在研究中，研究人员在扫描时给受测者看黄色图片，他们发现此时大脑中的下丘脑和杏仁核区域变得活跃。

In studies when researchers showed erotic photos to people as they underwent brain scans, they found activity in the hypothalamus and amygdala areas of the brain.

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但是由于受虫子侵扰的受害者急切地想清除害虫，许多人给自身造成了更大的伤害。

But as victims of infestation have become increasingly desperate to rid their homes of the bedeviling pests, many have only done themselves more harm.

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然后给予者要再给受信者三倍于第一次给的钱，受信者此后得到电脑提示，返还给给予者一部分钱。

This amount would then be tripled and credited to the trustee, who was subsequently prompted by the computer to sacrifice a part of his stash by returning some to the giver.

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