Evidence map›Paper›PMID 33927315›Full record

ArticleScientific reports2021

Shorter headed dogs, visually cooperative breeds, younger and playful dogs form eye contact faster with an unfamiliar human.

Zsófia Bognár, Dóra Szabó, Alexandra Deés, Enikő Kubinyi

Abstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing 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

43 citing papers in PubMed.

  1. Review
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  4. The Role of Olfaction in Dogs: Evolution, Biology, and Human-Oriented Work.Animals : an open access journal from MDPI · 2026
    Review
  5. Article
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  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Italians Can Resist Everything, Except Flat-Faced Dogs!Animals : an open access journal from MDPI · 2025
    Article
  15. Article
  16. Article
  17. 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

4 authors.

Zsófia BognárSenior Family Dog Project, Department of Ethology, Eötvös Loránd University, Budapest, Hungary. bognarzsof@gmail.com.
Dóra SzabóSenior Family Dog Project, Department of Ethology, Eötvös Loránd University, Budapest, Hungary.
Alexandra DeésSenior Family Dog Project, Department of Ethology, Eötvös Loránd University, Budapest, Hungary.
Enikő KubinyiSenior Family Dog Project, Department of Ethology, Eötvös Loránd University, Budapest, Hungary.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Forming eye contact is important in dog-human communication. In this study we measured what factors affect dogs' propensity for forming eye contact with an experimenter. We investigated the effect of [1] cephalic index (head shape's metric, indicator of higher visual acuity at the centre of the visual field), [2] breed function (visual cooperativeness), [3] age and [4] playfulness with strangers in 125 companion dogs. Cephalic index was measured individually and analysed as a continuous variable. Results showed that [1] dogs with a higher cephalic index (shorter head) established eye contact faster. Since cephalic index is highly variable even within a breed, using artificial head shape groups or breed average cephalic index values is not recommended. [2] Breed function also affected dogs' performance: cooperative breeds and mongrels established eye contact faster than dogs from non-cooperative breeds. [3] Younger dogs formed eye contact faster than older ones. [4] More playful dogs formed eye contact faster. Our results suggest that several factors affect dogs' interspecific attention, and therefore their visual communication ability.

Indexed as

Behavior, AnimalHuman-Animal InteractionNonverbal CommunicationAnimalsAttentionCooperative BehaviorDogsHeadPetsPlay and Playthings

Identifiers

PMID33927315
PMCPMC8084920

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Registered trials

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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.