这些可能包括反社会的特征， 例如缺乏情感温暖。

These could include antisocial traits and lack of emotional warmth for example.

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但是，辛格说，如果一个人有反社会的行为，那么原因就在他大脑中。

But, says Singer, if a person does something antisocial, the reason for it is in the brain.

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相反，对他人负面的认知则反映出很大程度的自恋，以及反社会的行为倾向。

In contrast, negative perceptions of others are linked to higher levels of narcissism and antisocial behavior.

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