Cited by 245Neurotransmitter Receptor Influence on BehaviorNeuroscience and Neuropharmacology ResearchNeural dynamics and brain function

Meaningful silences: how dopamine listens to the ACh pause

Cragg, Stephanie J.·2006·Trends in Neurosciences

Abstract

Mesostriatal dopaminergic neurons (DANs) and striatal cholinergic neurons (tonically active neurons, TANs) participate in signalling the behavioural or reward-related significance of stimuli in the environment. An antagonistic balance between dopamine (DA) and ACh is well known to regulate postsynaptic signal integration in the striatum. Recent findings have revealed additional presynaptic ACh-DA interactions of previously unappreciated sophistication. Striatal ACh acts presynaptically to polarize powerfully how opposing DAN activities are transduced into DA release. Furthermore, characteristic reward-related activities of TANs and DANs are temporally coincident but differently variant with reward probability. Reward-related DA signals could therefore be governed by the concomitant activity in TANs. This article discusses the dynamic implications for DA signalling when these phenomena act in concert. TAN pauses might powerfully enhance the contrast, or salience, of DA signals offered by reward-related bursts, and even by reward omission-related pauses, in DANs. Through such mechanisms, TAN-DAN interactions would be functionally cooperative.

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Crossref · 10.1016/j.tins.2006.01.003

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Authors
Cragg, S. J.
Affiliations
University of Oxford (GB)
Corresponding author
Cragg, Stephanie J.
Venue
Trends in Neurosciences
Publisher
Elsevier BV
Published
2006-03
Volume
29
Issue
3
Pages
125-131
ISSN
0166-2236 (ISSN-L)
OpenAlex
W2112338700
Cited by
245
References
73
Citations by year
2026: 7 · 2025: 15 · 2024: 20 · 2023: 6 · 2022: 9 · 2021: 8 · 2020: 9 · 2019: 7 · 2018: 11 · 2017: 13 · 2016: 15 · 2015: 10 · 2014: 17 · 2013: 4 · 2012: 12
FWCI
1.61
Type
journal article
Language
en
Open access
closed
Locations
  • Trends in Neurosciences (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
dopamine, acetylcholine, striatal cholinergic neurons, cholinergic interneurons, striatum, dopamine release, signal integration, reward probability, reward omission, salience
MeSH terms
Acetylcholine, Animals, Cholinergic Fibers, Dopamine, Humans, Learning, Neural Inhibition, Synaptic Transmission, Neurons, Perception, Reward, Signal Transduction, Neostriatum, Presynaptic Terminals

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