Evidence map›Paper›PMID 34655218›Full record

ArticleThe journals of gerontology. Series B, Psychological sciences and social sciences2022

Social Networks and Cognitive Reserve: Network Structure Moderates the Association Between Amygdalar Volume and Cognitive Outcomes.

Brea L Perry, Adam R Roth, Siyun Peng, Shannon L Risacher, Andrew J Saykin, Liana G Apostolova

Abstract read
In one paragraph

Article in The journals of gerontology. Series B, Psychological sciences and social sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

26 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Selected social and lifestyle correlates of brain health markers: the Cross-Cohort Collaboration Consortium.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Pooled it
  3. Article
  4. The association between lifetime marital histories and later-life cognitive function: evidence from the United States and China.The journals of gerontology. Series B, Psychological sciences and social sciences · 2026
    Article
  5. Article
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  7. Social network structure and composition predicting cognitive impairment: racial/ethnic differences among older adults.The journals of gerontology. Series B, Psychological sciences and social sciences · 2026
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  13. Life Course Associations of Sibling Relationships and Cognitive Functioning in Late Adulthood.The journals of gerontology. Series B, Psychological sciences and social sciences · 2024
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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

6 authors.

Brea L PerryDepartment of Sociology, Indiana University, Bloomington, Indiana, USA.ORCID 0000-0001-7869-7168
Adam R RothDepartment of Sociology, Indiana University, Bloomington, Indiana, USA.ORCID 0000-0002-9294-5444
Siyun PengDepartment of Sociology, Indiana University, Bloomington, Indiana, USA.ORCID 0000-0002-4049-4485
Shannon L RisacherDepartment of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, Indiana, USA.ORCID 0000-0002-3304-7943
Andrew J SaykinDepartment of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, Indiana, USA.
Liana G ApostolovaIndiana Alzheimer Disease Research Center, Indiana University School of Medicine, Indianapolis, Indiana, USA.

Funding

Research Education ComponentP30AG010133 · NIA · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI SAYKIN, ANDREW J · 1991 to 2020
$37.3M
Quality Assurance and Quality Control Project Management: Improving Submissions and Study Conduct in the Human Subjects Research Prior Approval ProcessUL1TR002529 · NCATS · INDIANA UNIVERSITY INDIANAPOLIS · PI MOE, SHARON M, WIEHE, SARAH ELIZABETH · 2018 to 2022
$27.2M
Research Education ComponentP30AG072976 · NIA · INDIANA UNIVERSITY INDIANAPOLIS · PI ANDREW J SAYKIN · 2021 to 2026
$24.1M
Understanding how social connectedness protects older adults' cognitive health: the role of social cognitionR01AG070931 · NIA · TRUSTEES OF INDIANA UNIVERSITY · PI KRENDL, ANNE CATHERINE, PERRY, BREA LOUISE · 2020 to 2024
$3.6M
Leveraging Neuroimaging Biomarkers to Understand the Role of Social Networks in Alzheimer's DiseaseR01AG057739 · NIA · TRUSTEES OF INDIANA UNIVERSITY · PI APOSTOLOVA, LIANA G, PERRY, BREA LOUISE · 2018 to 2022
$3.5M
Social Networks in Alzheimer Disease 2.0.R37AG057739 · NIA · TRUSTEES OF INDIANA UNIVERSITY · PI PERRY, BREA LOUISE · 2024 to 2025
$1.5M
NCATS NIH HHS UL1 TR002529NIA NIH HHS P30 AG010133NIA NIH HHS P30 AG072976NIA NIH HHS R01 AG057739NIA NIH HHS R01 AG070931NIA NIH HHS R37 AG057739
6 · The paper itself

Abstract

objectivesThe cognitive reserve hypothesis has been proposed as a key mechanism explaining the link between social networks and cognitive function but has rarely been empirically tested using neuroimaging data. This study examines whether social network attributes moderate the association between amygdalar volume and cognitive function.

methodsData were from the Social Networks in Alzheimer Disease study (N = 154) and Indiana Alzheimer's Disease Research Center. Social networks were measured using the PhenX Social Network Battery. Regional data from magnetic resonance imaging (amygdalar volume [AV]) were analyzed using FreeSurfer software. Cognitive function was measured using the Montreal Cognitive Assessment (MoCA) and consensus diagnosis. Linear regression analyses were conducted to test the moderating role of social networks on the association between AV and cognitive function.

resultsParticipants with greater ability to span multiple social roles and subgroups within their networks scored higher on the MoCA after adjusting for sociodemographic variables, depression, frequency of contact, and AV. Social networks moderated the association between AV and cognitive function. DISCUSSION: Among participants who engaged in diverse and loosely connected social networks, the expected adverse cognitive effects of brain volume in regions implicated in socioemotional processing were attenuated. These findings suggest that cognitive stimulation achieved through social interaction with a diverse array of social relationships across multiple contexts may help promote cognitive reserve.

Indexed as

Alzheimer DiseaseCognitive DysfunctionCognitive ReserveBrainCognitionHumansMagnetic Resonance ImagingSocial NetworkingAlzheimer’s diseaseAmygdalaCognitive reserveSocial networks

Identifiers

PMID34655218
PMCPMC9371450

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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.