Evidence map›Paper›PMID 29348512›Full record

ArticleNature communications2018

CA1 and CA3 differentially support spontaneous retrieval of episodic contexts within human hippocampal subfields.

Halle R Dimsdale-Zucker, Maureen Ritchey, Arne D Ekstrom, Andrew P Yonelinas, Charan Ranganath

Registry-linked trialAbstract read
In one paragraph

Article in Nature communications, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05910762 (Learning Novel Structure Across Time and Sleep), which is not on this map. Cited by 111 papers.

0numbers the graph read from it
0cells of the map it votes in
111citing 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.

NCT05910762 nacompletednot on this mapstarted 2023, after this paper: background citation

Learning Novel Structure Across Time and Sleep

TypeinterventionalSponsorUniversity of PennsylvaniaRan2023 to 2026Enrolled119ConditionsLearning, Humans, Consolidation, SleepArmsAssociative inference, Category learning, Sleep
3 · Its place in the literature

Who cites it

111 citing papers in PubMed.

  1. Trial
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  5. 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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  10. Neural Patterns Reflect Shared Emotional History.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
    Article
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  19. A compressed code for memory discrimination.bioRxiv : the preprint server for biology · 2025
    Article
  20. Article

51 more citing papers are in PubMed but not listed here.

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

5 authors.

Halle R Dimsdale-ZuckerCenter for Neuroscience, University of California, Davis, CA, 95618, USA. hrzucker@ucdavis.edu.ORCID http://orcid.org/0000-0002-8611-111X
Maureen RitcheyDepartment of Psychology, Boston College, Chestnut Hill, MA, 02467, USA.
Arne D EkstromCenter for Neuroscience, University of California, Davis, CA, 95618, USA.
Andrew P YonelinasCenter for Neuroscience, University of California, Davis, CA, 95618, USA.
Charan RanganathCenter for Neuroscience, University of California, Davis, CA, 95618, USA.

Funding

Emotional modulation of human memory processes and corticohippocampal systemsR00MH103401 · NIMH · BOSTON COLLEGE · PI RITCHEY, MAUREEN · 2016 to 2018
$744k
Emotional modulation of human memory processes and corticohippocampal systemsK99MH103401 · NIMH · UNIVERSITY OF CALIFORNIA AT DAVIS · PI RITCHEY, MAUREEN · 2015 to 2016
$116k
NIMH NIH HHS K99 MH103401NIMH NIH HHS R00 MH103401
6 · The paper itself

Abstract

The hippocampus plays a critical role in spatial and episodic memory. Mechanistic models predict that hippocampal subfields have computational specializations that differentially support memory. However, there is little empirical evidence suggesting differences between the subfields, particularly in humans. To clarify how hippocampal subfields support human spatial and episodic memory, we developed a virtual reality paradigm where participants passively navigated through houses (spatial contexts) across a series of videos (episodic contexts). We then used multivariate analyses of high-resolution fMRI data to identify neural representations of contextual information during recollection. Multi-voxel pattern similarity analyses revealed that CA1 represented objects that shared an episodic context as more similar than those from different episodic contexts. CA23DG showed the opposite pattern, differentiating between objects encountered in the same episodic context. The complementary characteristics of these subfields explain how we can parse our experiences into cohesive episodes while retaining the specific details that support vivid recollection.

Indexed as

Memory, EpisodicBrain MappingCA1 Region, HippocampalCA3 Region, HippocampalFemaleHumansMagnetic Resonance ImagingMaleMental RecallSpace PerceptionYoung Adult

Identifiers

PMID29348512
PMCPMC5773497

What OpenQuestion holds

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Registered trials

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.