Evidence map›Paper›PMID 30332645›Full record

ArticleCell reports2018

Dopamine Neurons Mediate Learning and Forgetting through Bidirectional Modulation of a Memory Trace.

Jacob A Berry, Anna Phan, Ronald L Davis

Abstract read
In one paragraph

Article in Cell reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing 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

67 citing papers in PubMed.

  1. Article
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  7. Dynamics of two distinct memory interactions during water seeking inProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  8. Article
  9. Article
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  11. Article
  12. Article
  13. Review
  14. Review
  15. Modeling neurodegenerative and neurodevelopmental disorders in theLearning & memory (Cold Spring Harbor, N.Y.) · 2024
    Review
  16. Review
  17. Review
  18. Review
  19. Diverse memory paradigms inLearning & memory (Cold Spring Harbor, N.Y.) · 2024
    Review
  20. Review

7 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

3 authors.

Jacob A BerryDepartment of Neuroscience, The Scripps Research Institute Florida, Jupiter, FL 33458, USA. Electronic address: jaberry@scripps.edu.
Anna PhanDepartment of Neuroscience, The Scripps Research Institute Florida, Jupiter, FL 33458, USA.
Ronald L DavisDepartment of Neuroscience, The Scripps Research Institute Florida, Jupiter, FL 33458, USA. Electronic address: rdavis@scripps.edu.

Funding

Biology of memoryR35NS097224 · NINDS · UNIVERSITY OF FLORIDA · PI DAVIS, RONALD L · 2017 to 2024
$9.1M
Olfactory memory trace formation in DrosophilaR01NS052351 · NINDS · SCRIPPS RESEARCH INSTITUTE, THE · PI DAVIS, RONALD L · 2006 to 2016
$4.2M
Molecular Biology of Drosophila Learning and MemoryR37NS019904 · NINDS · SCRIPPS FLORIDA · PI DAVIS, RONALD L · 2013 to 2016
$1.9M
NINDS NIH HHS R01 NS052351NINDS NIH HHS R35 NS097224NINDS NIH HHS R37 NS019904
6 · The paper itself

Abstract

It remains unclear how memory engrams are altered by experience, such as new learning, to cause forgetting. Here, we report that short-term aversive memory in Drosophila is encoded by and retrieved from the mushroom body output neuron MBOn-γ2α'1. Pairing an odor with aversive electric shock creates a robust depression in the calcium response of MBOn-γ2α'1 and increases avoidance to the paired odor. Electric shock after learning, which activates the cognate dopamine neuron DAn-γ2α'1, restores the response properties of MBOn-γ2α'1 and causes behavioral forgetting. Conditioning with a second odor restores the responses of MBOn-γ2α'1 to a previously learned odor while depressing responses to the newly learned odor, showing that learning and forgetting can occur simultaneously. Moreover, optogenetic activation of DAn-γ2α'1 is sufficient for the bidirectional modulation of MBOn-γ2α'1 response properties. Thus, a single DAn can drive both learning and forgetting by bidirectionally modulating a cellular memory trace.

Indexed as

AnimalsAvoidance LearningBehavior, AnimalDopaminergic NeuronsDrosophila melanogasterDrosophila ProteinsFemaleMemory, Short-TermMushroom BodiesSmellDrosophila Proteinsdopamine neuronforgettingmemory tracememory updating

Identifiers

PMID30332645
PMCPMC6239218

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.