Evidence map›Paper›PMID 33694232›Full record

ArticleHuman brain mapping2021

Representation of visual numerosity information during working memory in humans: An fMRI decoding study.

Ian Morgan Leo Pennock, Timo Torsten Schmidt, Dilara Zorbek, Felix Blankenburg

Open access · goldAbstract read
In one paragraph

Article in Human brain mapping, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.9field-weighted citation impact, top 13% 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

9 citing papers in PubMed, 15 citations in OpenAlex.

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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

4 authors at 2 institutions in 2 countries.

Ian Morgan Leo PennockNeurocomputation and Neuroimaging Unit (NNU), Department of Education and Psychology, Freie Universität Berlin, Berlin, Germany.ORCID 0000-0002-4166-1126
Timo Torsten SchmidtNeurocomputation and Neuroimaging Unit (NNU), Department of Education and Psychology, Freie Universität Berlin, Berlin, Germany.ORCID 0000-0003-1612-1301
Dilara ZorbekNeurocomputation and Neuroimaging Unit (NNU), Department of Education and Psychology, Freie Universität Berlin, Berlin, Germany.ORCID 0000-0002-8270-4436
Felix BlankenburgNeurocomputation and Neuroimaging Unit (NNU), Department of Education and Psychology, Freie Universität Berlin, Berlin, Germany.
Freie Universität Berlin · DEOsnabrück University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Both animal and human studies on numerosity have shown the importance of the parietal cortex for numerosity processing. However, most studies have focused on the perceptual processing of numerosity. Still, it is unclear how and where numerosity information is coded when this information is retained during a working memory delay phase. Such temporal storage could be realized by the same structures as perceptual processes, or be transformed to a more abstract representation, potentially involving prefrontal regions. FMRI decoding studies allow the identification of brain areas that exhibit multi-voxel activation patterns specific to the content of working memory. Here, we used an assumption-free searchlight-decoding approach to test where numerosity-specific codes can be found during a 12 s retention period. Participants (n = 24) performed a retro-cue delayed match-to-sample task, in which numerosity information was presented as visual dot arrays. We found mnemonic numerosity-specific activation in the right lateral portion of the intraparietal sulcus; an area well-known for perceptual processing of numerosity. The applied retro-cue design dissociated working memory delay activity from perceptual processes and showed that the intraparietal sulcus also maintained working memory representation independent of perception.

Indexed as

Brain MappingMathematical ConceptsAdultFemaleHumansMagnetic Resonance ImagingMaleMemory, Short-TermParietal LobePattern Recognition, VisualYoung AdultdecodingfMRIMVPAnumerosityshort-term memoryvisionworking memory

Identifiers

PMID33694232
PMCPMC8127141
OpenAlexW3135427297

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.