Evidence map›Paper›PMID 36126662›Full record

ReviewPhilosophical transactions of the Royal Society of London. Series B, Biological sciences2022

Laughter, play faces and mimicry in animals: evolution and social functions.

Marina Davila-Ross, Elisabetta Palagi

Open access · hybridAbstract readReview
In one paragraph

Review in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
14.0field-weighted citation impact, top 1% 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

17 citing papers in PubMed, 68 citations in OpenAlex.

  1. The development of play face mimicry: comparative insights from human infants, adults and orangutans.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2026
    Article
  2. Article
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  5. Individual variation in animal communication: from species averages to unique voices.Biological reviews of the Cambridge Philosophical Society · 2025
    Review
  6. Article
  7. Article
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  13. Review
  14. Article
  15. Evolution of laughter from play.Communicative & integrative biology · 2024
    Article
  16. Cracking the laugh code: laughter through the lens of biology, psychology and neuroscience.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022
    Article
  17. The naturalistic approach to laughter in humans and other animals: towards a unified theory.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022
    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 at 2 institutions in 3 countries.

Marina Davila-RossPsychology Department, King Henry Building, University of Portsmouth, Portsmouth PO1 2DY, UK.ORCID 0000-0002-5768-0217
Elisabetta PalagiDepartment of Biology, Ethology Unit, University of Pisa, Via A. Volta 6, 56126, Pisa, Italy.ORCID 0000-0002-2038-4596
Henry Royce Institute · GBUniversity of Pisa · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Human laughter and laugh faces show similarities in morphology and function with animal playful expressions. To better understand primordial uses and effects of human laughter and laugh faces, it is important to examine these positive expressions in animals from both homologous and analogous systems. Phylogenetic research on hominids provided empirical evidence on shared ancestry across these emotional expressions, including human laughter and laugh faces. In addition, playful expressions of animals, in general, arguably have a key role in the development of social cognitive skills, a role that may help explain their polyphyletic history. The present work examines the evolution and function of playful expressions in primates and other animals. As part of this effort, we also coded for muscle activations of six carnivore taxa with regard to their open-mouth faces of play; our findings provide evidence that these carnivore expressions are homologues of primate open-mouth faces of play. Furthermore, our work discusses how the expressions of animal play may communicate positive emotions to conspecifics and how the motor resonance of these expressions increases affiliation and bonding between the subjects, resembling in a number of ways the important social-emotional effects that laughter and laugh faces have in humans. This article is part of the theme issue 'Cracking the laugh code: laughter through the lens of biology, psychology and neuroscience'.

Indexed as

HominidaeLaughterAnimalsEmotionsFaceHumansPhylogenyanimal playevolutionlaugh faceslaughtermimicryplay expressions

Identifiers

PMID36126662
PMCPMC9489294
OpenAlexW4296780094

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.