Evidence map›Paper›PMID 34400752›Full record

ArticleCommunications biology2021

The functional brain favours segregated modular connectivity at old age unless affected by neurodegeneration.

Xue Chen, Joe Necus, Luis R Peraza, Ramtin Mehraram, Yanjiang Wang, John T O'Brien, Andrew Blamire, Marcus Kaiser, John-Paul Taylor

Open access · goldAbstract read
In one paragraph

Article in Communications biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

14 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Association of Bidirectional Network Cores in the Brain with Perceptual Awareness and Cognition.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Brain signaling becomes less integrated and more segregated with age.bioRxiv : the preprint server for biology · 2024
    Article
  9. Brain signaling becomes less integrated and more segregated with age.Network neuroscience (Cambridge, Mass.) · 2024
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
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 7 institutions in 3 countries.

Xue Chen *College of Control Science and Engineering, China University of Petroleum (East China), Qingdao, China. wmtmdlove@163.com.ORCID 0000-0003-4062-9009
Joe Necus *Interdisciplinary Computing and Complex BioSystems (ICOS) research group, School of Computing, Newcastle University, Newcastle upon Tyne, United Kingdom. Joseph.necus@nottingham.ac.uk.ORCID 0000-0003-0832-3130
Luis R Peraza *Translational and Clinical Research Institute, Newcastle University, Campus for Ageing and Vitality, Newcastle upon Tyne, United Kingdom.ORCID 0000-0002-3419-0792
Ramtin Mehraram *Interdisciplinary Computing and Complex BioSystems (ICOS) research group, School of Computing, Newcastle University, Newcastle upon Tyne, United Kingdom.
Yanjiang WangCollege of Control Science and Engineering, China University of Petroleum (East China), Qingdao, China.
John T O'BrienDepartment of Psychiatry, University of Cambridge School of Medicine, Cambridge, United Kingdom.ORCID 0000-0002-0837-5080
Andrew BlamireTranslational and Clinical Research Institute, Newcastle University, Campus for Ageing and Vitality, Newcastle upon Tyne, United Kingdom.ORCID 0000-0002-8749-1257
Marcus KaiserInterdisciplinary Computing and Complex BioSystems (ICOS) research group, School of Computing, Newcastle University, Newcastle upon Tyne, United Kingdom.
John-Paul TaylorTranslational and Clinical Research Institute, Newcastle University, Campus for Ageing and Vitality, Newcastle upon Tyne, United Kingdom.
China University of Petroleum, East China · CNNewcastle Hospitals - Campus for Ageing and Vitality · GBIxico (United Kingdom) · GBNIHR Newcastle Biomedical Research Centre · GBNottingham Biomedical Research Centre · GBUniversity of Cambridge · GBUniversity of Nottingham · GB

Funding

Department of HealthMedical Research Council MR/T004347/1Medical Research Council MR/T004347/2Wellcome TrustWellcome Trust WT088441MA
6 · The paper itself

Abstract

Brain's modular connectivity gives this organ resilience and adaptability. The ageing process alters the organised modularity of the brain and these changes are further accentuated by neurodegeneration, leading to disorganisation. To understand this further, we analysed modular variability-heterogeneity of modules-and modular dissociation-detachment from segregated connectivity-in two ageing cohorts and a mixed cohort of neurodegenerative diseases. Our results revealed that the brain follows a universal pattern of high modular variability in metacognitive brain regions: the association cortices. The brain in ageing moves towards a segregated modular structure despite presenting with increased modular heterogeneity-modules in older adults are not only segregated, but their shape and size are more variable than in young adults. In the presence of neurodegeneration, the brain maintains its segregated connectivity globally but not locally, and this is particularly visible in dementia with Lewy bodies and Parkinson's disease dementia; overall, the modular brain shows patterns of differentiated pathology.

Indexed as

AgedAged, 80 and overBrainCohort StudiesEnglandFemaleHumansLewy Body DiseaseMaleMiddle AgedParkinson Disease

Identifiers

PMID34400752
PMCPMC8367990
OpenAlexW3194865429

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.