Evidence map›Paper›PMID 34193974›Full record

ArticleMolecular psychiatry2021

Distinct roles for dopamine clearance mechanisms in regulating behavioral flexibility.

Clio Korn, Thomas Akam, Kristian H R Jensen, Cristiana Vagnoni, Anna Huber, Elizabeth M Tunbridge, Mark E Walton

Open access · hybridAbstract read
In one paragraph

Article in Molecular psychiatry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.6field-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.

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

22 citing papers in PubMed, 30 citations in OpenAlex.

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  5. Synaptogyrin-3 plays a critical role in addiction-related dopamine dysfunction and behavioral maladaptations.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  6. International journal of molecular sciences · 2026
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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

7 authors at 1 institution in 1 country.

Clio KornDepartment of Psychiatry, University of Oxford, Oxford, OX3 7JX, UK.ORCID http://orcid.org/0000-0001-6328-6876
Thomas AkamDepartment of Experimental Psychology, University of Oxford, Oxford, OX1 3SR, UK.
Kristian H R JensenDepartment of Psychiatry, University of Oxford, Oxford, OX3 7JX, UK.ORCID http://orcid.org/0000-0001-6117-4379
Cristiana VagnoniDepartment of Experimental Psychology, University of Oxford, Oxford, OX1 3SR, UK.
Anna HuberDepartment of Psychiatry, University of Oxford, Oxford, OX3 7JX, UK.ORCID http://orcid.org/0000-0003-1411-8256
Elizabeth M Tunbridge *Department of Psychiatry, University of Oxford, Oxford, OX3 7JX, UK.ORCID http://orcid.org/0000-0002-2966-2281
Mark E Walton *Department of Experimental Psychology, University of Oxford, Oxford, OX1 3SR, UK. mark.walton@psy.ox.ac.uk.ORCID http://orcid.org/0000-0003-0117-2894
University of Oxford · GB

Funding

Biotechnology and Biological Sciences Research Council BB/M024148/1Wellcome Trust 202831Wellcome Trust 202831/Z/16/ZWellcome Trust WT090051MAWellcome Trust WT096586
6 · The paper itself

Abstract

Dopamine plays a crucial role in adaptive behavior, and dysfunctional dopamine is implicated in multiple psychiatric conditions characterized by inflexible or inconsistent choices. However, the precise relationship between dopamine and flexible decision making remains unclear. One reason is that, while many studies have focused on the activity of dopamine neurons, efficient dopamine signaling also relies on clearance mechanisms, notably the dopamine transporter (DAT), which predominates in striatum, and catechol-O-methyltransferase (COMT), which predominates in cortex. The exact locus, extent, and timescale of the effects of DAT and COMT are uncertain. Moreover, there is limited data on how acute disruption of either mechanism affects flexible decision making strategies mediated by cortico-striatal networks. To address these issues, we combined pharmacological modulation of DAT and COMT with electrochemistry and behavior in mice. DAT blockade, but not COMT inhibition, regulated sub-second dopamine release in the nucleus accumbens core, but surprisingly neither clearance mechanism affected evoked release in prelimbic cortex. This was not due to a lack of sensitivity, as both amphetamine and atomoxetine changed the kinetics of sub-second release. In a multi-step decision making task where mice had to respond to reversals in either reward probabilities or the choice sequence to reach the goal, DAT blockade selectively impaired, and COMT inhibition improved, performance after reward reversals, but neither manipulation affected the adaptation of choices after action-state transition reversals. Together, our data suggest that DAT and COMT shape specific aspects of behavioral flexibility by regulating different aspects of the kinetics of striatal and cortical dopamine, respectively.

Indexed as

Catechol O-MethyltransferaseDopamineAnimalsCorpus StriatumDopamine Plasma Membrane Transport ProteinsKineticsMiceNucleus AccumbensCatechol O-MethyltransferaseDopamineDopamine Plasma Membrane Transport Proteins

Identifiers

PMID34193974
PMCPMC8872990
OpenAlexW3167213574

What OpenQuestion holds

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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.