Evidence map›Paper›PMID 28373651›Full record

ArticleScientific reports2017

Fatigue modulates dopamine availability and promotes flexible choice reversals during decision making.

Pierpaolo Iodice, Claudio Ferrante, Luigi Brunetti, Simona Cabib, Feliciano Protasi, Mark E Walton, Giovanni Pezzulo

Abstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–field-weighted citation impact
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

17 citing papers in PubMed.

  1. Article
  2. Dopamine Boosts Motivation for Prosocial Effort in Parkinson's Disease.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
    Article
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  12. Article
  13. Anti-Inflammatory and Neuromodulatory Effects Induced byMolecules (Basel, Switzerland) · 2020
    Article
  14. Article
  15. Adolescent ΔFrontiers in psychiatry · 2020
    Article
  16. Review
  17. 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

7 authors.

Pierpaolo IodiceInstitute of Cognitive Sciences and Technologies, National Research Council, Via San Martino della Battaglia 44, 00185, Rome, Italy.
Claudio FerranteDepartment of Pharmacy, University G. d'Annunzio of Chieti, via dei Vestini 31, 66013, Chieti, Italy.
Luigi BrunettiDepartment of Pharmacy, University G. d'Annunzio of Chieti, via dei Vestini 31, 66013, Chieti, Italy.
Simona CabibUniversity Sapienza, Dept. Psychology, Centro D. Bovet, 00185, Rome, Italy.
Feliciano ProtasiCeSI-Met - Center for Research on Ageing and Translational Medicine & DNICS - Department of Neuroscience, Imaging and Clinical Sciences, University G. d' Annunzio of Chieti, Chieti, 66100, Italy.
Mark E WaltonDepartment of Experimental Psychology, University of Oxford, Oxford, UK.
Giovanni PezzuloInstitute of Cognitive Sciences and Technologies, National Research Council, Via San Martino della Battaglia 44, 00185, Rome, Italy. giovanni.pezzulo@istc.cnr.it.ORCID http://orcid.org/0000-0001-6813-8282

Funding

Wellcome Trust
6 · The paper itself

Abstract

During decisions, animals balance goal achievement and effort management. Despite physical exercise and fatigue significantly affecting the levels of effort that an animal exerts to obtain a reward, their role in effort-based choice and the underlying neurochemistry are incompletely known. In particular, it is unclear whether fatigue influences decision (cost-benefit) strategies flexibly or only post-decision action execution and learning. To answer this question, we trained mice on a T-maze task in which they chose between a high-cost, high-reward arm (HR), which included a barrier, and a low-cost, low-reward arm (LR), with no barrier. The animals were parametrically fatigued immediately before the behavioural tasks by running on a treadmill. We report a sharp choice reversal, from the HR to LR arm, at 80% of their peak workload (PW), which was temporary and specific, as the mice returned to choose the HC when the animals were successively tested at 60% PW or in a two-barrier task. These rapid reversals are signatures of flexible choice. We also observed increased subcortical dopamine levels in fatigued mice: a marker of individual bias to use model-based control in humans. Our results indicate that fatigue levels can be incorporated in flexible cost-benefits computations that improve foraging efficiency.

Indexed as

Choice BehaviorDecision MakingAnimalsBrainConditioning, OperantDopamineFatigueFemaleMaze LearningMiceSerotoninDopamineSerotonin

Identifiers

PMID28373651
PMCPMC5428685

What OpenQuestion holds

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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.