假笑和真笑不同吗?

我们向伦敦大学学院的索菲·斯科特教授提出了这个问题。

苏菲:嗯，你可以从两个方面来看待这个问题。研究人员做了一项关于人们笑的研究。那么，当你发出笑声时会发生什么呢?他们所做的是让人们发出笑声，“哈哈哈”，或者他们去挠他们的脚，让他们在扫描仪的末端发出真正的笑声。有趣的是，大脑中的网络看起来非常非常相似。你可以识别一个叫做下丘脑的大脑区域。这是一个专门与真正的笑声有关的小区域。所以，你可能会发现，真正的笑和强迫的笑在运动方面是非常相似的，但在情感上是不同的，你可以看到它们与真正的笑有联系。我们感兴趣的是它的另一面，也就是当你听到笑声时会发生什么。我们一直在研究当你听到笑声时会发生什么，而你不知道，实际上有两种不同的笑声。 There's real laughter and there's posed laughter. What we find is, that your brain absolutely tells the difference between the two, whether or not you're told to listen for them. And actually, you get very interesting observations for the posed laughter because when you hear somebody laughing, and they're clearly not actually helplessly laughing, actually, that's most of the laughter you hear. When you laugh with your friends, you're not most of the time crying with laughter. So, it's an important social cue that tells you people are doing it for some reason. I think you're always trying to work out why people are laughing. That's why when you hear posed laughter, there's actually more mystery to it. Real laughter is unambiguous. Clearly, some of these are helpless mirth whereas that if you hear somebody going, "Ha, ha, ha!" "Why are they doing that? Who are they doing it for? What's the social buzz?" Your brain really wants to know more about that.

汉娜:所以，你大脑的社交部分在听到假笑时比听到真笑时更活跃?

索菲:没错。你用来理解他人动机和想法的大脑区域被激活得更多，你会听到人们以一种做作的方式笑。对于真正的笑声，你会得到更多的听觉激活。这可能反映了一个事实，真正的笑，如果你回想一下上次你笑得停不下来的时候，你实际上在你的胸腔里产生了难以置信的强大压力，因为你在笑的时候把空气挤出来了。它会发出一组你无法用其他方式发出的声音，也不可能用其他方式发出。所以，在声学上，真正的笑声有一些非常有趣的特征，我认为我们对它有更多的听觉激活。