Evidence map›Paper›PMID 31653088›Full record

ArticleAnimals : an open access journal from MDPI2019

Horses Categorize Human Emotions Cross-Modally Based on Facial Expression and Non-Verbal Vocalizations.

Miléna Trösch, Florent Cuzol, Céline Parias, Ludovic Calandreau, Raymond Nowak, Léa Lansade

Abstract read
In one paragraph

Article in Animals : an open access journal from MDPI, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
–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

29 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  7. Article
  8. Review
  9. Social Isolation of Horses vs. Support Provided by a Human.Animals : an open access journal from MDPI · 2025
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  10. Article
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  19. Multimodal Communication in the Human-Cat Relationship: A Pilot Study.Animals : an open access journal from MDPI · 2023
    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

6 authors.

Miléna TröschINRA, PRC, CNRS, IFCE, Université de Tours, 37380 Nouzilly, France. milena.trosch@gmail.com.
Florent CuzolINRA, PRC, CNRS, IFCE, Université de Tours, 37380 Nouzilly, France. florent.cuzol@gmail.com.
Céline PariasINRA, PRC, CNRS, IFCE, Université de Tours, 37380 Nouzilly, France. celine.parias@inra.fr.
Ludovic CalandreauINRA, PRC, CNRS, IFCE, Université de Tours, 37380 Nouzilly, France. ludovic.calandreau@inra.fr.
Raymond NowakINRA, PRC, CNRS, IFCE, Université de Tours, 37380 Nouzilly, France. raymond.nowak@inra.fr.
Léa LansadeINRA, PRC, CNRS, IFCE, Université de Tours, 37380 Nouzilly, France. lea.lansade@inra.fr.

Funding

IFCE (Institut Français du Cheval et de l'Equitation) Cognition-équitation
6 · The paper itself

Abstract

Over the last few years, an increasing number of studies have aimed to gain more insight into the field of animal emotions. In particular, it is of interest to determine whether animals can cross-modally categorize the emotions of others. For domestic animals that share a close relationship with humans, we might wonder whether this cross-modal recognition of emotions extends to humans, as well. In this study, we tested whether horses could recognize human emotions and attribute the emotional valence of visual (facial expression) and vocal (non-verbal vocalization) stimuli to the same perceptual category. Two animated pictures of different facial expressions (anger and joy) were simultaneously presented to the horses, while a speaker played an emotional human non-verbal vocalization matching one of the two facial expressions. Horses looked at the picture that was incongruent with the vocalization more, probably because they were intrigued by the paradoxical combination. Moreover, horses reacted in accordance with the valence of the vocalization, both behaviorally and physiologically (heart rate). These results show that horses can cross-modally recognize human emotions and react emotionally to the emotional states of humans, assessed by non-verbal vocalizations.

Indexed as

emotionsEquus caballushuman-animal relationshipsocial cognition

Identifiers

PMID31653088
PMCPMC6912773

What OpenQuestion holds

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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.