刚搜的时候,还学了一个新词,哈哈 。就是如何测量人的愉悦?用了一种叫The Duchenne smile。网摘定义是:The Duchenne smile is an expression that signals true enjoyment. It occurs when the zygomaticus major muscle lifts the corners of your mouth at the same time the orbicularis oculi muscles lift your cheeks and crinkle your eyes at the corners. 这种微笑就是,颧大肌和眼轮匝肌同时作用制造出来的那个微笑,代表着人的真正愉悦情绪。也就是咧开嘴眼角能挤出褶子的那种发自内心的笑。 source