Evidence map›Paper›PMID 30948756›Full record

ArticleScientific reports2019

Baseline impulsivity may moderate L-DOPA effects on value-based decision-making.

Johannes Petzold, Annika Kienast, Ying Lee, Shakoor Pooseh, Edythe D London, Thomas Goschke, Michael N Smolka

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
3.9field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 44 citations in OpenAlex.

  1. Dopamine and Temporal Discounting: Revisiting Pharmacology and Individual Differences.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Trial
  2. Trial
  3. Trial
  4. Trial
  5. Trial
  6. Trial
  7. Sense of agency and decision making.Frontiers in psychology · 2026
    Article
  8. The enduring legacy of Peter B. Dews: Rate-dependency and impulsive choice.The Journal of pharmacology and experimental therapeutics · 2025
    Review
  9. Article
  10. Article
  11. Article
  12. Observational
  13. Article
  14. Review
  15. Article
  16. Article
  17. The effects of early life stress on impulsivity.Neuroscience and biobehavioral reviews · 2022
    Review
  18. Article
  19. Article
  20. Which came first: Cannabis use or deficits in impulse control?Progress in neuro-psychopharmacology & biological psychiatry · 2021
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 3 countries.

Johannes PetzoldDepartment of Psychiatry and Neuroimaging Center, Technische Universität Dresden, Dresden, Germany.ORCID http://orcid.org/0000-0003-4163-9014
Annika KienastDepartment of Psychiatry and Neuroimaging Center, Technische Universität Dresden, Dresden, Germany.
Ying LeeDepartment of Psychiatry and Neuroimaging Center, Technische Universität Dresden, Dresden, Germany.
Shakoor PoosehDepartment of Psychiatry and Neuroimaging Center, Technische Universität Dresden, Dresden, Germany.
Edythe D LondonDepartment of Psychiatry and Biobehavioral Sciences, Department of Molecular and Medical Pharmacology and the Brain Research Institute, University of California at Los Angeles, Los Angeles, CA, USA.
Thomas GoschkeDepartment of Psychology and Neuroimaging Center, Technische Universität Dresden, Dresden, Germany.
Michael N SmolkaDepartment of Psychiatry and Neuroimaging Center, Technische Universität Dresden, Dresden, Germany. michael.smolka@tu-dresden.de.ORCID http://orcid.org/0000-0001-5398-5569
Technische Universität Dresden · DEUniversity of California, Los Angeles · USUniversity of Freiburg · DEUniversity of Oxford · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Research has indicated a major role of dopamine in decision-making processes, but the underlying mechanisms remain largely unknown due to inconsistency in effects of dopaminergic drugs. To clarify the impact of dopamine on impulsive choice, we administered 150 mg L-DOPA to 87 healthy adults in a randomized, placebo-controlled, double-blind, crossover study, evaluating performance in four value-based decision-making tasks. We predicted that baseline impulsivity would moderate L-DOPA effects. In support of our hypothesis, L-DOPA had no main effect on impulsive choice, but reduced risk-seeking for gains in more-impulsive subjects. Because L-DOPA effects may be influenced by body weight, we repeated our analyses on data from half of the sample (n = 44) with lower weight, anticipating a stronger effect. In addition to the effect on risk-seeking for gains, low-weight participants also exhibited baseline-dependent effects of L-DOPA on loss aversion and delay discounting. Our results are consistent with the hypothesis of an inverted U-shaped dopamine function in which both low and high extremes of dopamine signaling are associated with high-impulsive choice. Consideration of differential baseline impulsivity and body weight may resolve previous seemingly paradoxical pharmacological results and might deepen our understanding of dopaminergic mechanisms underlying impulsivity.

Indexed as

AdultBody WeightBrainChoice BehaviorCross-Over StudiesDecision MakingDelay DiscountingDopamineDopamine AgentsDouble-Blind MethodFemaleHumansImpulsive BehaviorLevodopaMalePrefrontal CortexDopamineDopamine AgentsLevodopa

Identifiers

PMID30948756
PMCPMC6449394
OpenAlexW2928623057

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.