Cited by 214Gambling Behavior and TreatmentsNeurotransmitter Receptor Influence on BehaviorNeural and Behavioral Psychology Studies

Dopamine release in ventral striatum during Iowa Gambling Task performance is associated with increased excitement levels in pathological gambling

Linnet, Jakob, Møller, Arne, Peterson, Ericka, Gjedde, Albert, Doudet, Doris·2011·Addiction

Abstract

Aims Gambling excitement is believed to be associated with biological measures of pathological gambling. Here, we tested the hypothesis that dopamine release would be associated with increased excitement levels in Pathological Gamblers compared with Healthy Controls. Design Pathological Gamblers and Healthy Controls were experimentally compared in a non‐gambling (baseline) and gambling condition. Measurements We used Positron Emission Tomography (PET) with the tracer raclopride to measure dopamine D 2/3 receptor availability in the ventral striatum during a non‐gambling and gambling condition of the Iowa Gambling Task (IGT). After each condition participants rated their excitement level. Setting Laboratory experiment. Participants 18 Pathological Gamblers and 16 Healthy Controls. Findings Pathological Gamblers with dopamine release in the ventral striatum had significantly higher excitement levels than Healthy Controls despite lower IGT performance. No differences in excitement levels and IGT performance were found between Pathological Gamblers and Healthy Controls without dopamine release. Pathological Gamblers showed a significant correlation between dopamine release and excitement level, while no such interaction was found in Healthy Controls. Conclusions In pathological gamblers dopamine release in the ventral striatum appears to be associated with increased excitement levels despite lower IGT performance. The results might suggest a ‘double deficit’ function of dopamine in pathological gambling, where dopamine release reinforces maladaptive gambling through increasing excitement levels, reducing inhibition of risky decisions, or a combination of both. These findings may have implications for the understanding of dopamine in pathological gambling and other forms of addiction.

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Crossref · 10.1111/j.1360-0443.2010.03126.x

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Authors
Linnet, J., Møller, A., Peterson, E., Gjedde, A., & Doudet, D.
Affiliations
  • Aarhus University (DK)
  • University of Copenhagen (DK)
  • University of British Columbia (CA)
Corresponding author
Linnet, Jakob
Venue
Addiction
Publisher
Wiley
Published
2010-09-30
Volume
106
Issue
2
Pages
383-390
ISSN
  • 0965-2140 (ISSN-L)
  • 1360-0443
OpenAlex
W2151801030
Cited by
214
References
49
Citations by year
2026: 8 · 2025: 7 · 2024: 8 · 2023: 7 · 2022: 6 · 2021: 7 · 2020: 57 · 2019: 5 · 2018: 14 · 2017: 4 · 2016: 10 · 2015: 18 · 2014: 18 · 2013: 25 · 2012: 14
FWCI
15.84
Type
journal article
Language
en
Open access
closed
Locations
  • Addiction (publishedVersion)
  • PubMed (publishedVersion)
  • University of Southern Denmark Research Portal (University of Southern Denmark) (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
Funders
National Center for Responsible Gaming
Topics
  • Social Sciences › Psychology › Clinical Psychology › Gambling Behavior and Treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
Keywords
gambling addiction, dopamine release, ventral striatum, Iowa Gambling Task, risky decision making, double-deficit hypothesis
MeSH terms
Adult, Analysis of Variance, Arousal, Basal Ganglia, Decision Making, Dopamine, Gambling, Humans, Male, Middle Aged, Task Performance and Analysis, Biomarkers, Case-Control Studies, Behavior, Addictive, Receptors, Dopamine D2, Dopamine Antagonists, Raclopride, Positron-Emission Tomography, Young Adult

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