Evidence map›Paper›PMID 21920973›Full record

ArticleProceedings. Biological sciences2012

Social laughter is correlated with an elevated pain threshold.

R I M Dunbar, Rebecca Baron, Anna Frangou, Eiluned Pearce, Edwin J C van Leeuwen, Julie Stow, Giselle Partridge, Ian MacDonald, Vincent Barra, Mark van Vugt

Open access · greenAbstract read
In one paragraph

Article in Proceedings. Biological sciences, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed, 2 pooled it
14.3field-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

69 citing papers in PubMed, 2 syntheses or guidelines pooled it, 221 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Trial
  6. Laughter's influence on the intimacy of self-disclosure.Human nature (Hawthorne, N.Y.) · 2015
    Trial
  7. Article
  8. Article
  9. Article
  10. Article
  11. Why friendship and loneliness affect our health.Annals of the New York Academy of Sciences · 2025
    Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Evolution of laughter from play.Communicative & integrative biology · 2024
    Article
  17. Article
  18. Article
  19. Tendency to laugh is a stable trait: findings from a round-robin conversation study.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022
    Article
  20. Laughter, play faces and mimicry in animals: evolution and social functions.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022
    Review

9 more citing papers are in PubMed but not listed here.

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

10 authors at 5 institutions in 3 countries.

R I M DunbarBritish Academy Centenary Research Project, University of Oxford, Oxford, UK. robin.dunbar@anthro.ox.ac.uk
Rebecca Baron
Anna Frangou
Eiluned Pearce
Edwin J C van Leeuwen
Julie Stow
Giselle Partridge
Ian MacDonald
Vincent Barra
Mark van Vugt
University of Liverpool · GBUniversity of Oxford · GBBinghamton University · USBritish Academy · GBVrije Universiteit Amsterdam · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although laughter forms an important part of human non-verbal communication, it has received rather less attention than it deserves in both the experimental and the observational literatures. Relaxed social (Duchenne) laughter is associated with feelings of wellbeing and heightened affect, a proximate explanation for which might be the release of endorphins. We tested this hypothesis in a series of six experimental studies in both the laboratory (watching videos) and naturalistic contexts (watching stage performances), using change in pain threshold as an assay for endorphin release. The results show that pain thresholds are significantly higher after laughter than in the control condition. This pain-tolerance effect is due to laughter itself and not simply due to a change in positive affect. We suggest that laughter, through an endorphin-mediated opiate effect, may play a crucial role in social bonding.

Indexed as

LaughterSocial BehaviorEndorphinsFemaleHumansMalePain ThresholdEndorphins

Identifiers

PMID21920973
PMCPMC3267132
OpenAlexW2129084631

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.