Evidence map›Paper›PMID 30279565›Full record

ArticleScientific reports2018

Facial expression and oxytocin as possible markers of positive emotions in horses.

Léa Lansade, Raymond Nowak, Anne-Lyse Lainé, Christine Leterrier, Coralie Bonneau, Céline Parias, Aline Bertin

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
12.0field-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

41 citing papers in PubMed, 111 citations in OpenAlex.

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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

7 authors at 1 institution in 2 countries.

Léa LansadePRC, INRA, CNRS, IFCE, University Tours, 37380, Nouzilly, France. lea.lansade@inra.fr.ORCID http://orcid.org/0000-0002-4185-9714
Raymond NowakPRC, INRA, CNRS, IFCE, University Tours, 37380, Nouzilly, France.
Anne-Lyse LainéPRC, INRA, CNRS, IFCE, University Tours, 37380, Nouzilly, France.
Christine LeterrierPRC, INRA, CNRS, IFCE, University Tours, 37380, Nouzilly, France.
Coralie BonneauPRC, INRA, CNRS, IFCE, University Tours, 37380, Nouzilly, France.
Céline PariasPRC, INRA, CNRS, IFCE, University Tours, 37380, Nouzilly, France.
Aline BertinPRC, INRA, CNRS, IFCE, University Tours, 37380, Nouzilly, France.
Université de Tours · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Behavioural and physiological markers of discrete positive emotions remain little investigated in animals. To characterise new markers in horses, we used tactile stimulations to induce emotional situation of contrasting valence. In the Gentle grooming group (G, N = 13) horses were gently groomed during 11 sessions on the body areas they appreciated the most. Horses in the Standard grooming group (S, N = 14) were groomed using a fixed procedure, reported to induce avoidance reactions in some horses. At session 11, G horses expressed significantly more contact-seeking behaviours than S horses, which expressed significantly more avoidance behaviours. This result suggests positive emotions in G horses and negative emotions in S horses. Blood cortisol, oxytocin, heart rate and heart rate variability never differed between before and after the grooming session. However, after the 11 sessions, basal oxytocin levels were lower in the G than in the S group. This difference was unexpected, but supports studies showing that a low level of basal oxytocin could be a marker of better well-being. Analyses of facial expressions during grooming revealed significant differences between groups. These expressions appear to be more sensitive than behavioural indicators because they alone enabled differentiating emotions according to the group when horses were re-exposed to neutral grooming one year after the treatment.

Indexed as

EmotionsAnimalsHorsesOxytocinOxytocin

Identifiers

PMID30279565
PMCPMC6168541
OpenAlexW2892539997

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.