Cited by 106Neurotransmitter Receptor Influence on BehaviorNeural and Behavioral Psychology StudiesNeuroscience and Neuropharmacology Research

Activation of dorsal raphe serotonin neurons is necessary for waiting for delayed rewards

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Miyazaki, K. W., Miyazaki, K., Doya, K.·2012·Journal of Neuroscience

Abstract

The forebrain serotonergic system is a crucial component in the control of impulsive behaviors. We previously reported that the activity of serotonin neurons in the midbrain dorsal raphe nucleus increased when rats performed a task that required them to wait for delayed rewards. However, the causal relationship between serotonin neural activity and the tolerance for the delayed reward remained unclear. Here, we test whether the inhibition of serotonin neural activity by the local application of the 5-HT(1A) receptor agonist 8-hydroxy-2-(di-n-propylamino) tetralin in the dorsal raphe nucleus impairs rats' tolerance for delayed rewards. Rats performed a sequential food-water navigation task that required them to visit food and water sites alternately via a tone site to get rewards at both sites after delays. During the short (2 s) delayed reward condition, the inhibition of serotonin neural activity did not significantly influence the numbers of reward choice errors (nosepoke at an incorrect reward site following a conditioned reinforcer tone), reward wait errors (failure to wait for the delayed rewards), or total trials (sum of reward choice errors, reward wait errors, and acquired rewards). By contrast, during the long (7-11 s) delayed reward condition, the number of wait errors significantly increased while the numbers of total trials and choice errors did not significantly change. These results indicate that the activation of dorsal raphe serotonin neurons is necessary for waiting for long delayed rewards and suggest that elevated serotonin activity facilitates waiting behavior when there is the prospect of forthcoming rewards.

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Crossref · 10.1523/jneurosci.0915-12.2012

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  • Serotonergic neurons are active while rats wait for delayed rewards and blocking serotonin neuron activity results in premature responses.

    “Serotonergic neurons are active while rats wait for delayed rewards and blocking serotonin neuron activity results in premature responses [67].”

    From Linking ADHD to the Neural Circuitry of Attention (2017) · cites this paper as [67]

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Authors
Miyazaki, K. W., Miyazaki, K., & Doya, K.
Affiliations
Okinawa Institute of Science and Technology Graduate University (JP)
Venue
Journal of Neuroscience
Published
2012-08-01
Volume
32
Issue
31
Pages
10451-10457
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1978699011
Cited by
106
References
34
Citations by year
2026: 3 · 2025: 5 · 2024: 9 · 2023: 8 · 2022: 6 · 2021: 3 · 2020: 10 · 2019: 5 · 2018: 5 · 2017: 5 · 2016: 15 · 2015: 10 · 2014: 11 · 2013: 10 · 2012: 1
FWCI
4.22
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Ministry of Education, Culture, Sports, Science and Technology (23120007)
  • Japan Society for the Promotion of Science (24730643, 23120007)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
dorsal raphe nucleus, serotonergic neurons, 5-HT1A receptor agonist, 8-OH-DPAT, impulsive behavior
MeSH terms
Action Potentials, Analysis of Variance, Animals, Choice Behavior, Conditioning, Operant, Male, Raphe Nuclei, Reward, Serotonin, Time Factors, Serotonin Receptor Agonists, 8-Hydroxy-2-(di-n-propylamino)tetralin, Microdialysis, Rats, Long-Evans, Rats, Serotonergic Neurons

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