Evidence map›Paper›PMID 40881987›Full record

ArticleRoyal Society open science2025

Tonkean macaques do not prefer the helper or the hinderer in the hill paradigm.

Marie Hirel, Hélène Meunier, Hannes Rakoczy, Julia Fischer, Stefanie Keupp

Abstract read
In one paragraph

Article in Royal Society open science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. 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.

Marie HirelDepartment for Primate Cognition, Johann-Friedrich-Blumenbach Institute, Georg-August-Universität Göttingen, Göttingen, Niedersachsen, Germany.ORCID https://orcid.org/0000-0002-8985-1818
Hélène MeunierCentre de Primatologie de l'Université de Strasbourg, Niederhausbergen, France.ORCID https://orcid.org/0000-0001-8826-9896
Hannes RakoczyDepartment for Cognitive Developmental Psychology, Georg-Elias-Müller Institute for Psychology, Georg-August-Universität Göttingen, Göttingen, Niedersachsen, Germany.ORCID https://orcid.org/0000-0003-3296-0551
Julia FischerDepartment for Primate Cognition, Johann-Friedrich-Blumenbach Institute, Georg-August-Universität Göttingen, Göttingen, Niedersachsen, Germany.ORCID https://orcid.org/0000-0002-5807-0074
Stefanie KeuppDepartment for Primate Cognition, Johann-Friedrich-Blumenbach Institute, Georg-August-Universität Göttingen, Göttingen, Niedersachsen, Germany.ORCID https://orcid.org/0000-0002-5451-4256

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Evaluating others' prosocial tendencies can benefit individuals by allowing them to interact with prosocial individuals and avoid antisocial ones. The ontogeny of humans' strong prosocial preference has been widely investigated using the hill paradigm. Infants' preference for helper over hinderer agents was measured after they watched a scene in which the helper agent pushed a climber up a hill while the hinderer agent pushed the climber down the hill. Bonobos tested with the hill paradigm preferred the hinderer over the helper, contrasting previous findings for other nonhuman primates. In this study, we explored whether another primate species would exhibit a hinderer preference using the same procedure as the one used with bonobos. Tonkean macaques (

Indexed as

animated agentprimatesprosocial preferencesocial evaluationthird-party observation

Identifiers

PMID40881987
PMCPMC12381498

What OpenQuestion holds

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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.