Evidence map›Paper›PMID 25732039›Full record

ArticleeLife2015

A social chemosignaling function for human handshaking.

Idan Frumin, Ofer Perl, Yaara Endevelt-Shapira, Ami Eisen, Neetai Eshel, Iris Heller, Maya Shemesh, Aharon Ravia, Lee Sela, Anat Arzi and 1 more

Abstract read
In one paragraph

Article in eLife, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing 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

28 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Past, Present, and Future of Human Chemical Communication Research.Perspectives on psychological science : a journal of the Association for Psychological Science · 2025
    Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. The role of the microbiome in the neurobiology of social behaviour.Biological reviews of the Cambridge Philosophical Society · 2020
    Article
  13. Interdisciplinary challenges for elucidating human olfactory attractiveness.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020
    Review
  14. Reproducible research into human chemical communication by cues and pheromones: learning from psychology's renaissance.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020
    Review
  15. Review
  16. Human olfactory communication: current challenges and future prospects.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020
    Article
  17. Are humans constantly but subconsciously smelling themselves?Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020
    Review
  18. Article
  19. Article
  20. 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

11 authors.

Idan FruminDepartment of Neurobiology, Weizmann Institute of Science, Rehovot, Israel.
Ofer PerlDepartment of Neurobiology, Weizmann Institute of Science, Rehovot, Israel.
Yaara Endevelt-ShapiraDepartment of Neurobiology, Weizmann Institute of Science, Rehovot, Israel.
Ami EisenDepartment of Neurobiology, Weizmann Institute of Science, Rehovot, Israel.
Neetai EshelDepartment of Neurobiology, Weizmann Institute of Science, Rehovot, Israel.
Iris HellerDepartment of Neurobiology, Weizmann Institute of Science, Rehovot, Israel.
Maya ShemeshDepartment of Neurobiology, Weizmann Institute of Science, Rehovot, Israel.
Aharon RaviaDepartment of Neurobiology, Weizmann Institute of Science, Rehovot, Israel.
Lee SelaDepartment of Neurobiology, Weizmann Institute of Science, Rehovot, Israel.
Anat ArziDepartment of Neurobiology, Weizmann Institute of Science, Rehovot, Israel.
Noam SobelDepartment of Neurobiology, Weizmann Institute of Science, Rehovot, Israel.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Social chemosignaling is a part of human behavior, but how chemosignals transfer from one individual to another is unknown. In turn, humans greet each other with handshakes, but the functional antecedents of this behavior remain unclear. To ask whether handshakes are used to sample conspecific social chemosignals, we covertly filmed 271 subjects within a structured greeting event either with or without a handshake. We found that humans often sniff their own hands, and selectively increase this behavior after handshake. After handshakes within gender, subjects increased sniffing of their own right shaking hand by more than 100%. In contrast, after handshakes across gender, subjects increased sniffing of their own left non-shaking hand by more than 100%. Tainting participants with unnoticed odors significantly altered the effects, thus verifying their olfactory nature. Thus, handshaking may functionally serve active yet subliminal social chemosignaling, which likely plays a large role in ongoing human behavior.

Indexed as

HandSignal TransductionSocial BehaviorAdultFemaleHumansMaleOdorantsSmellhandshakinghumanneurosciencepheromonessniffingsocial chemosignaling

Identifiers

PMID25732039
PMCPMC4345842

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.