Evidence map›Paper›PMID 31603493›Full record

ArticleBrain : a journal of neurology2019

Dopaminergic medication reduces striatal sensitivity to negative outcomes in Parkinson's disease.

Brónagh McCoy, Sara Jahfari, Gwenda Engels, Tomas Knapen, Jan Theeuwes

Open access · bronzeAbstract read
In one paragraph

Article in Brain : a journal of neurology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

26 citing papers in PubMed, 43 citations in OpenAlex.

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  7. Differentiating Reinforcement Learning and Episodic Memory in Value-Based Decisions in Parkinson's Disease.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
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  10. The roots of polarization in the individual reward system.Proceedings. Biological sciences · 2024
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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

5 authors at 2 institutions in 1 country.

Brónagh McCoyDepartment of Experimental and Applied Psychology, Vrije Universiteit, Amsterdam, The Netherlands.
Sara JahfariSpinoza Centre for Neuroimaging, Royal Academy of Sciences, Amsterdam, The Netherlands.
Gwenda EngelsDepartment of Clinical, Neuro and Developmental Psychology, Vrije Universiteit, Amsterdam, The Netherlands.
Tomas KnapenDepartment of Experimental and Applied Psychology, Vrije Universiteit, Amsterdam, The Netherlands.
Jan TheeuwesDepartment of Experimental and Applied Psychology, Vrije Universiteit, Amsterdam, The Netherlands.
Vrije Universiteit Amsterdam · NLUniversity of Amsterdam · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Reduced levels of dopamine in Parkinson's disease contribute to changes in learning, resulting from the loss of midbrain neurons that transmit a dopaminergic teaching signal to the striatum. Dopamine medication used by patients with Parkinson's disease has previously been linked to behavioural changes during learning as well as to adjustments in value-based decision-making after learning. To date, however, little is known about the specific relationship between dopaminergic medication-driven differences during learning and subsequent changes in approach/avoidance tendencies in individual patients. Twenty-four Parkinson's disease patients ON and OFF dopaminergic medication and 24 healthy controls subjects underwent functional MRI while performing a probabilistic reinforcement learning experiment. During learning, dopaminergic medication reduced an overemphasis on negative outcomes. Medication reduced negative (but not positive) outcome learning rates, while concurrent striatal blood oxygen level-dependent responses showed reduced prediction error sensitivity. Medication-induced shifts in negative learning rates were predictive of changes in approach/avoidance choice patterns after learning, and these changes were accompanied by systematic striatal blood oxygen level-dependent response alterations. These findings elucidate the role of dopamine-driven learning differences in Parkinson's disease, and show how these changes during learning impact subsequent value-based decision-making.

Indexed as

AgedAvoidance LearningComputer SimulationCorpus StriatumDecision MakingDopamine AgentsFemaleHumansLearningMagnetic Resonance ImagingMaleMiddle AgedNeuropsychological TestsOxygenParkinson DiseaseTreatment OutcomeDopamine AgentsOxygenBayesian hierarchical modellingdopaminefunctional MRIParkinson’s diseasereinforcement learning

Identifiers

PMID31603493
PMCPMC6821230
OpenAlexW2980127542

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

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.