Evidence map›Paper›PMID 32610039›Full record

ArticleNeuron2020

VTA Glutamate Neuron Activity Drives Positive Reinforcement Absent Dopamine Co-release.

Vivien Zell, Thomas Steinkellner, Nick G Hollon, Shelley M Warlow, Elizabeth Souter, Lauren Faget, Avery C Hunker, Xin Jin, Larry S Zweifel, Thomas S Hnasko

Open access · bronzeAbstract read
In one paragraph

Article in Neuron, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 75 papers.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed
8.9field-weighted citation impact, top 1% of its field
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

75 citing papers in PubMed, 135 citations in OpenAlex.

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  11. Review
  12. Salience Signaling and Stimulus Scaling of Ventral Tegmental Area Glutamate Neuron Subtypes.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  13. Modulation of Dopamine Neurons Alters Behavior and Event Encoding in the Nucleus Accumbens during Pavlovian Conditioning.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  14. Article
  15. Article
  16. Article
  17. How Dopamine Enables Learning from Aversion.Current opinion in behavioral sciences · 2025
    Article
  18. Article
  19. Article
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 1 country.

Vivien ZellDepartment of Neurosciences, University of California, San Diego, La Jolla, CA 92093, USA.
Thomas SteinkellnerDepartment of Neurosciences, University of California, San Diego, La Jolla, CA 92093, USA.
Nick G HollonMolecular Neurobiology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA.
Shelley M WarlowDepartment of Neurosciences, University of California, San Diego, La Jolla, CA 92093, USA.
Elizabeth SouterDepartment of Neurosciences, University of California, San Diego, La Jolla, CA 92093, USA.
Lauren FagetDepartment of Neurosciences, University of California, San Diego, La Jolla, CA 92093, USA.
Avery C HunkerDepartment of Pharmacology, University of Washington, Seattle, WA 98195, USA.
Xin JinMolecular Neurobiology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA.
Larry S ZweifelDepartment of Pharmacology, University of Washington, Seattle, WA 98195, USA.
Thomas S HnaskoDepartment of Neurosciences, University of California, San Diego, La Jolla, CA 92093, USA; Research Service VA San Diego Healthcare System, San Diego, CA 92161, USA. Electronic address: thnasko@health.ucsd.edu.
University of California San Diego · USSalk Institute for Biological Studies · USUniversity of Washington · USUC San Diego Health System · US

Funding

TRAINING IN MOLECULAR AND CELLULAR BIOLOGYT32GM007270 · NIGMS · UNIVERSITY OF WASHINGTON · PI RAIBLE, DAVID W · 1985 to 2020
$21.0M
University of Washington Center of Excellence in Opioid Addiction ResearchP30DA048736 · NIDA · UNIVERSITY OF WASHINGTON · PI Charles Chavkin · 2019 to 2026
$13.0M
Role of novel VTA neurons in addiction-related behaviorsR01DA036612 · NIDA · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI Thomas Hnasko · 2014 to 2026
$5.6M
Regulation of VGLUT2 in aging-related neurodegenerative disordersK99AG059834 · NIA · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI STEINKELLNER, THOMAS · 2018 to 2019
$236k
Stress effects on circuitry regulating nigrostriatal dopamine during goal-directed actionK99MH119312 · NIMH · SALK INSTITUTE FOR BIOLOGICAL STUDIES · PI HOLLON, NICK GARBER · 2019 to 2021
$212k
Novel Mesolimbic Glutamate Projection in RewardK99DA046514 · NIDA · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI ZELL, VIVIEN EDOUARD · 2019 to 2019
$172k
Neurophysiological Characterization of Novel Neurotensin Receptor Ligands to Define Therapeutic Potential in Combatting AddictionI01BX003759 · VA · VA SAN DIEGO HEALTHCARE SYSTEM · PI HNASKO, THOMAS · 2018 to 2022
–
Austrian Science Fund FWF J 3656BLRD VA I01 BX003759NIA NIH HHS K99 AG059834NIDA NIH HHS K99 DA046514NIDA NIH HHS P30 DA048736NIDA NIH HHS R01 DA036612NIGMS NIH HHS T32 GM007270NIMH NIH HHS K99 MH119312
6 · The paper itself

Abstract

Like ventral tegmental area (VTA) dopamine (DA) neurons, VTA glutamate neuron activity can support positive reinforcement. However, a subset of VTA neurons co-release DA and glutamate, and DA release might be responsible for behavioral reinforcement induced by VTA glutamate neuron activity. To test this, we used optogenetics to stimulate VTA glutamate neurons in which tyrosine hydroxylase (TH), and thus DA biosynthesis, was conditionally ablated using either floxed Th mice or viral-based CRISPR/Cas9. Both approaches led to loss of TH expression in VTA glutamate neurons and loss of DA release from their distal terminals in nucleus accumbens (NAc). Despite loss of the DA signal, optogenetic activation of VTA glutamate cell bodies or axon terminals in NAc was sufficient to support reinforcement. These results suggest that glutamate release from VTA is sufficient to promote reinforcement independent of concomitant DA co-release, establishing a non-DA mechanism by which VTA activity can support reward-seeking behaviors.

Indexed as

AnimalsBehavior, AnimalDopamineGlutamic AcidMiceMotivationNeuronsOptogeneticsReinforcement, PsychologyRewardVentral Tegmental AreaDopamineGlutamic Acidco-releaseCRISPR/Cas9dopamineglutamateoptogeneticsreinforcementrewardVentral tegmental areaVGLUT2

Identifiers

PMID32610039
PMCPMC7780844
OpenAlexW3040191515

What OpenQuestion holds

Textmetadata
LicenceTDM
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.