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爱的快乐,是大脑赏给你的

2017-08-28 04:01:46   中国青年网

左图数字标识处是陷入爱情中的大脑最为兴奋的区域,能给人带来愉悦、依赖的感觉。

剪纸作品《七夕相会》

王洪生 刘松柏 作

今天是七夕情人节,不免谈情说爱。这一点,就算是科学家也不例外。

全世界有许多科学团队,对恋爱时人的大脑神经机制做过研究,答案就是——陷入爱情中的大脑,就像是被仙女棒点过一样,到处是闪闪的“苏”点。

刚刚坠入爱河的人

为什么会“快乐得飞起来”

过去10年,芝加哥大学的心理学家斯蒂芬妮·卡西奥普(Stephanie Cacioppo)一直在对浪漫爱情的神经机制进行研究。

从开始迷恋一个人,到陷入与TA的爱恋之中,“在这个过程中大脑发生了很多复杂的变化,特别在大脑的奖励系统中。”

这个结论得到其他科学家的实验证实。

《科学美国人》的高级编辑马克·菲谢蒂(Mark Fischetti)曾介绍过犹他大学的心理学家莉萨·戴蒙德(Lisa Diamond)和珍娜·迪肯森(Janna Dickenson)的研究。

这组科学家团队招募了一批受试者,他们的共同特点是“刚开始沉浸在爱里”。

虽然他们爱的类型不太一样:有的在享受浪漫的爱情;有的正经历柏拉图式爱情;还有的,也许只是单恋。但是这并不影响爱情从刚刚萌发开始,就会给大脑带来快乐。

科学家们通过观察受试者的脑部核磁共振发现:他们的大脑在释放一些神经递质和其他化学物质,这些物质甚至进入血液当中。

比如,浪漫的爱情,经常会激发大脑中的腹侧被盖区(VTA)与尾状核区域,让这里变得高度活跃。

这些区域,在大脑的奖励通路中扮演核心角色。而且它们调控了一种让人总是“feel good (感觉棒到飞起来)”的神经递质,这就是我们非常熟悉的快乐物质——多巴胺。

在恋爱的早期阶段,当你渴望某一个人时,可能是因为你的大脑形成了一个条件反射——喜欢让你感觉好的事物。

只要爱还在

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