Evidence map›Paper›PMID 32792526›Full record

ArticleTranslational psychiatry2020

Empirical validation of a touchscreen probabilistic reward task in rats.

Brian D Kangas, Lisa M Wooldridge, Oanh T Luc, Jack Bergman, Diego A Pizzagalli

Open access · goldAbstract read
In one paragraph

Article in Translational psychiatry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
2.4field-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

38 citing papers in PubMed, 45 citations in OpenAlex.

  1. Article
  2. Psychedelics produce enduring enhancement of reward responsiveness in male rats.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Article
  3. Article
  4. Review
  5. Article
  6. ENX-104: a selective and potent DNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Article
  7. Review
  8. Article
  9. Reverse Translation.Perspectives on behavior science · 2026
    Article
  10. Review
  11. Review
  12. Beta and High Gamma Oscillations in the Cortico-striatal Network Reflect Reward Certainty on a Probabilistic Reversal Learning Task.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  13. Article
  14. Molecular design of a therapeutic LSD analogue with reduced hallucinogenic potential.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

5 authors at 2 institutions in 1 country.

Brian D KangasMcLean Hospital, Belmont, MA, USA. bkangas@mclean.harvard.edu.ORCID http://orcid.org/0000-0002-4597-9801
Lisa M WooldridgeMcLean Hospital, Belmont, MA, USA.
Oanh T LucMcLean Hospital, Belmont, MA, USA.
Jack BergmanMcLean Hospital, Belmont, MA, USA.
Diego A PizzagalliMcLean Hospital, Belmont, MA, USA.ORCID http://orcid.org/0000-0002-7772-1143
Harvard University · USMcLean Hospital · US

Funding

Neuroimaging Studies of Reward Processing in DepressionR37MH068376 · NIMH · UNIVERSITY OF CALIFORNIA-IRVINE · PI Diego A Pizzagalli · 2016 to 2026
$7.4M
Multi level Analysis of Positive Valence Systems Across Mood DisordersR01MH101521 · NIMH · MCLEAN HOSPITAL · PI PIZZAGALLI, DIEGO A · 2013 to 2016
$2.1M
Novel Cross-Species Neurophysiological Assays of Reward and Cognitive DomainsUH2MH109334 · NIMH · MCLEAN HOSPITAL · PI PIZZAGALLI, DIEGO A · 2016 to 2017
$1.5M
Drug Self Administration and Withdrawal Effects on Cognitive FunctionK01DA035974 · NIDA · MCLEAN HOSPITAL · PI KANGAS, BRIAN D. · 2013 to 2017
$743k
NIDA NIH HHS K01 DA035974NIMH NIH HHS R01 MH101521NIMH NIH HHS R37 MH068376NIMH NIH HHS UH2 MH109334U.S. Department of Health & Human Services | NIH | National Institute of Mental Health (NIMH) R01-MH101521U.S. Department of Health & Human Services | NIH | National Institute of Mental Health (NIMH) R37-MH068376U.S. Department of Health & Human Services | NIH | National Institute of Mental Health (NIMH) UH2-MH109334U.S. Department of Health & Human Services | NIH | National Institute on Drug Abuse (NIDA) K01-DA035974
6 · The paper itself

Abstract

Anhedonia, the loss of pleasure from previously rewarding activities, is implicated in several neuropsychiatric conditions, including major depressive disorder (MDD). In order to accelerate drug development for mood disorders, quantitative approaches are needed to objectively measure responsiveness to reward as a means to identify deficits. One such approach, the probabilistic reward task (PRT), uses visual discrimination methodology to quantify reward learning. In this computerized task, humans make visual discriminations, and probabilistic contingencies are arranged such that correct responses to one alternative are rewarded more often (rich) than correct responses to the other (lean). Healthy participants consistently develop a response bias in favor of the rich alternative. However, participants with MDD typically exhibit lower response biases, and this blunting correlates with current and future anhedonia. The present studies validated a touchscreen-based PRT in rodents with formal and functional similarity to the human task. First, rats were trained to discriminate between two lines that differed in length. Next, parametric manipulations of probabilistic contingencies, line-length stimuli, and drug treatment (amphetamine, 0.32-3.2 mg/kg; scopolamine, 0.1-1.0 mg/kg; oxycodone, 0.1-1.0 mg/kg) on response bias were evaluated. Results demonstrated orderly shifts in bias and discriminability that varied as a function of, respectively, the asymmetry of rich/lean probabilities and disparity in line lengths. Drugs that enhance reward responsiveness (amphetamine and scopolamine, but not oxycodone) increased bias, verifying pharmacological task sensitivity. Finally, performance outcomes under optimized conditions were replicated in female rats. Collectively, the touchscreen-based rodent PRT appears to have high preclinical value as a quantitative assay of reward learning.

Indexed as

Major Depressive DisorderAmphetamineAnhedoniaAnimalsFemaleLearningRatsRewardAmphetamine

Identifiers

PMID32792526
PMCPMC7426406
OpenAlexW3048509239

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.