Pet-directed speech improves horses’ attention toward humans.
Abstract: In a recent experiment, we showed that horses are sensitive to pet-directed speech (PDS), a kind of speech used to talk to companion animals that is characterized by high pitch and wide pitch variations. When talked to in PDS rather than adult-directed speech (ADS), horses reacted more favorably during grooming and in a pointing task. However, the mechanism behind their response remains unclear: does PDS draw horses' attention and arouse them, or does it make their emotional state more positive? In this study, we used an innovative paradigm in which female horses watched videos of humans speaking in PDS or ADS to better understand this phenomenon. Horses reacted differently to the videos of PDS and ADS: they were significantly more attentive and their heart rates increased significantly more during PDS than during ADS. We found no difference in the expressions of negative or positive emotional states during PDS and ADS videos. Thus, we confirm that horses' perception of humans can be studied by means of video projections, and we conclude that PDS attracts attention and has an arousing effect in horses, with consequences on the use of PDS in daily interactions with them.
© 2022. The Author(s).
Publication Date: 2022-03-11 PubMed ID: 35277552PubMed Central: PMC8917202DOI: 10.1038/s41598-022-08109-zGoogle Scholar: Lookup
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- Research Support
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Summary
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The research article demonstrates how pet-directed speech (PDS), characterized by high pitch and wide pitch variations, garners more attention from horses compared to adult-directed speech (ADS). This has implications on daily human-horse interactions.
Experiment Methodology
- The study involved an innovative approach of exposing female horses to videos of humans communicating either in PDS or ADS. The objective was to deepen the understanding of the horses’ response to PDS.
- Without delving into the technical execution, the study expounds on assessing and contrasting horses’ reactions to both forms of communication.
Results and Findings
- In comparing the horse’s reactions, researchers noted that horses were significantly more attentive and showcased greater heart rate increases when exposed to PDS, as opposed to ADS. These physical markers signified the arousal of the horses due to PDS and their enhanced attention towards it.
- Despite careful evaluation, researchers did not find any difference in the manifestation of negative or positive emotional states in the horses when exposed to PDS or ADS videos. This indicates that while PDS seems more stimulating, it does not necessarily affect the emotional state of the horses in a noticeably positive or negative way.
Conclusion and Implications
- This research validates the effectiveness of using video projections as a tool for studying horses’ perception of humans. The findings from this study can help shape the way humans communicate with horses and potentially have far-reaching consequences in the field of animal training and human-animal communication.
- It also suggests that using PDS can improve human-horse interactions by enhancing the attention and arousal of horses. Though it does not expressly affect their emotional state, it does make them more attentive and responsive, potentially facilitating more efficient communication or training routines.
Cite This Article
APA
Jardat P, Calandreau L, Ferreira V, Gouyet C, Parias C, Reigner F, Lansade L.
(2022).
Pet-directed speech improves horses’ attention toward humans.
Sci Rep, 12(1), 4297.
https://doi.org/10.1038/s41598-022-08109-z Publication
Researcher Affiliations
- CNRS, IFCE, INRAE, University of Tours, PRC, 37380, Nouzilly, France. plotine.jardat@gmail.com.
- CNRS, IFCE, INRAE, University of Tours, PRC, 37380, Nouzilly, France.
- CNRS, IFCE, INRAE, University of Tours, PRC, 37380, Nouzilly, France.
- Department of Physics, Chemistry and Biology, IFM Biology, Linköping University, 581 83 15, Linköping, Sweden.
- CNRS, IFCE, INRAE, University of Tours, PRC, 37380, Nouzilly, France.
- CNRS, IFCE, INRAE, University of Tours, PRC, 37380, Nouzilly, France.
- UEPAO, INRAE, 37380, Nouzilly, France.
- CNRS, IFCE, INRAE, University of Tours, PRC, 37380, Nouzilly, France. lea.lansade@inrae.fr.
MeSH Terms
- Animals
- Attention / physiology
- Emotions
- Female
- Grooming
- Horses
- Humans
- Speech
- Wakefulness
Conflict of Interest Statement
The authors declare no competing interests.
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Citations
This article has been cited 3 times.- Gergely A, Gábor A, Gácsi M, Kis A, Czeibert K, Topál J, Andics A. Dog brains are sensitive to infant- and dog-directed prosody.. Commun Biol 2023 Aug 18;6(1):859.
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- Jardat P, Ringhofer M, Yamamoto S, Gouyet C, Degrande R, Parias C, Reigner F, Calandreau L, Lansade L. Horses form cross-modal representations of adults and children.. Anim Cogn 2023 Mar;26(2):369-377.
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