Evidence map›Paper›PMID 33423631›Full record

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

Reduced risk-seeking in chimpanzees in a zero-outcome game.

Stefanie Keupp, Sebastian Grueneisen, Elliot A Ludvig, Felix Warneken, Alicia P Melis

Abstract read
In one paragraph

Article 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 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

  1. Article
  2. Article
  3. Contextual influences on risk-taking in children and adults.Frontiers in behavioral neuroscience · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Economic behaviours among non-human primates.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021
    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.

Stefanie KeuppDepartment of Psychology, University of Warwick, University Road, Coventry CV4 7AL, UK.
Sebastian GrueneisenDepartment of Psychology, University of Michigan, 530 Church Street, Ann Arbor, MI 48109-1043, USA.
Elliot A LudvigDepartment of Psychology, University of Warwick, University Road, Coventry CV4 7AL, UK.
Felix WarnekenDepartment of Psychology, University of Michigan, 530 Church Street, Ann Arbor, MI 48109-1043, USA.
Alicia P MelisExperimental Psychology, University College London, 26 Bedford Way, London WC1H 0AP, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A key component of economic decisions is the integration of information about reward outcomes and probabilities in selecting between competing options. In many species, risky choice is influenced by the magnitude of available outcomes, probability of success and the possibility of extreme outcomes. Chimpanzees are generally regarded to be risk-seeking. In this study, we examined two aspects of chimpanzees' risk preferences: first, whether setting the value of the non-preferred outcome of a risky option to zero changes chimpanzees' risk preferences, and second, whether individual risk preferences are stable across two different measures. Across two experiments, we found chimpanzees (

Indexed as

Choice BehaviorRewardRisk-TakingAnimalsFemaleGames, ExperimentalIndividualityMalePan troglodyteschimpanzeesindividual differencesriskzero outcome

Identifiers

PMID33423631
PMCPMC7815432

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.