Evidence map›Paper›PMID 32180307›Full record

ArticleHuman brain mapping2020

Spatiotemporal and spectral dynamics of multi-item working memory as revealed by the n-back task using MEG.

Lars Costers, Jeroen Van Schependom, Jorne Laton, Johan Baijot, Martin Sjøgård, Vincent Wens, Xavier De Tiège, Serge Goldman, Miguel D'Haeseleer, Marie Beatrice D'hooghe and 2 more

Abstract read
In one paragraph

Article in Human brain mapping, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
–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

29 citing papers in PubMed.

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  15. Advances in Neurodegenerative Diseases.Journal of clinical medicine · 2023
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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

12 authors.

Lars CostersCenter For Neurosciences, Vrije Universiteit Brussel, Brussels, Belgium.ORCID 0000-0003-2668-8061
Jeroen Van SchependomCenter For Neurosciences, Vrije Universiteit Brussel, Brussels, Belgium.ORCID 0000-0003-1200-5872
Jorne LatonCenter For Neurosciences, Vrije Universiteit Brussel, Brussels, Belgium.ORCID 0000-0003-4215-6524
Johan BaijotCenter For Neurosciences, Vrije Universiteit Brussel, Brussels, Belgium.ORCID 0000-0003-1108-7845
Martin SjøgårdLaboratoire de Cartographie Fonctionnelle du Cerveau (LCFC), Université Libre de Bruxelles, Brussels, Belgium.ORCID 0000-0002-7768-9454
Vincent WensLaboratoire de Cartographie Fonctionnelle du Cerveau (LCFC), Université Libre de Bruxelles, Brussels, Belgium.
Xavier De TiègeLaboratoire de Cartographie Fonctionnelle du Cerveau (LCFC), Université Libre de Bruxelles, Brussels, Belgium.ORCID 0000-0003-0127-089X
Serge GoldmanLaboratoire de Cartographie Fonctionnelle du Cerveau (LCFC), Université Libre de Bruxelles, Brussels, Belgium.ORCID 0000-0002-9917-8735
Miguel D'HaeseleerCenter For Neurosciences, Vrije Universiteit Brussel, Brussels, Belgium.
Marie Beatrice D'hoogheCenter For Neurosciences, Vrije Universiteit Brussel, Brussels, Belgium.ORCID 0000-0002-0917-4176
Mark WoolrichOxford Centre for Human Brain Activity (OHBA), University of Oxford, Oxford, UK.
Guy NagelsCenter For Neurosciences, Vrije Universiteit Brussel, Brussels, Belgium.ORCID 0000-0002-2597-0383

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Multi-item working memory (WM) is a complex cognitive function thought to arise from specific frequency band oscillations and their interactions. While some theories and consistent findings have been established, there is still a lot of unclarity about the sources, temporal dynamics, and roles of event-related fields (ERFs) and theta, alpha, and beta oscillations during WM activity. In this study, we performed an extensive whole-brain ERF and time-frequency analysis on n-back magnetoencephalography data from 38 healthy controls. We identified the previously unknown sources of the n-back M300, the right inferior temporal and parahippocampal gyrus and left inferior temporal gyrus, and frontal theta power increase, the orbitofrontal cortex. We shed new light on the role of the precuneus during n-back activity, based on an early ERF and theta power increase, and suggest it to be a crucial link between lower-level and higher-level information processing. In addition, we provide strong evidence for the central role of the hippocampus in multi-item WM behavior through the dynamics of theta and alpha oscillatory changes. Almost simultaneous alpha power decreases observed in the hippocampus and occipital fusiform gyri, regions known to be involved in letter processing, suggest that these regions together enable letter recognition, encoding and storage in WM. In summary, this study offers an extensive investigation into the spatial, temporal, and spectral characteristics of n-back multi-item WM activity.

Indexed as

Spatio-Temporal AnalysisAdolescentAdultAgedBrain WavesCerebral CortexHumansMagnetoencephalographyMemory, Short-TermMiddle AgedPsychomotor PerformanceYoung Adulthippocampusmagnetoencephalographyn-backprecuneusworking memory

Identifiers

PMID32180307
PMCPMC7267970

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Registered trials

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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.