Cross-modal perception of human emotion in domestic horses (Equus caballus).
Cross-modal perception of human emotion in domestic horses (Equus caballus).
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DOI：
10.1038/s41598-018-26892-6
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发表时间：
2018-06-21
影响因子：
4.6
通讯作者：
Hasegawa T
中科院分区：
文献类型：
--
作者：
Nakamura K;Takimoto-Inose A;Hasegawa T
人类在历史上驯养过许多种动物。狗和马作为合作伙伴与人类有着特别密切的关系。然而，与狗相比，对马的认知进行的科学研究较少。研究表明，马可以跨模态区分人类的面部表情，并识别熟悉的人，这表明它们也可以跨模态区分人类的情绪。在本研究中，我们使用的期望违背的方法来调查是否跨模态感知人类的情绪。研究人员在一个屏幕上向马展示了一张人类面部表情的图片，然后它们听到了屏幕前扬声器发出的人类声音。在一致条件下，视觉和听觉刺激的情绪值相同，在不一致条件下，视觉和听觉刺激的情绪值不同。当马听到管理员的声音时，它们在不一致条件下比在一致条件下看说话者的时间要长得多，而当它们听到陌生人的声音时，它们看说话者的时间却没有长。此外，他们在不一致条件下对声音的反应明显比一致条件下更快。据我们所知，这是第一项研究表明马匹可以跨模式识别其看护者和陌生人的情绪状态。
Humans have domesticated many kinds of animals in their history. Dogs and horses have particularly close relationships with humans as cooperative partners. However, fewer scientific studies have been conducted on cognition in horses compared to dogs. Studies have shown that horses cross-modally distinguish human facial expressions and recognize familiar people, which suggests that they also cross-modally distinguish human emotions. In the present study, we used the expectancy violation method to investigate whether horses cross-modally perceive human emotions. Horses were shown a picture of a human facial expression on a screen, and they then heard a human voice from the speaker before the screen. The emotional values of the visual and auditory stimuli were the same in the congruent condition and different in the incongruent condition. Horses looked at the speaker significantly longer in the incongruent condition than in the congruent condition when they heard their caretaker’s voices but not when they heard the stranger voice. In addition, they responded significantly more quickly to the voice in the incongruent condition than in the congruent one. To the best of our knowledge, this is the first study to show that horses cross-modally recognized the emotional states of their caretakers and strangers.
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