Evidence map›Paper›PMID 19162084›Full record

ArticleBehavioural brain research2009

A neurocomputational model of tonic and phasic dopamine in action selection: a comparison with cognitive deficits in Parkinson's disease.

M Guthrie, C E Myers, M A Gluck

Registry-linked trialOpen access · greenAbstract read
In one paragraph

Article in Behavioural brain research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07647913 (Rhythm Psychophysics With Parkinson's Patients), which is not on this map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.9field-weighted citation impact, top 10% 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.

NCT07647913 nanot yet recruitingnot on this mapstarted 2026, after this paper: background citation

Rhythm Psychophysics With Parkinson's Patients

TypeinterventionalSponsorMcMaster UniversityRan2026 to 2027Enrolled34ConditionsParkinson Disease(PD)ArmsWithholding Levodopa
3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 49 citations in OpenAlex.

  1. Article
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  5. A Neuro-Computational Model for Discrete-Continuous Dual-Task Process.Frontiers in computational neuroscience · 2022
    Article
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  9. Age-Related Decline in Learning Deterministic Judgment-Based Sequences.The journals of gerontology. Series B, Psychological sciences and social sciences · 2020
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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

3 authors at 2 institutions in 2 countries.

M GuthrieCenter for Neuroscience, Rutgers University, 197 University Avenue, Suite 209, Newark, NJ 07102, USA. martin.guthrie@u-bordeaux2.fr
C E Myers
M A Gluck
Rutgers, The State University of New Jersey · USCentre National de la Recherche Scientifique · FR

Funding

Feedback Learning and L-Dopa in Parkinson's DiseaseR01NS047434 · NINDS · RUTGERS THE STATE UNIV OF NJ NEWARK · PI GLUCK, MARK A · 2005 to 2009
$542k
NINDS NIH HHS R01 NS047434NINDS NIH HHS R01 NS047434-02
6 · The paper itself

Abstract

The striatal dopamine signal has multiple facets; tonic level, phasic rise and fall, and variation of the phasic rise/fall depending on the expectation of reward/punishment. We have developed a network model of the striatal direct pathway using an ionic current level model of the medium spiny neuron that incorporates currents sensitive to changes in the tonic level of dopamine. The model neurons in the network learn action selection based on a novel set of mathematical rules that incorporate the phasic change in the dopamine signal. This network model is capable of learning to perform a sequence learning task that in humans is thought to be dependent on the basal ganglia. When both tonic and phasic levels of dopamine are decreased, as would be expected in unmedicated Parkinson's disease (PD), the model reproduces the deficits seen in a human PD group off medication. When the tonic level is increased to normal, but with reduced phasic increases and decreases in response to reward and punishment, respectively, as would be expected in PD medicated with L-Dopa, the model again reproduces the human data. These findings support the view that the cognitive dysfunctions seen in Parkinson's disease are not solely either due to the decreased tonic level of dopamine or to the decreased responsiveness of the phasic dopamine signal to reward and punishment, but to a combination of the two factors that varies dependent on disease stage and medication status.

Indexed as

Computer SimulationModels, NeurologicalNeural Networks, ComputerAnalysis of VarianceAnimalsAntiparkinson AgentsBrainCognition DisordersDopamineHumansLevodopaNeural PathwaysNeuronsParkinson DiseaseRewardAntiparkinson AgentsDopamineLevodopa

Identifiers

PMID19162084
PMCPMC4334387
OpenAlexW1967464402

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

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.