Cited by 515Neurotransmitter Receptor Influence on BehaviorNeuroscience and Neuropharmacology ResearchNeural and Behavioral Psychology Studies

Sensitization of midbrain dopamine neuron reactivity and the self-administration of psychomotor stimulant drugs

Vezina, Paul·2004·Neuroscience & Biobehavioral Reviews

Abstract

Psychostimulant drugs like amphetamine are readily self-administered by humans and laboratory animals by virtue of their actions on dopamine (DA) neurons in the midbrain. Exposing animals to this drug either systemically or in the cell body region of these neurons in the ventral tegmental area leads to long-lasting alterations in dopaminergic function. These have most often been assessed as increased locomotor activity and enhanced DA overflow in the nucleus accumbens (NAcc) after re-exposure to the drug weeks to months later. Evidence is presented showing that manipulations that produce this sensitization of midbrain DA neuron reactivity enhance the pursuit and self-administration of psychostimulant drugs. Procedures known to prevent the induction of sensitization by amphetamine also prevent the facilitation of drug taking. Enhanced drug self-administration and primed reinstatement of drug seeking are also accompanied by enhanced NAcc DA reactivity. Finally, drugs that increase NAcc DA overflow acutely but fail to produce sensitization of this effect are not associated with the subsequent enhancement of self-administration. These results indicate a direct relationship between the sensitization of midbrain dopamine neuron reactivity and the excessive pursuit and self-administration of psychostimulant drugs. Understanding the neuronal events and adaptations that underlie the induction and expression of sensitization may thus help elucidate how drug abuse develops, how it is reinstated and ultimately how both may be prevented.

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Crossref · 10.1016/j.neubiorev.2003.11.001

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Authors
Vezina, P.
Affiliations
University of Chicago (US)
Corresponding author
Vezina, Paul
Venue
Neuroscience & Biobehavioral Reviews
Publisher
Elsevier BV
Published
2004-01
Volume
27
Issue
8
Pages
827-839
ISSN
0149-7634 (ISSN-L)
OpenAlex
W2044600697
Cited by
515
References
118
Citations by year
2026: 3 · 2025: 7 · 2024: 3 · 2023: 10 · 2022: 15 · 2021: 5 · 2020: 16 · 2019: 9 · 2018: 19 · 2017: 23 · 2016: 26 · 2015: 24 · 2014: 34 · 2013: 28 · 2012: 23
FWCI
2.42
Type
journal article
Language
en
Open access
closed
Locations
  • Neuroscience & Biobehavioral Reviews (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r01da009860-04)
  • U.S. Public Health Service
  • National Institute on Drug Abuse (R01DA009397, DA-9860, DA-9397)
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 and Behavioral Psychology Studies
Keywords
midbrain dopaminergic neurons, amphetamine, ventral tegmental area, drug-seeking behavior, reinstatement of drug seeking, locomotor activity, drug addiction, substance use prevention
MeSH terms
Amphetamine, Central Nervous System Stimulants, Animals, Behavior, Animal, Dopamine, Locomotion, Mesencephalon, Neurons, Self Administration, Time Factors

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