Evidence map›Paper›PMID 33423633›Full record

ReviewPhilosophical transactions of the Royal Society of London. Series B, Biological sciences2021

Non-human primate token use shows possibilities but also limitations for establishing a form of currency.

Michael J Beran, Audrey E Parrish

Abstract readReview
In one paragraph

Review in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed.

  1. Computational Mechanisms Underlying Motivation to Earn Symbolic Reinforcers.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  2. Article
  3. Review
  4. Article
  5. Economic behaviours among non-human primates.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021
    Article
  6. What behaviour in economic games tells us about the evolution of non-human species' economic decision-making behaviour.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021
    Review
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

2 authors.

Michael J BeranDepartment of Psychology and Language Research Center, Georgia State University, Atlanta, GA 30302, USA.
Audrey E ParrishDepartment of Psychology, The Citadel, Charleston, SC 29409, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Non-human primates evaluate choices based on quantitative information and subjective valuation of options. Non-human primates can learn to value tokens as placeholders for primary rewards (such as food). With those tokens established as a potential form of 'currency', it is then possible to examine how they respond to opportunities to earn and use tokens in ways such as accumulating tokens or exchanging tokens with each other or with human experimenters to gain primary rewards. Sometimes, individuals make efficient and beneficial choices to obtain tokens and then exchange them at the right moments to gain optimal reward. Sometimes, they even accumulate such rewards through extended delay of gratification, or through other exchange-based interactions. Thus, non-human primates are capable of associating value to arbitrary tokens that may function as currency-like stimuli, but there also are strong limitations on how non-human primates can integrate such tokens into choice situations or use such tokens to fully 'symbolize' economic decision-making. These limitations are important to acknowledge when considering the evolutionary emergence of currency use in our species. This article is part of the theme issue 'Existence and prevalence of economic behaviours among non-human primates'.

Indexed as

Choice BehaviorLearningRewardAnimalsBiological EvolutionCebinaeMacacaPan troglodytescurrencyexchangeprimatesquantity judgmentself-controltokens

Identifiers

PMID33423633
PMCPMC7815425

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.