Evidence map›Paper›PMID 37160345›Full record

ArticleCerebral cortex (New York, N.Y. : 1991)2023

Hippocampal theta activity during encoding promotes subsequent associative memory in humans.

Bárður H Joensen, Daniel Bush, Umesh Vivekananda, Aidan J Horner, James A Bisby, Beate Diehl, Anna Miserocchi, Andrew W McEvoy, Matthew C Walker, Neil Burgess

Abstract read
In one paragraph

Article in Cerebral cortex (New York, N.Y. : 1991), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. High-caloric intake rescues early symptomatic AD-induced hippocampal neurovascular coupling deficits.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  5. Article
  6. Article
  7. Neocortical and Hippocampal Theta Oscillations Track Audiovisual Integration and Replay of Speech Memories.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  8. Review
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.

Bárður H JoensenUCL Queen Square Institute of Neurology, UCL, London WC1N 3BG, United Kingdom.
Daniel BushDepartment of Neuroscience, Physiology and Pharmacology, UCL, London, WC1E 6BT, United Kingdom.
Umesh VivekanandaUCL Queen Square Institute of Neurology, UCL, London WC1N 3BG, United Kingdom.
Aidan J HornerDepartment of Psychology, University of York, York, YO10 5DD, United Kingdom.
James A BisbyUCL Queen Square Institute of Neurology, UCL, London WC1N 3BG, United Kingdom.
Beate DiehlUCL Queen Square Institute of Neurology, UCL, London WC1N 3BG, United Kingdom.
Anna MiserocchiUCL Queen Square Institute of Neurology, UCL, London WC1N 3BG, United Kingdom.
Andrew W McEvoyUCL Queen Square Institute of Neurology, UCL, London WC1N 3BG, United Kingdom.
Matthew C WalkerUCL Queen Square Institute of Neurology, UCL, London WC1N 3BG, United Kingdom.
Neil BurgessUCL Queen Square Institute of Neurology, UCL, London WC1N 3BG, United Kingdom.

Funding

Medical Research Council MR/T033150/1MRF_ MRF-001-0016-RG-VIVE-C0934Wellcome Trust
6 · The paper itself

Abstract

Hippocampal theta oscillations have been implicated in associative memory in humans. However, findings from electrophysiological studies using scalp electroencephalography or magnetoencephalography, and those using intracranial electroencephalography are mixed. Here we asked 10 pre-surgical epilepsy patients undergoing intracranial electroencephalography recording, along with 21 participants undergoing magnetoencephalography recordings, to perform an associative memory task, and examined whether hippocampal theta activity during encoding was predictive of subsequent associative memory performance. Across the intracranial electroencephalography and magnetoencephalography studies, we observed that theta power in the hippocampus increased during encoding, and that this increase differed as a function of subsequent memory, with greater theta activity for pairs that were successfully retrieved in their entirety compared with those that were not remembered. This helps to clarify the role of theta oscillations in associative memory formation in humans, and further, demonstrates that findings in epilepsy patients undergoing intracranial electroencephalography recordings can be extended to healthy participants undergoing magnetoencephalography recordings.

Indexed as

EpilepsyTheta RhythmElectroencephalographyHippocampusHumansMental Recallassociative memoryhippocampusintracranial EEGMEGtheta oscillations

Identifiers

PMID37160345
PMCPMC10321091

What OpenQuestion holds

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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.