Evidence map›Paper›PMID 41814090›Full record

ArticleNature neuroscience2026

Deconstruction of a memory engram reveals distinct ensembles recruited at learning.

Clément Pouget, Flora Morier, Livia Autore, Nadja Treiber, Pablo Fernández García, Nina Mazza, Run Zhang, Isaiah L Reeves, Stephen M Winston, Mark A Brimble and 2 more

Abstract read
In one paragraph

Article in Nature neuroscience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Review
  2. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors.

Clément PougetCerebral Codes and Circuits Connectivity Team, Brain Plasticity Laboratory, CNRS UMR 8249, ESPCI Paris, PSL Research University, Paris, France.ORCID http://orcid.org/0009-0003-4320-5161
Flora MorierCerebral Codes and Circuits Connectivity Team, Brain Plasticity Laboratory, CNRS UMR 8249, ESPCI Paris, PSL Research University, Paris, France.
Livia AutoreCerebral Codes and Circuits Connectivity Team, Brain Plasticity Laboratory, CNRS UMR 8249, ESPCI Paris, PSL Research University, Paris, France.
Nadja TreiberCerebral Codes and Circuits Connectivity Team, Brain Plasticity Laboratory, CNRS UMR 8249, ESPCI Paris, PSL Research University, Paris, France.
Pablo Fernández GarcíaCerebral Codes and Circuits Connectivity Team, Brain Plasticity Laboratory, CNRS UMR 8249, ESPCI Paris, PSL Research University, Paris, France.ORCID http://orcid.org/0009-0001-4885-5791
Nina MazzaCerebral Codes and Circuits Connectivity Team, Brain Plasticity Laboratory, CNRS UMR 8249, ESPCI Paris, PSL Research University, Paris, France.
Run ZhangBiomedical Engineering Graduate Group, University of California, Davis, Davis, CA, USA.
Isaiah L ReevesDepartment of Surgery, St. Jude Children's Research Hospital, Memphis, TN, USA.
Stephen M WinstonDepartment of Surgery, St. Jude Children's Research Hospital, Memphis, TN, USA.
Mark A BrimbleDepartment of Host-Microbe Interactions, St. Jude Children's Research Hospital, Memphis, TN, USA.ORCID http://orcid.org/0000-0001-7182-9818
Christina K KimCenter for Neuroscience, University of California, Davis, Davis, CA, USA.ORCID http://orcid.org/0000-0002-1466-7098
Gisella VetereCerebral Codes and Circuits Connectivity Team, Brain Plasticity Laboratory, CNRS UMR 8249, ESPCI Paris, PSL Research University, Paris, France. gisella.vetere@espci.fr.ORCID http://orcid.org/0000-0002-4595-4284

Funding

Activity-dependent probes for spatially-defined proteomicsDP2MH136588 · NIMH · UNIVERSITY OF CALIFORNIA AT DAVIS · PI Christina Kim · 2023 to 2026
$2.4M
Agence Nationale de la Recherche (French National Research Agency) ANR-20-CE16-0015-01Brain and Behavior Research Foundation (Brain & Behavior Research Foundation) 29489Burroughs Wellcome Fund (BWF) 1019469Foundation for the National Institutes of Health (Foundation for the National Institutes of Health, Inc.) DP2MH136588NIMH NIH HHS DP2 MH136588
6 · The paper itself

Abstract

The mechanisms of associative memory formation, including which cells encode a memory and the timing of their engagement, remain poorly understood. By visualizing and tagging cells based on their calcium influx with unparalleled temporal precision, we identified nonoverlapping dorsal CA1 neuronal ensembles that are differentially active during associative fear memory acquisition. We dissected the acquisition experience into periods during which salient stimuli were presented, or certain mouse behaviors occurred, and found that cells associated with specific acquisition periods are sufficient alone to drive memory expression and contribute to fear engram formation. This study delineated the distinct identities of the cell ensembles active during learning and revealed which ones form the core engram and are essential for memory formation and recall.

Indexed as

Association LearningCA1 Region, HippocampalMemoryNeuronsAnimalsCalciumConditioning, ClassicalFearMaleMiceMice, Inbred C57BLCalcium

Identifiers

PMID41814090
PMCPMC13309282

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.