Evidence map›Paper›PMID 37337666›Full record

ArticleeLife2023

Impact of social isolation on grey matter structure and cognitive functions: A population-based longitudinal neuroimaging study.

Laurenz Lammer, Frauke Beyer, Melanie Luppa, Christian Sanders, Ronny Baber, Christoph Engel, Kerstin Wirkner, Markus Loffler, Steffi G Riedel-Heller, Arno Villringer and 1 more

Open access · goldAbstract read
In one paragraph

Article in eLife, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
11.3field-weighted citation impact, top 1% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

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  14. Foxq1 activates CB2R with oleamide to alleviate POCD.Brain pathology (Zurich, Switzerland) · 2025
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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

11 authors at 4 institutions in 2 countries.

Laurenz LammerDepartment of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.ORCID 0000-0001-5612-4924
Frauke BeyerDepartment of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.
Melanie LuppaInstitute of Social Medicine, Occupational Health and Public Health, University of Leipzig, Faculty of Medicine, Leipzig, Germany.
Christian SandersDepartment of Psychiatry and Psychotherapy, University of Leipzig Medical Centre, Leipzig, Germany.
Ronny BaberLeipzig Research Center for Civilization Diseases (LIFE), University of Leipzig, Leipzig, Germany.
Christoph EngelLeipzig Research Center for Civilization Diseases (LIFE), University of Leipzig, Leipzig, Germany.
Kerstin WirknerLeipzig Research Center for Civilization Diseases (LIFE), University of Leipzig, Leipzig, Germany.
Markus LofflerLeipzig Research Center for Civilization Diseases (LIFE), University of Leipzig, Leipzig, Germany.
Steffi G Riedel-HellerInstitute of Social Medicine, Occupational Health and Public Health, University of Leipzig, Faculty of Medicine, Leipzig, Germany.
Arno VillringerDepartment of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.
A Veronica WitteDepartment of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.ORCID 0000-0001-9054-6688
Life University · USMax Planck Institute for Human Cognitive and Brain Sciences · DELeipzig University · DEHumboldt-Universität zu Berlin · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Social isolation has been suggested to increase the risk to develop cognitive decline. However, our knowledge on causality and neurobiological underpinnings is still limited. Methods: In this preregistered analysis, we tested the impact of social isolation on central features of brain and cognitive ageing using a longitudinal population-based magnetic resonance imaging (MRI) study. We assayed 1992 cognitively healthy participants (50-82years old, 921women) at baseline and 1409 participants after~6y follow-up. Results: We found baseline social isolation and change in social isolation to be associated with smaller volumes of the hippocampus and clusters of reduced cortical thickness. Furthermore, poorer cognitive functions (memory, processing speed, executive functions) were linked to greater social isolation, too. Conclusions: Combining advanced neuroimaging outcomes with prevalent lifestyle characteristics from a well-characterized population of middle- to older aged adults, we provide evidence that social isolation contributes to human brain atrophy and cognitive decline. Within-subject effects of social isolation were similar to between-subject effects, indicating an opportunity to reduce dementia risk by promoting social networks. Funding: European Union, European Regional Development Fund, Free State of Saxony, LIFE-Leipzig Research Center for Civilization Diseases, University of Leipzig, German Research Foundation.

Indexed as

CognitionGray MatterAdultBrainHumansLongitudinal StudiesMagnetic Resonance ImagingMiddle AgedNeuroimagingNeuropsychological TestsSocial Isolationbayescognitive declinecortical thicknessepidemiologyglobal healthhippocampushumanneuroimagingneurosciencesocial isolation

Identifiers

PMID37337666
PMCPMC10281670
OpenAlexW4381309084

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.