Evidence map›Paper›PMID 25938515›Full record

ArticleExperimental and clinical psychopharmacology2015

Delay discounting of food by rhesus monkeys: Cocaine and food choice in isomorphic and allomorphic situations.

Sally L Huskinson, William L Woolverton, Leonard Green, Joel Myerson, Kevin B Freeman

Abstract read
In one paragraph

Article in Experimental and clinical psychopharmacology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing 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

25 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Review
  5. Dynamic inconsistency in great apes.Scientific reports · 2024
    Article
  6. Review
  7. Article
  8. Article
  9. Discounting of outcomes in which immediate gains are followed by delayed losses.Journal of the experimental analysis of behavior · 2023
    Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Review
  17. Article
  18. Article
  19. Review
  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.

Sally L HuskinsonDivision of Neurobiology and Behavior Research, Department of Psychiatry and Human Behavior, University of Mississippi Medical Center.
William L WoolvertonDivision of Neurobiology and Behavior Research, Department of Psychiatry and Human Behavior, University of Mississippi Medical Center.
Leonard GreenDepartment of Psychology, Washington University.
Joel MyersonDepartment of Psychology, Washington University.
Kevin B FreemanDivision of Neurobiology and Behavior Research, Department of Psychiatry and Human Behavior, University of Mississippi Medical Center.

Funding

Delay Discounting and the Choice to Take a DrugR01DA027666 · NIDA · UNIVERSITY OF MISSISSIPPI MED CTR · PI FREEMAN, KEVIN B. · 2010 to 2014
$1.4M
Unpredictable drug and non-drug alternatives as determinants of cocaine choiceF32DA037619 · NIDA · UNIVERSITY OF MISSISSIPPI MED CTR · PI HUSKINSON, SALLY · 2014 to 2016
$169k
NIDA NIH HHS F32 DA-037619NIDA NIH HHS F32 DA037619NIDA NIH HHS R01 DA-027666NIDA NIH HHS R01 DA027666
6 · The paper itself

Abstract

Research on delay discounting has focused largely on nondrug reinforcers in an isomorphic context in which choice is between alternatives that involve the same type of reinforcer. Less often, delay discounting has been studied with drug reinforcers in a more ecologically valid allomorphic context where choice is between alternatives involving different types of reinforcers. The present experiment is the first to examine discounting of drug and nondrug reinforcers in both isomorphic and allomorphic situations using a theoretical model (i.e., the hyperbolic discounting function) that allows for comparisons of discounting rates between reinforcer types and amounts. The goal of the current experiment was to examine discounting of a delayed, nondrug reinforcer (food) by male rhesus monkeys when the immediate alternative was either food (isomorphic situation) or cocaine (allomorphic situation). In addition, we sought to determine whether there was a magnitude effect with delayed food in the allomorphic situation. Choice of immediate food and immediate cocaine increased with amount and dose, respectively. Choice functions for immediate food and cocaine generally shifted leftward as delay increased. Compared to isomorphic situations in which food was the immediate alternative, delayed food was discounted more steeply in allomorphic situations where cocaine was the immediate alternative. Notably, discounting was not affected by the magnitude of the delayed reinforcer. These data indicate that how steeply a delayed nondrug reinforcer is discounted may depend more on the qualitative characteristics of the immediate reinforcer and less on the magnitude of the delayed one.

Indexed as

FoodAnimalsChoice BehaviorCocaineConditioning, OperantDelay DiscountingDopamine Uptake InhibitorsDose-Response Relationship, DrugFood PreferencesMacaca mulattaMaleReinforcement ScheduleSelf AdministrationTime FactorsCocaineDopamine Uptake Inhibitors

Identifiers

PMID25938515
PMCPMC4461530

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Registered trials

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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.