人们常用“好得像一个人”形容关系亲密的朋友。新研究显示这确实有生理基础,大脑会把非常亲密的朋友当成自身的一部分。研究人员请22名成年人参与试验,其中有亲密朋友也有陌生人。他们在试验中受轻微电击,与此同时,研究者利用核磁共振成像技术扫描他们的大脑。结果显示,当某人大脑受轻微电击时,大脑中负责对威胁做出反应的区域会变得很活跃;当对他觉得陌生的人进行电击时,这些区域几乎没有活动;然而当对他的亲密朋友进行电击时,这些区域会出现与自身遭受电击时基本一样的活动特征。 People often use “like a person” to describe close friends. New research shows that this does have a physical basis and that the brain treats very close friends as part of it. Researchers asked 22 adults to participate in the trial, including close friends and strangers. They were struck lightly in the trial, meanwhile researchers scanned their brain using magnetic resonance imaging. The results showed that when someone’s brain was slightly shocked, the area in the brain responsible for responding to the threat became active; those areas were almost devoid of activity when they were shocked by strangers; however, When close friends are struck by an electric shock, these areas exhibit the same characteristics of activity as when they were subjected to an electric shock.