一半的参与者握拳而另一半不握拳。
有两个按键，实验被试按了其中一个按键后会得到金钱的收益或损失。 这个结果是由被试隔壁的参与者的按键决定的，而不取决于被试自己的反应，而被试并不知道这一实验安排。
Experimental participants received financial gains or losses after pressing one of two buttons on a computer, unaware that the outcome depended not on their own choice but on their neighbour's.
而等到参与者们判断只有一个人戴眼镜而另外一个人不戴眼镜的照片时，参与者们的正确率大约下降了百分之六，显然他们判断两张照片里是否为同一人的能力被削弱了。
When one face wore glasses, and the other didn't, participants were significantly less able to identify when the same person was there, scoring about six percent lower.
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