Evidence map›Paper›PMID 29682701›Full record

ArticlePsychopharmacology2018

Selective effects of 5-HT2C receptor modulation on performance of a novel valence-probe visual discrimination task and probabilistic reversal learning in mice.

Benjamin U Phillips, Sigma Dewan, Simon R O Nilsson, Trevor W Robbins, Christopher J Heath, Lisa M Saksida, Timothy J Bussey, Johan Alsiö

Open access · hybridAbstract read
In one paragraph

Article in Psychopharmacology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 17% 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, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.

  1. Pooled it
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  13. Parallel learning and cognitive flexibility impairments betweenFrontiers in behavioral neuroscience · 2022
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  19. The future of rodent models in depression research.Nature reviews. Neuroscience · 2019
    Review
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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

8 authors at 4 institutions in 3 countries.

Benjamin U PhillipsDepartment of Psychology and Behavioural and Clinical Neuroscience Institute, University of Cambridge, Downing Street, Cambridge, CB2 3EB, UK. bp342@cam.ac.uk.
Sigma DewanDepartment of Psychology and Behavioural and Clinical Neuroscience Institute, University of Cambridge, Downing Street, Cambridge, CB2 3EB, UK.
Simon R O NilssonRodent Behavioral Core, Department of Neuroscience and Physiology, Neuroscience Institute, New York University Medical Center, New York, NY, 10016, USA.
Trevor W RobbinsDepartment of Psychology and Behavioural and Clinical Neuroscience Institute, University of Cambridge, Downing Street, Cambridge, CB2 3EB, UK.
Christopher J HeathSchool of Life, Health and Chemical Sciences, The Open University, Walton Hall, Milton Keynes, MK7 6AA, UK.
Lisa M SaksidaMolecular Medicine Research Group, Robarts Research Institute and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada.
Timothy J BusseyMolecular Medicine Research Group, Robarts Research Institute and Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada.
Johan AlsiöDepartment of Psychology and Behavioural and Clinical Neuroscience Institute, University of Cambridge, Downing Street, Cambridge, CB2 3EB, UK.
University of Cambridge · GBWestern University · CANew York University · USThe Open University · GB

Funding

Medical Research CouncilNational Centre for the Replacement, Refinement and Reduction of Animals in Research NC/N001451/1Wellcome Trust 104631/Z/14/Z
6 · The paper itself

Abstract

rationaleDysregulation of the serotonin (5-HT) system is a pathophysiological component in major depressive disorder (MDD), a condition closely associated with abnormal emotional responsivity to positive and negative feedback. However, the precise mechanism through which 5-HT tone biases feedback responsivity remains unclear. 5-HT2C receptors (5-HT2CRs) are closely linked with aspects of depressive symptomatology, including abnormalities in reinforcement processes and response to stress. Thus, we aimed to determine the impact of 5-HT2CR function on response to feedback in biased reinforcement learning.

methodsWe used two touchscreen assays designed to assess the impact of positive and negative feedback on probabilistic reinforcement in mice, including a novel valence-probe visual discrimination (VPVD) and a probabilistic reversal learning procedure (PRL). Systemic administration of a 5-HT2CR agonist and antagonist resulted in selective changes in the balance of feedback sensitivity bias on these tasks.

resultsSpecifically, on VPVD, SB 242084, the 5-HT2CR antagonist, impaired acquisition of a discrimination dependent on appropriate integration of positive and negative feedback. On PRL, SB 242084 at 1 mg/kg resulted in changes in behaviour consistent with reduced sensitivity to positive feedback. In contrast, WAY 163909, the 5-HT2CR agonist, resulted in changes associated with increased sensitivity to positive feedback and decreased sensitivity to negative feedback.

conclusionsThese results suggest that 5-HT2CRs tightly regulate feedback sensitivity bias in mice with consequent effects on learning and cognitive flexibility and specify a framework for the influence of 5-HT2CRs on sensitivity to reinforcement.

Indexed as

Receptor, Serotonin, 5-HT2CAminopyridinesAnimalsAzepinesDiscrimination LearningIndolesMajor Depressive DisorderMaleMiceProbability LearningReinforcement, PsychologyReversal LearningSerotonin 5-HT2 Receptor AgonistsSerotonin 5-HT2 Receptor AntagonistsTask Performance and AnalysisVisual Perception1,2,3,4,8,9,10,10a-octahydro-7bH-cyclopenta(b)(1,4)diazepino(6,7,1hj)indole6-chloro-5-methyl-1-((2-(2-methylpyrid-3-yloxy)pyrid-5-yl)carbamoyl)indolineAminopyridinesAzepinesIndolesReceptor, Serotonin, 5-HT2CSerotonin 5-HT2 Receptor AgonistsSerotonin 5-HT2 Receptor Antagonists5-HT2C receptorSB 242084WAY 163909

Identifiers

PMID29682701
PMCPMC6015605
OpenAlexW2799788154

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.