Evidence map›Paper›PMID 27428652›Full record

ArticleNature neuroscience2016

Infantile amnesia reflects a developmental critical period for hippocampal learning.

Alessio Travaglia, Reto Bisaz, Eric S Sweet, Robert D Blitzer, Cristina M Alberini

Erratum issuedAbstract read
In one paragraph

Article in Nature neuroscience, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 93 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
93citing 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

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

  1. Pooled it
  2. Article
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  7. Review
  8. Critical Periods and Beyond: Dynamic Functions of Perineuronal Nets in Cognition, Development, and Disease.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Review
  9. Review
  10. Microglial plasticity across development mediates infantile amnesia.bioRxiv : the preprint server for biology · 2025
    Article
  11. Review
  12. Article
  13. Developmental changes in brain-wide fear memory networks.Neurobiology of learning and memory · 2025
    Article
  14. Article
  15. Review
  16. Article
  17. Research Review: Why do prospective and retrospective measures of maltreatment differ? A narrative review.Journal of child psychology and psychiatry, and allied disciplines · 2024
    Review
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  19. Article
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Alessio TravagliaCenter for Neural Science, New York University, New York, New York, USA.
Reto BisazCenter for Neural Science, New York University, New York, New York, USA.
Eric S SweetDepartment of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
Robert D BlitzerDepartment of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
Cristina M AlberiniCenter for Neural Science, New York University, New York, New York, USA.

Funding

Mechanism Underlying Memory StabilizationR01MH074736 · NIMH · NEW YORK UNIVERSITY · PI ALBERINI, CRISTINA M · 2007 to 2016
$5.0M
Cellular and Molecular Basis for Initial PD Pathogenic Events in LRRK2 BAC ModelsR01NS072359 · NINDS · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI BLITZER, ROBERT D., YUE, ZHENYU · 2011 to 2015
$1.8M
NIMH NIH HHS R01 MH074736NINDS NIH HHS R01 NS072359
6 · The paper itself

Abstract

Episodic memories formed during the first postnatal period are rapidly forgotten, a phenomenon known as 'infantile amnesia'. In spite of this memory loss, early experiences influence adult behavior, raising the question of which mechanisms underlie infantile memories and amnesia. Here we show that in rats an experience learned during the infantile amnesia period is stored as a latent memory trace for a long time; indeed, a later reminder reinstates a robust, context-specific and long-lasting memory. The formation and storage of this latent memory requires the hippocampus, follows a sharp temporal boundary and occurs through mechanisms typical of developmental critical periods, including the expression switch of the NMDA receptor subunits from 2B to 2A, which is dependent on brain-derived neurotrophic factor (BDNF) and metabotropic glutamate receptor 5 (mGluR5). Activating BDNF or mGluR5 after training rescues the infantile amnesia. Thus, early episodic memories are not lost but remain stored long term. These data suggest that the hippocampus undergoes a developmental critical period to become functionally competent.

Indexed as

AmnesiaAnimalsBrain-Derived Neurotrophic FactorFemaleHippocampusLearningMaleMemoryNerve NetRats, Long-EvansReceptors, N-Methyl-D-AspartateBrain-Derived Neurotrophic FactorReceptors, N-Methyl-D-Aspartate

Identifiers

PMID27428652
PMCPMC5003643

What OpenQuestion holds

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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.