, MILLER, GARY W · 2020 to 2022
$11.4M
Epidemiology of Biomarkers of Risk and Progression in LOADR01AG037212 · NIA · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI MAYEUX, RICHARD P, SCHUPF, NICOLE · 2010 to 2015
$10.1M
Genetic Epidemiology of Cerebrovascular Factors in Alzheimer's DiseaseRF1AG054023 · NIA · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI MAYEUX, RICHARD P · 2016 to 2018
$8.9M
Resilience Mechanisms Underlying Racial/Ethnic Disparities in Alzheimer’s DiseaseR01AG054520 · NIA · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI BRICKMAN, ADAM M, ZAHODNE, LAURA B · 2017 to 2021
$5.8M
Psychosocial Protective Factors in Cognitive and Brain AgingR00AG047963 · NIA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI ZAHODNE, LAURA B · 2016 to 2018
$746k
NCATS NIH HHS UL1 TR001873NIA NIH HHS P01 AG007232NIA NIH HHS P30 AG066462NIA NIH HHS R00 AG047963NIA NIH HHS R01 AG037212NIA NIH HHS R01 AG054520NIA NIH HHS R01 AG072474NIA NIH HHS RF1 AG054023NIA NIH HHS RF1 AG066107
6 · The paper itself

Abstract

introductionPrior research suggests that the strength of association between Alzheimer's disease (AD) pathology and lower cognitive performance is influenced by modifiable psychosocial factors, such as social network size. However, little is known about distinct social relationship types.

methodsThe current cross-sectional study used data from the Washington Heights-Inwood Columbia Aging Project to examine whether social network characteristics (i.e., total size, spouse/partner, number of children, other relatives, friends) moderate associations between cortical thickness in regions implicated in AD and cognitive performance.

resultsLower cortical thickness was associated with worse global cognition among individuals with smaller friend networks, but not among individuals with larger friend networks. This pattern of results was most prominent for language and speed/executive functioning. DISCUSSION: Longitudinal and intervention studies are needed to determine whether these cross-sectional findings reflect a protective effect of later-life friendships for maintaining cognitive performance in the context of poorer brain health.

Indexed as

CognitionExecutive FunctionAgedAgingChildCross-Sectional StudiesHumansLongitudinal StudiesSocial Networkingcognitive agingcognitive reservepsychosocialsocial relations

Identifiers

PMID34002926
PMCPMC8599522
OpenAlexW3162366267

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.