Evidence map›Paper›PMID 34592172›Full record

ArticleCurrent biology : CB2021

The hippocampus constructs narrative memories across distant events.

Brendan I Cohn-Sheehy, Angelique I Delarazan, Zachariah M Reagh, Jordan E Crivelli-Decker, Kamin Kim, Alexander J Barnett, Jeffrey M Zacks, Charan Ranganath

Open access · greenAbstract read
In one paragraph

Article in Current biology : CB, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
9.9field-weighted citation impact, top 1% of its field
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

55 citing papers in PubMed, 109 citations in OpenAlex.

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  6. The hippocampus rapidly integrates sequence representations during novel multistep predictions.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2026
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  7. Narrative coherence warps the timeline of recalled naturalistic events.Journal of experimental psychology. Learning, memory, and cognition · 2026
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  10. Hippocampal-Cortical Networks Predict Conceptual versus Perceptually Guided Narrative Memory.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
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  16. Reduced temporal organization of narrative recall in adults with moderate-severe traumatic brain injury.Cortex; a journal devoted to the study of the nervous system and behavior · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

Brendan I Cohn-SheehyM.D./Ph.D. Program, University of California, Davis, Sacramento, CA, USA; Neuroscience Graduate Group, University of California, Davis, Davis, CA, USA; Center for Neuroscience, University of California, Davis, Davis, CA, USA. Electronic address: bcohnsheehy@ucdavis.edu.
Angelique I DelarazanDepartment of Psychological and Brain Sciences, Washington University, 1 Brookings Drive, St. Louis, MO, USA.
Zachariah M ReaghDepartment of Psychological and Brain Sciences, Washington University, 1 Brookings Drive, St. Louis, MO, USA.
Jordan E Crivelli-DeckerCenter for Neuroscience, University of California, Davis, Davis, CA, USA; Department of Psychology, University of California, Davis, Davis, CA, USA.
Kamin KimCenter for Neuroscience, University of California, Davis, Davis, CA, USA.
Alexander J BarnettCenter for Neuroscience, University of California, Davis, Davis, CA, USA.
Jeffrey M ZacksDepartment of Psychological and Brain Sciences, Washington University, 1 Brookings Drive, St. Louis, MO, USA.
Charan RanganathNeuroscience Graduate Group, University of California, Davis, Davis, CA, USA; Center for Neuroscience, University of California, Davis, Davis, CA, USA; Department of Psychology, University of California, Davis, Davis, CA, USA.
University of California, Davis · USWashington University in St. Louis · US

Funding

Learning, Memory, and Plasticity (LaMP) Training ProgramT32MH112507 · NIMH · UNIVERSITY OF CALIFORNIA AT DAVIS · PI Karen Zito · 2017 to 2026
$2.4M
Using lifelike narratives to probe age-related differences in cortico-hippocampal functionality and episodic memoryF30AG062053 · NIA · UNIVERSITY OF CALIFORNIA AT DAVIS · PI COHN-SHEEHY, BRENDAN · 2019 to 2022
$178k
NIA NIH HHS F30 AG062053NIMH NIH HHS T32 MH112507
6 · The paper itself

Abstract

Life's events are scattered throughout time, yet we often recall different events in the context of an integrated narrative. Prior research suggests that the hippocampus, which supports memory for past events, can support the integration of overlapping associations or separate events in memory. However, the conditions that lead to hippocampus-dependent memory integration are unclear. We used functional brain imaging to test whether the opportunity to form a larger narrative (narrative coherence) drives hippocampal memory integration. During encoding of fictional stories, patterns of hippocampal activity, including activity at boundaries between events, were more similar between distant events that formed one coherent narrative, compared with overlapping events taken from unrelated narratives. One day later, the hippocampus preferentially supported detailed recall of coherent narrative events, through reinstatement of hippocampal activity patterns from encoding. These findings demonstrate a key function of the hippocampus: the integration of events into a narrative structure for memory.

Indexed as

Memory, EpisodicBrain MappingHippocampusMagnetic Resonance ImagingMental Recallepisodic memoryevent cognitionfMRIhippocampusnarrativesnaturalistic stimulipattern similarity

Identifiers

PMID34592172
PMCPMC9373723
OpenAlexW3203055488

What OpenQuestion holds

Textmetadata
LicenceTDM
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.