Evidence map›Paper›PMID 27594823›Full record

ArticleFrontiers in neuroscience2016

Pramipexole Impairs Stimulus-Response Learning in Healthy Young Adults.

Haley Gallant, Andrew Vo, Ken N Seergobin, Penny A MacDonald

Open access · goldAbstract read
In one paragraph

Article in Frontiers in neuroscience, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

10 citing papers in PubMed, 25 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Dopamine Alters the Effect of Brain Stimulation on Decision-Making.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Frontiers in neurology · 2018
    Article
  9. The many facets of motor learning and their relevance for Parkinson's disease.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2017
    Review
  10. Article
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

4 authors at 1 institution in 1 country.

Haley GallantThe Brain and Mind Institute, University of Western Ontario London, ON, Canada.
Andrew VoThe Brain and Mind Institute, University of Western OntarioLondon, ON, Canada; Department of Psychology, University of Western OntarioLondon, ON, Canada.
Ken N SeergobinThe Brain and Mind Institute, University of Western Ontario London, ON, Canada.
Penny A MacDonaldThe Brain and Mind Institute, University of Western OntarioLondon, ON, Canada; Department of Psychology, University of Western OntarioLondon, ON, Canada; Department of Clinical Neurological Sciences, University of Western OntarioLondon, ON, Canada.
Western University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Dopaminergic therapy has paradoxical effects on cognition in Parkinson's disease (PD) patients, with some functions worsened and others improved. The dopamine overdose hypothesis is proposed as an explanation for these opposing effects of medication taking into account the varying levels of dopamine within different brain regions in PD. The detrimental effects of medication on cognition have been attributed to exogenous dopamine overdose in brain regions with spared dopamine levels in PD. It has been demonstrated that learning is most commonly worsened by dopaminergic medication. The current study aimed to investigate whether the medication-related learning impairment exhibited in PD patients is due to a main effect of medication by evaluating the dopamine overdose hypothesis in healthy young adults. Using a randomized, double-blind, placebo-controlled design, 40 healthy young undergraduate students completed a stimulus-response learning task. Half of the participants were treated with 0.5 mg of pramipexole, a dopamine agonist, whereas the other half were treated with a placebo. We found that stimulus-response learning was significantly impaired in participants on pramipexole relative to placebo controls. These findings are consistent with the dopamine overdose hypothesis and suggest that dopaminergic medication impairs learning independent of PD pathology. Our results have important clinical implications for conditions treated with pramipexole, particularly PD, restless leg syndrome, some forms of dystonia, and potentially depression.

Indexed as

dopamine agonistdopamine overdose hypothesisParkinson's diseasepramipexolestimulus-response learning

Identifiers

PMID27594823
PMCPMC4990534
OpenAlexW2513279500

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.