Garrano Horses Perceive Letters of the Alphabet on a Touchscreen System: A Pilot Study

This study aimed to use a computer-controlled touchscreen system to examine visual discrimination in Garrano horses (<i>Equus caballus</i>), an endangered breed of pony belonging to the Iberian horse family. This pilot study focused on the perceptual similarity among letters of the alpha...

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Main Authors: Clara-Lynn Schubert, Barbara Ryckewaert, Carlos Pereira, Tetsuro Matsuzawa
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/12/24/3514
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author Clara-Lynn Schubert
Barbara Ryckewaert
Carlos Pereira
Tetsuro Matsuzawa
author_facet Clara-Lynn Schubert
Barbara Ryckewaert
Carlos Pereira
Tetsuro Matsuzawa
author_sort Clara-Lynn Schubert
collection DOAJ
description This study aimed to use a computer-controlled touchscreen system to examine visual discrimination in Garrano horses (<i>Equus caballus</i>), an endangered breed of pony belonging to the Iberian horse family. This pilot study focused on the perceptual similarity among letters of the alphabet. We tested five horses in a one-male unit (OMU) living permanently in a semi-free enclosure near their natural habitat in Serra d’Arga, northern Portugal. Horses were trained to nose-touch black circles that appeared on the screen. Then, they were tested for discrimination of five letters of the Latin alphabet in Arial font, namely O, B, V, Z, and X, using a two-choice discrimination task. The confusion matrix of letter pairs was used to show the MDS and to identify the relative contribution of shape features. The results showed perceptual similarities among letters with curvatures pitted against those of straight lines. Shape perception in horses seems to share features with that of humans and other animals living in different niches. The touchscreen system proved to be an objective and innovative way of studying cognition in the socially organized group of horses. The automated system can promote the welfare of captive horses by maximizing their freedom of movement.
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spelling doaj.art-064dd9095f294a88a766e0af22877ce02023-11-24T12:51:02ZengMDPI AGAnimals2076-26152022-12-011224351410.3390/ani12243514Garrano Horses Perceive Letters of the Alphabet on a Touchscreen System: A Pilot StudyClara-Lynn Schubert0Barbara Ryckewaert1Carlos Pereira2Tetsuro Matsuzawa3Department of Cognitive and Behavioral Neurosciences, Faculty of Science and Engineering of Sorbonne University, CEDEX 05, 75005 Paris, FranceLaboratory «Scenes of the World, Creation, Critical Knowledge», Doctoral School of Aesthetics, Sciences and Technology of the Arts, University of Paris 8 Vincennes, CEDEX 02, 93526 Saint-Denis, FranceDepartment of LEA (Applied Foreign Languages), University of Paris 3 Sorbonne Nouvelle, CEDEX 05, 75230 Paris, FranceDivision of Humanities and Social Sciences, California Institute of Technology, Pasadena, CA 91125, USAThis study aimed to use a computer-controlled touchscreen system to examine visual discrimination in Garrano horses (<i>Equus caballus</i>), an endangered breed of pony belonging to the Iberian horse family. This pilot study focused on the perceptual similarity among letters of the alphabet. We tested five horses in a one-male unit (OMU) living permanently in a semi-free enclosure near their natural habitat in Serra d’Arga, northern Portugal. Horses were trained to nose-touch black circles that appeared on the screen. Then, they were tested for discrimination of five letters of the Latin alphabet in Arial font, namely O, B, V, Z, and X, using a two-choice discrimination task. The confusion matrix of letter pairs was used to show the MDS and to identify the relative contribution of shape features. The results showed perceptual similarities among letters with curvatures pitted against those of straight lines. Shape perception in horses seems to share features with that of humans and other animals living in different niches. The touchscreen system proved to be an objective and innovative way of studying cognition in the socially organized group of horses. The automated system can promote the welfare of captive horses by maximizing their freedom of movement.https://www.mdpi.com/2076-2615/12/24/3514horse cognitionletters of the alphabetshape perceptiontouchscreen systemoperant conditioning: shapingone-male unit
spellingShingle Clara-Lynn Schubert
Barbara Ryckewaert
Carlos Pereira
Tetsuro Matsuzawa
Garrano Horses Perceive Letters of the Alphabet on a Touchscreen System: A Pilot Study
Animals
horse cognition
letters of the alphabet
shape perception
touchscreen system
operant conditioning: shaping
one-male unit
title Garrano Horses Perceive Letters of the Alphabet on a Touchscreen System: A Pilot Study
title_full Garrano Horses Perceive Letters of the Alphabet on a Touchscreen System: A Pilot Study
title_fullStr Garrano Horses Perceive Letters of the Alphabet on a Touchscreen System: A Pilot Study
title_full_unstemmed Garrano Horses Perceive Letters of the Alphabet on a Touchscreen System: A Pilot Study
title_short Garrano Horses Perceive Letters of the Alphabet on a Touchscreen System: A Pilot Study
title_sort garrano horses perceive letters of the alphabet on a touchscreen system a pilot study
topic horse cognition
letters of the alphabet
shape perception
touchscreen system
operant conditioning: shaping
one-male unit
url https://www.mdpi.com/2076-2615/12/24/3514
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AT carlospereira garranohorsesperceivelettersofthealphabetonatouchscreensystemapilotstudy
AT tetsuromatsuzawa garranohorsesperceivelettersofthealphabetonatouchscreensystemapilotstudy