Evidence map›Paper›PMID 26694811›Full record

ArticlePsychopharmacology2016

Effects of lisdexamfetamine and s-citalopram, alone and in combination, on effort-related choice behavior in the rat.

Samantha E Yohn, Laura Lopez-Cruz, Peter H Hutson, Merce Correa, John D Salamone

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In one paragraph

Article in Psychopharmacology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

37 citing papers in PubMed, 72 citations in OpenAlex.

  1. Trial
  2. Trial
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  4. Conditioned versus innate effort-based tasks reveal divergence in antidepressant effect on motivational state in male mice.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2025
    Article
  5. Article
  6. Potential therapeutics for effort-related motivational dysfunction: assessing novel atypical dopamine transport inhibitors.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
    Article
  7. Article
  8. Article
  9. Amphetamines Improve the Motivation to Invest Effort in Attention-Deficit/Hyperactivity Disorder.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  10. Biological psychiatry global open science · 2023
    Article
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  17. Vigor, Effort-Related Aspects of Motivation and Anhedonia.Current topics in behavioral neurosciences · 2022
    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

5 authors at 3 institutions in 2 countries.

Samantha E YohnDepartment of Psychology, University of Connecticut, Storrs, CT, 06261-1020, USA.
Laura Lopez-CruzÀrea de Psicobiologia, Campus de Riu Sec, Universitat Jaume I, Castelló, 12071, Spain.
Peter H HutsonShire, 1400 Chesterbrook Blvd., Wayne, PA, 19087, USA.
Merce CorreaÀrea de Psicobiologia, Campus de Riu Sec, Universitat Jaume I, Castelló, 12071, Spain.
John D SalamoneDepartment of Psychology, University of Connecticut, Storrs, CT, 06261-1020, USA. john.salamone@uconn.edu.
Universitat Jaume I · ESUniversity of Connecticut · USSaybrook University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleEffort-related motivational symptoms, such as anergia, psychomotor retardation, and fatigue, are an important aspect of depression and other disorders. Motivational symptoms are resistant to some treatments, including serotonin transport (SERT) inhibitors.

objectivesTests of effort-based choice using operant behavior tasks (e.g., concurrent lever pressing/ chow feeding tasks) can be used as animal models of motivational symptoms. Tests of effort-related choice allow animals to choose between high-effort actions that lead to more highly valued rewards vs. low-effort alternatives that lead to less valued rewards (i.e., less preferred or lower magnitude). Rats treated with the vesicular monoamine transport inhibitor tetrabenazine, or the cytokine interleukin-1β (IL-1β), which are associated with depressive symptoms in humans, can alter effort-related choice, reducing selection of the high effort alternative (lever pressing) while increasing intake of freely available chow.

methodsThe present studies focused upon the ability of lisdexamfetamine (LDX) to increase exertion of effort in rats responding on effort-based choice tasks under several different conditions.

resultsLDX attenuated the shift from fixed ratio 5 lever pressing to chow intake induced by tetrabenazine and IL-1β. In contrast, the SERT inhibitor s-citalopram failed to reverse the effects of tetrabenazine. When given in combination with tetrabenazine+s-citalopram, LDX significantly increased lever pressing output compared to tetrabenaine+citalopram alone. LDX also increased work output in rats responding on a progressive ratio/chow feeding choice task.

conclusionsLDX can increase work output in rats responding on effort-based choice tasks, which may have implications for understanding the neurochemistry of motivational symptoms in humans.

Indexed as

RewardAnimalsBehavior, AnimalChoice BehaviorCitalopramDrug InteractionsFeeding BehaviorLisdexamfetamine DimesylateMaleMotivationRatsRats, Sprague-DawleySelective Serotonin Reuptake InhibitorsCitalopramLisdexamfetamine DimesylateSelective Serotonin Reuptake InhibitorsBehavioral activationDecision makingDopamineFatigueMotivationSSRI

Identifiers

PMID26694811
OpenAlexW2196538331

What OpenQuestion holds

Textmetadata
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.