Perception of emotional valence in horse whinnies

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• 作者：Elodie F. Briefer ; Roi Mandel ; Anne-Laure Maigrot…
• 关键词：Emotional contagion ; Equus caballus ; Emotion expression ; Familiarity ; Playbacks ; Vocalisations
• 刊名：Frontiers in Zoology
• 出版年：2017
• 出版时间：December 2017
• 年：2017
• 卷：14
• 期：1
• 全文大小：500KB
• 刊物主题：Zoology; Applied Ecology; Biodiversity; Animal Physiology;
• 出版者：BioMed Central
• ISSN：1742-9994
• 卷排序：14

文摘

BackgroundNon-human animals often produce different types of vocalisations in negative and positive contexts (i.e. different valence), similar to humans, in which crying is associated with negative emotions and laughter is associated with positive ones. However, some types of vocalisations (e.g. contact calls, human speech) can be produced in both negative and positive contexts, and changes in valence are only accompanied by slight structural differences. Although such acoustically graded signals associated with opposite valence have been highlighted in some species, it is not known if conspecifics discriminate them, and if contagion of emotional valence occurs as a result. We tested whether domestic horses perceive, and are affected by, the emotional valence of whinnies produced by both familiar and unfamiliar conspecifics. We measured physiological and behavioural reactions to whinnies recorded during emotionally negative (social separation) and positive (social reunion) situations.