Evidence map›Paper›PMID 28814464›Full record

ArticleLearning & memory (Cold Spring Harbor, N.Y.)2017

On the transition from reconsolidation to extinction of contextual fear memories.

Lindsey F Cassini, Charlotte R Flavell, Olavo B Amaral, Jonathan L C Lee

Abstract read
In one paragraph

Article in Learning & memory (Cold Spring Harbor, N.Y.), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

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

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Understanding the dynamic and destiny of memories.Neuroscience and biobehavioral reviews · 2021
    Review
  7. Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Postretrieval Relearning Strengthens Hippocampal Memories via Destabilization and Reconsolidation.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019
    Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. A Novel Retrieval-Dependent Memory Process Revealed by the Arrest of ERK1/2 Activation in the Basolateral Amygdala.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
    Article
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

4 authors.

Lindsey F CassiniSchool of Psychology, University of Birmingham, Birmingham, B15 2TT, United Kingdom.ORCID 0000-0002-2102-7005
Charlotte R FlavellSchool of Psychology, University of Birmingham, Birmingham, B15 2TT, United Kingdom.
Olavo B AmaralInstitute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil.ORCID 0000-0002-4299-8978
Jonathan L C LeeSchool of Psychology, University of Birmingham, Birmingham, B15 2TT, United Kingdom.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Retrieval of an associative memory can lead to different phenomena. Brief reexposure sessions tend to trigger reconsolidation, whereas more extended ones trigger extinction. In appetitive and fear cued Pavlovian memories, an intermediate "null point" period has been observed where neither process seems to be engaged. Here we investigated whether this phenomenon extends to contextual fear memory. Adult rats were subjected to a contextual fear conditioning paradigm, reexposed to the context 2 d later for 3, 5, 10, 20, or 30 min, with immediate injections of MK-801 or saline following reexposure, and tested on the following day. We observed a significant effect of MK-801 with the 3- and 30-min sessions, impairing reconsolidation and extinction, respectively. However, it did not have significant effects with 5-, 10-, or 20-min sessions, even though freezing decreased from reexposure to test. Further analyses indicated that this is not likely to be due to a variable transition point at the population level. In conclusion, the results show that in contextual fear memories there is a genuine "null point" between the parameters that induce reconsolidation and extinction, as defined by the effects of MK-801, although NMDA receptor-independent decreases in freezing can still occur in these conditions.

Indexed as

Conditioning, PsychologicalAnalysis of VarianceAnimalsDizocilpine MaleateExcitatory Amino Acid AntagonistsExtinction, PsychologicalFearFreezing Reaction, CatalepticMaleMaze LearningMemoryRatsDizocilpine MaleateExcitatory Amino Acid Antagonists

Identifiers

PMID28814464
PMCPMC5580521

What OpenQuestion holds

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Registered trials

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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.