Evidence map›Paper›PMID 34880133›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

The hippocampus as the switchboard between perception and memory.

Matthias S Treder, Ian Charest, Sebastian Michelmann, María Carmen Martín-Buro, Frédéric Roux, Fernando Carceller-Benito, Arturo Ugalde-Canitrot, David T Rollings, Vijay Sawlani, Ramesh Chelvarajah and 3 more

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
–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

36 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  5. Respiration Shapes the Neural Dynamics of Successful Remembering in Humans.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
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  17. Neural dynamics of shifting attention between perception and working-memory contents.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  18. [Analysis of nerve excitability in the dentate gyrus of the hippocampus in cerebral ischaemia-reperfusion mice].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2024
    Article
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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

13 authors.

Matthias S TrederSchool of Computer Science and Informatics, Cardiff University, Cardiff CF24 3AA, United Kingdom.
Ian CharestSchool of Psychology and Centre for Human Brain Health, University of Birmingham, Birmingham B15 2TT, United Kingdom.
Sebastian MichelmannPrinceton Neuroscience Institute, Princeton University, Princeton, NJ 08544.
María Carmen Martín-BuroLaboratory of Cognitive and Computational Neuroscience, Center for Biomedical Technology 28223 Madrid, Spain.ORCID 0000-0003-0578-2825
Frédéric RouxSchool of Psychology and Centre for Human Brain Health, University of Birmingham, Birmingham B15 2TT, United Kingdom.
Fernando Carceller-BenitoNeurosurgery Service, Hospital Universitario La Paz 28046 Madrid, Spain.
Arturo Ugalde-CanitrotEpilepsy Monitoring Unit, Neurology and Clinical Neurophysiology Service, Hospital Universitario La Paz 28046 Madrid, Spain.ORCID 0000-0003-4585-0271
David T RollingsSchool of Psychology and Centre for Human Brain Health, University of Birmingham, Birmingham B15 2TT, United Kingdom.
Vijay SawlaniSchool of Psychology and Centre for Human Brain Health, University of Birmingham, Birmingham B15 2TT, United Kingdom.
Ramesh ChelvarajahSchool of Psychology and Centre for Human Brain Health, University of Birmingham, Birmingham B15 2TT, United Kingdom.
Maria WimberInstitute of Neuroscience and Psychology, University of Glasgow, Glasgow G12 8QQ, United Kingdom.
Simon HanslmayrInstitute of Neuroscience and Psychology, University of Glasgow, Glasgow G12 8QQ, United Kingdom.ORCID 0000-0003-4448-2147
Bernhard P StaresinaSchool of Psychology and Centre for Human Brain Health, University of Birmingham, Birmingham B15 2TT, United Kingdom; bernhard.staresina@psy.ox.ac.uk.ORCID 0000-0002-0558-9745

Funding

Wellcome Trust
6 · The paper itself

Abstract

Adaptive memory recall requires a rapid and flexible switch from external perceptual reminders to internal mnemonic representations. However, owing to the limited temporal or spatial resolution of brain imaging modalities used in isolation, the hippocampal-cortical dynamics supporting this process remain unknown. We thus employed an object-scene cued recall paradigm across two studies, including intracranial electroencephalography (iEEG) and high-density scalp EEG. First, a sustained increase in hippocampal high gamma power (55 to 110 Hz) emerged 500 ms after cue onset and distinguished successful vs. unsuccessful recall. This increase in gamma power for successful recall was followed by a decrease in hippocampal alpha power (8 to 12 Hz). Intriguingly, the hippocampal gamma power increase marked the moment at which extrahippocampal activation patterns shifted from perceptual cue toward mnemonic target representations. In parallel, source-localized EEG alpha power revealed that the recall signal progresses from hippocampus to posterior parietal cortex and then to medial prefrontal cortex. Together, these results identify the hippocampus as the switchboard between perception and memory and elucidate the ensuing hippocampal-cortical dynamics supporting the recall process.

Indexed as

AdultBrain MappingCase-Control StudiesElectroencephalographyEpilepsyFemaleHippocampusHumansMaleMemoryMiddle AgedPrefrontal CortexVisual PerceptionYoung Adultgamma powerhippocampusintracranial EEGmemoryrecall

Identifiers

PMID34880133
PMCPMC8685930

What OpenQuestion holds

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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.