以往的一些实验已经间接地表明动物们也具有同情心。科学家发现,老鼠和猴子会放弃食物,以防自己受到电击而危害同伴。类似的还有大猩猩,它们会在发生争斗后彼此安慰。然而这些实验和观察都只能证明同物种的动物相互之间拥有感受痛楚的能力。伦敦金史密斯大学的黛博拉?科斯坦斯与詹妮弗?梅耶正在着手研究狗,看它们能否察觉人类的情绪状态。
To do this, Dr Custance and Ms Mayer conducted an experiment to study the response of dogs when a nearby human suddenly began to cry. The researchers knew that interpreting responses would be difficult, since dogs tend to whine, nuzzle, lick, lay their heads in laps and fetch toys for people in distress. Although such actions hint at a dog wishing to offer comfort, they could also be signs of curiosity, or suggest that a dog is simply distressed by seeing its master upset.
为了研究这个问题,科斯坦斯博士与梅耶女士进行了一项试验。他们将狗安排在一个人身边,观察狗在此人突然开始哭泣时的反应。他们深知想要解读狗的反应是十分困难的,因为狗在这种条件下经常会发出呜呜声,把鼻子贴在人的大腿上并蹭蹭舔舔,还会在人类悲伤时叼来玩具哄人开心。尽管这样的行为暗示着它们想要给主人提供安慰,但同时也可能仅仅代表了它们的好奇心,又或者它们只是看到主人懊恼感到忧虑罢了。
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