since dogs tend to whine, nuzzle, lick, lay their heads in laps and fetch toys for people indistress.
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。
Although such actions hint at a dog wishing to offer comfort, they could also be signs ofcuriosity, or suggest that a dog is simply distressed by seeing its master upset.
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。
To work round this, the researchers presented 18 dogs of various breeds with four separate20-second conditions.
为了能够正确解读狗的反应,研究者在实验中采用了18条不同品种的狗并将它们分别置于时长均为20秒的四种不同的情境中,
They included their owner crying, a stranger crying and both taking it in turns to hum Maryhad a little lamb.
分别为主人在一旁哭泣、陌生人在一旁哭泣、主人与陌生人轮流对狗狗哼唱玛丽有只小羊羔。
All four of these conditions were preceded by two minutes of mundane conversationbetween Ms Mayer, who filled the role of the stranger, and the dog s owner.
在每种情境开始前,梅耶女士都会充当陌生人的角色与狗的主人进行时长两分钟的常规交谈。
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