Evidence map›Paper›PMID 33980852›Full record

ArticleNature communications2021

Bidirectional propagation of low frequency oscillations over the human hippocampal surface.

Jonathan K Kleen, Jason E Chung, Kristin K Sellers, Jenny Zhou, Michael Triplett, Kye Lee, Angela Tooker, Razi Haque, Edward F Chang

Abstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing 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

20 citing papers in PubMed.

  1. Article
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  9. Review
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  11. Article
  12. Review
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  14. Article
  15. How our understanding of memory replay evolves.Journal of neurophysiology · 2023
    Review
  16. Article
  17. Retrosplenial and Hippocampal Synchrony during Retrieval of Old Memories in Macaques.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
    Article
  18. Article
  19. Article
  20. 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

9 authors.

Jonathan K KleenDepartment of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA, USA.ORCID http://orcid.org/0000-0003-2622-3205
Jason E ChungDepartment of Neurological Surgery, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA, USA.
Kristin K SellersDepartment of Neurological Surgery, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA, USA.ORCID http://orcid.org/0000-0002-0517-2296
Jenny ZhouLawrence Livermore National Laboratories, Livermore, CA, USA.ORCID http://orcid.org/0000-0002-4282-2980
Michael TriplettLawrence Livermore National Laboratories, Livermore, CA, USA.ORCID http://orcid.org/0000-0002-8561-3206
Kye LeeLawrence Livermore National Laboratories, Livermore, CA, USA.
Angela TookerLawrence Livermore National Laboratories, Livermore, CA, USA.
Razi HaqueLawrence Livermore National Laboratories, Livermore, CA, USA.ORCID http://orcid.org/0000-0003-0453-0300
Edward F ChangDepartment of Neurological Surgery, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA, USA. Edward.Chang@ucsf.edu.ORCID http://orcid.org/0000-0003-2480-4700

Funding

Functional organization of the superior temporal gyrus for speech perceptionR01DC012379 · NIDCD · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI Edward Chang · 2012 to 2026
$8.3M
NINDS Research Education Programs for Residents and Fellows in Neurology, Neurosurgery, Neuropathology, Neuroradiology and Emergency Medicine (R25)R25NS070680 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI JOSEPHSON, SCOTT ANDREW · 2010 to 2023
$6.8M
Hippocampal-cortical networks underlying memory retrieval of linguistic knowledgeK23NS110920 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI KLEEN, JONATHAN · 2019 to 2023
$1.0M
Neocortical Mechanisms of Categorical Speech PerceptionR00NS065120 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI CHANG, EDWARD · 2010 to 2012
$729k
NIDCD NIH HHS R01 DC012379NINDS NIH HHS K23 NS110920NINDS NIH HHS R00 NS065120NINDS NIH HHS R25 NS070680
6 · The paper itself

Abstract

The hippocampus is diversely interconnected with other brain systems along its axis. Cycles of theta-frequency activity are believed to propagate from the septal to temporal pole, yet it is unclear how this one-way route supports the flexible cognitive capacities of this structure. We leveraged novel thin-film microgrid arrays conformed to the human hippocampal surface to track neural activity two-dimensionally in vivo. All oscillation frequencies identified between 1-15 Hz propagated across the tissue. Moreover, they dynamically shifted between two roughly opposite directions oblique to the long axis. This predominant propagation axis was mirrored across participants, hemispheres, and consciousness states. Directionality was modulated in a participant who performed a behavioral task, and it could be predicted by wave amplitude topography over the hippocampal surface. Our results show that propagation directions may thus represent distinct meso-scale network computations, operating along versatile spatiotemporal processing routes across the hippocampal body.

Indexed as

BehaviorElectrocorticographyHippocampusHumansModels, NeurologicalSeptum of BrainTemporal LobeTheta Rhythm

Identifiers

PMID33980852
PMCPMC8115072

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.