Evidence map›Paper›PMID 34819340›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2022

Anterior-Posterior Hippocampal Dynamics Support Working Memory Processing.

Jin Li, Dan Cao, Vasileios Dimakopoulos, Weiyang Shi, Shan Yu, Lingzhong Fan, Lennart Stieglitz, Lukas Imbach, Johannes Sarnthein, Tianzi Jiang

Abstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

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

  1. Pooled it
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  3. Review
  4. Review
  5. Identifying causal neural oscillations underlying working memory.Cerebral cortex (New York, N.Y. : 1991) · 2025
    Article
  6. Article
  7. Article
  8. Spatiotemporal Neural Network for Sublexical Information Processing: An Intracranial SEEG Study.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
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  9. Article
  10. Article
  11. Article
  12. Article
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  15. Theta-Alpha Connectivity in the Hippocampal-Entorhinal Circuit Predicts Working Memory Load.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  16. 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

10 authors.

Jin LiBrainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.ORCID 0000-0002-4413-5746
Dan CaoBrainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
Vasileios DimakopoulosDepartment of Neurosurgery, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland.
Weiyang ShiBrainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
Shan YuBrainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
Lingzhong FanBrainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
Lennart StieglitzDepartment of Neurosurgery, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland.
Lukas ImbachSwiss Epilepsy Center, 8008 Zurich, Switzerland.
Johannes SarntheinDepartment of Neurosurgery, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland jiangtz@nlpr.ia.ac.cn johannes.sarnthein@usz.ch.ORCID 0000-0001-9141-381X
Tianzi JiangBrainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, People's Republic of China jiangtz@nlpr.ia.ac.cn johannes.sarnthein@usz.ch.ORCID 0000-0001-9531-291X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The hippocampus is a locus of working memory (WM) with anterior and posterior subregions that differ in their transcriptional and external connectivity patterns. However, the involvement and functional connections between these subregions in WM processing are poorly understood. To address these issues, we recorded intracranial EEG from the anterior and the posterior hippocampi in humans (seven females and seven males) who maintained a set of letters in their WM. We found that WM maintenance was accompanied by elevated low-frequency activity in both the anterior and posterior hippocampus and by increased theta/alpha band (3-12 Hz) phase synchronization between anterior and posterior subregions. Cross-frequency and Granger prediction analyses consistently showed that the correct WM trials were associated with theta/alpha band-coordinated unidirectional influence from the posterior to the anterior hippocampus. In contrast, WM errors were associated with bidirectional interactions between the anterior and posterior hippocampus. These findings imply that theta/alpha band synchrony within the hippocampus may support successful WM via a posterior to anterior influence. A combination of intracranial recording and a fine-grained atlas may be of value in understanding the neural mechanisms of WM processing.

Indexed as

AdolescentAdultAlpha RhythmElectrocorticographyFemaleHippocampusHumansMaleMemory, Short-TermMiddle AgedTheta RhythmYoung Adulthippocampusintracranial EEGlongitudinal axisworking memory

Identifiers

PMID34819340
PMCPMC8802917

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.