Cited by 117Neurotransmitter Receptor Influence on BehaviorMemory and Neural MechanismsNeural and Behavioral Psychology Studies

Convergent Processing of Both Positive and Negative Motivational Signals by the VTA Dopamine Neuronal Populations

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Wang, Dong V., Tsien, Joe Z.·2011·PLoS ONE

Abstract

Dopamine neurons in the ventral tegmental area (VTA) have been traditionally studied for their roles in reward-related motivation or drug addiction. Here we study how the VTA dopamine neuron population may process fearful and negative experiences as well as reward information in freely behaving mice. Using multi-tetrode recording, we find that up to 89% of the putative dopamine neurons in the VTA exhibit significant activation in response to the conditioned tone that predict food reward, while the same dopamine neuron population also respond to the fearful experiences such as free fall and shake events. The majority of these VTA putative dopamine neurons exhibit suppression and offset-rebound excitation, whereas ∼25% of the recorded putative dopamine neurons show excitation by the fearful events. Importantly, VTA putative dopamine neurons exhibit parametric encoding properties: their firing change durations are proportional to the fearful event durations. In addition, we demonstrate that the contextual information is crucial for these neurons to respectively elicit positive or negative motivational responses by the same conditioned tone. Taken together, our findings suggest that VTA dopamine neurons may employ the convergent encoding strategy for processing both positive and negative experiences, intimately integrating with cues and environmental context.

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  • Acute stressors are encoded by dopamine-releasing neurons in the VTA, cause dopamine sensitization in the nucleus accumbens, and facilitate drug taking; mesolimbic dopamine release also encodes negative motivational states and stress responses.

    “Recent experiments also show that acute stressors are encoded by DA-releasing neurons in the VTA, cause DA sensitization in the NAC, and facilitate drug taking; demonstrating that mesolimbic DA release also encodes negative motivational states and stress responses (Miczek et al 2011; Wang and Tsien 2011).”
  • Some stress-related effects of CRF in the NAC shell may be DA-dependent.

    “Some of the stress-related effects of CRF in the NAC shell may be DA-dependent; recall that DA is also modulated by acute and chronic stressors (Miczek et al 2011; Wang and Tsien 2011; Chen et al 2012b).”
  • In freely behaving mice, VTA dopaminergic neurons can exhibit responses to different valences; 89% respond with activation to a conditioned reward, they also respond to fearful events with the majority showing suppression, and 25% respond with excitation to both positive and fearful events.

    “Thus, although 89% of VTA dopaminergic neurons respond with activation to a conditioned reward, they also respond to fearful events, with the majority of the neurons showing suppression. Interestingly, 25% respond with excitation to both positive and fearful events [101].”

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Authors
Wang, D. V., & Tsien, J. Z.
Affiliations
East China Normal University (CN)
Corresponding author
Tsien, Joe Z.
Venue
PLoS ONE
Published
2011-02-15
Volume
6
Issue
2
Pages
e17047
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2083000736
Cited by
116
References
53
Citations by year
2026: 2 · 2025: 8 · 2024: 5 · 2023: 1 · 2022: 4 · 2021: 4 · 2020: 6 · 2019: 6 · 2018: 6 · 2017: 5 · 2016: 8 · 2015: 7 · 2014: 17 · 2013: 13 · 2012: 17
FWCI
7.15
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
Funders
  • Georgia Research Alliance
  • National Institute on Aging (AG025918, R01AG034663, AG024022, R01AG025918, AG034663, R01AG024022)
  • National Institute of Mental Health (MH060236, R01MH060236)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
Keywords
ventral tegmental area, dopaminergic neurons, fear, reward, contextual modulation, free fall, mice
MeSH terms
Animals, Fear, Male, Mice, Inbred C57BL, Motivation, Time Factors, Ventral Tegmental Area, Mice, Dopaminergic Neurons

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