Evidence map›Paper›PMID 24818081›Full record

ArticleNeuroImage. Clinical2014

fMRI resting state networks and their association with cognitive fluctuations in dementia with Lewy bodies.

Luis R Peraza, Marcus Kaiser, Michael Firbank, Sara Graziadio, Laura Bonanni, Marco Onofrj, Sean J Colloby, Andrew Blamire, John O'Brien, John-Paul Taylor

Open access · goldAbstract read
In one paragraph

Article in NeuroImage. Clinical, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed, 3 pooled it
5.5field-weighted citation impact, top 4% 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

71 citing papers in PubMed, 3 syntheses or guidelines pooled it, 122 citations in OpenAlex.

  1. Pooled it
  2. (Dis-)Connected Dots in Dementia with Lewy Bodies-A Systematic Review of Connectivity Studies.Movement disorders : official journal of the Movement Disorder Society · 2023
    Pooled it
  3. Pooled it
  4. Trial
  5. Review
  6. Language network disruption in patients with Lewy body diseases.Journal of neural transmission (Vienna, Austria : 1996) · 2026
    Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. Review
  12. Altered network efficiency in isolated REM sleep behavior disorder: A multicentric study.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  13. Article
  14. Article
  15. The role ofFrontiers in neuroscience · 2025
    Review
  16. Review
  17. Article
  18. Mild cognitive impairment in dementia with Lewy bodies: an update and outlook.Journal of neural transmission (Vienna, Austria : 1996) · 2023
    Review
  19. Review
  20. Article

11 more citing papers are in PubMed but not listed here.

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

10 authors at 5 institutions in 3 countries.

Luis R PerazaInstitute for Ageing and Health, Newcastle University, Campus for Ageing and Vitality, Newcastle upon Tyne NE4 5PL, UK.
Marcus KaiserSchool of Computing Science, Newcastle University, Newcastle upon Tyne NE4 5PL, UK ; Institute of Neuroscience, Newcastle University, Newcastle upon Tyne NE2 4HH, UK ; Department of Brain and Cognitive Sciences, Seoul National University, Seoul, Republic of Korea.
Michael FirbankInstitute for Ageing and Health, Newcastle University, Wolfson Research Centre, Campus for Ageing and Vitality, Newcastle upon Tyne NE4 5PL, UK.
Sara GraziadioInstitute for Ageing and Health, Newcastle University, Campus for Ageing and Vitality, Newcastle upon Tyne NE4 5PL, UK ; Institute of Neuroscience, Newcastle University, Newcastle upon Tyne NE2 4HH, UK.
Laura BonanniDepartment of Neuroscience and Imaging, "G. d'Annunzio" University, Chieti, Italy ; Aging Research Centre, Ce. S.I., "G. d'Annunzio" University Foundation, Chieti, Italy.
Marco OnofrjDepartment of Neuroscience and Imaging, "G. d'Annunzio" University, Chieti, Italy ; Aging Research Centre, Ce. S.I., "G. d'Annunzio" University Foundation, Chieti, Italy.
Sean J CollobyInstitute for Ageing and Health, Newcastle University, Campus for Ageing and Vitality, Newcastle upon Tyne NE4 5PL, UK.
Andrew BlamireNewcastle Magnetic Resonance Centre, Campus for Ageing and Vitality, Newcastle upon Tyne NE4 5PL, UK.
John O'BrienDepartment of Psychiatry, University of Cambridge, Addenbrooke's Hospital, Cambridge CB2 0QC, UK.
John-Paul TaylorInstitute for Ageing and Health, Newcastle University, Wolfson Research Centre, Campus for Ageing and Vitality, Newcastle upon Tyne NE4 5PL, UK.
Newcastle University · GBUniversity of Chieti-Pescara · ITAddenbrooke's Hospital · GBNewcastle Hospitals - Campus for Ageing and Vitality · GBSeoul National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cognitive fluctuations are a core symptom in dementia with Lewy bodies (DLB) and may relate to pathological alterations in distributed brain networks. To test this we analysed resting state fMRI changes in a cohort of fluctuating DLB patients (n = 16) compared with age matched controls (n = 17) with the aim of finding functional connectivity (FC) differences between these two groups and whether these associate with cognitive fluctuations in DLB. Resting state networks (RSNs) were estimated using independent component analysis and FC between the RSN maps and the entirety of the brain was assessed using dual regression. The default mode network (DMN) appeared unaffected in DLB compared to controls but significant cluster differences between DLB and controls were found for the left fronto-parietal, temporal, and sensory-motor networks. Desynchronization of a number of cortical and subcortical areas related to the left fronto-parietal network was associated with the severity and frequency of cognitive fluctuations. Our findings provide empirical evidence for the potential role of attention-executive networks in the aetiology of this core symptom in DLB.

Indexed as

CognitionAgedBrain MappingCerebral CortexCognition DisordersFemaleHumansLewy Body DiseaseMagnetic Resonance ImagingMaleNerve NetNeuronal PlasticityReproducibility of ResultsRestSensitivity and SpecificityCognitive fluctuationsDementiaLewy bodiesResting state networkVisual hallucinations

Identifiers

PMID24818081
PMCPMC3984441
OpenAlexW2021784310

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.