Evidence map›Paper›PMID 39878229›Full record

ArticleHuman brain mapping2025

Pattern Separation and Pattern Completion Within the Hippocampal Circuit During Naturalistic Stimuli.

Lili Sun, Siyang Li, Peng Ren, Qiuyi Liu, Zhipeng Li, Xia Liang

Abstract read
In one paragraph

Article in Human brain mapping, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. 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

6 authors.

Lili SunSchool of Life Science and Technology, HIT Faculty of Life Science and Medicine, Harbin Institute of Technology, Harbin, China.ORCID 0009-0001-5624-2952
Siyang LiZhejiang Lab, Hangzhou, Zhejiang, China.ORCID 0000-0002-3730-2171
Peng RenInstitute of Science and Technology for Brain-Inspired Intelligence and Department of Neurology, Huashan Hospital, Fudan University, Shanghai, China.
Qiuyi LiuSchool of Life Science and Technology, HIT Faculty of Life Science and Medicine, Harbin Institute of Technology, Harbin, China.
Zhipeng LiSchool of Life Science and Technology, HIT Faculty of Life Science and Medicine, Harbin Institute of Technology, Harbin, China.
Xia LiangResearch Center for Social Computing and Information Retrieval, Harbin Institute of Technology, Harbin, China.

Funding

Fundamental Research Funds for the Central Universities HIT.OCEF.2023015National Natural Science Foundation of China 81671769National Natural Science Foundation of China 82072000Natural Science Foundation of Heilongjiang Province YQ2023H016
6 · The paper itself

Abstract

Pattern separation and pattern completion in the hippocampus play a critical role in episodic learning and memory. However, there is limited empirical evidence supporting the role of the hippocampal circuit in these processes during complex continuous experiences. In this study, we analyzed high-resolution fMRI data from the "Forrest Gump" open-access dataset (16 participants) using a sliding-window temporal autocorrelation approach to investigate whether the canonical hippocampal circuit (DG-CA3-CA1-SUB) shows evidence consistent with the occurrence of pattern separation or pattern completion during a naturalistic audio movie task. Our results revealed that when processing continuous naturalistic stimuli, the DG-CA3 pair exhibited evidence consistent with the occurrence of the pattern separation process, whereas both the CA3-CA1 and CA1-SUB pairs showed evidence consistent with pattern completion. Moreover, during the latter half of the audio movie, we observed evidence consistent with a reduction in pattern completion in the CA3-CA1 pair and an increase in pattern completion in the CA1-SUB pair. Overall, these findings improve our understanding of the evidence related to the occurrence of pattern separation and pattern completion processes during natural experiences.

Indexed as

Auditory PerceptionCA1 Region, HippocampalCA3 Region, HippocampalHippocampusNerve NetAdultBrain MappingFemaleHumansMagnetic Resonance ImagingMaleYoung AdultfMRIhippocampal subfieldsnaturalistic stimulipattern completionpattern separation

Identifiers

PMID39878229
PMCPMC11775762

What OpenQuestion holds

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LicenceCC BY-NC
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.