你的笑聲出賣了你
Cracking Up With A Friend Or Politely Chuckling With A Stranger? Your Laughter Reveals It All!
你的笑聲出賣了一切
Laughter, be it a loud guffaw or a well-mannered giggle, is a universal way to express joy. But as it turns out, your chuckle reveals a lot more than the fact that you are happy. It enables listeners, even those that cannot observe you, instantly realize if you are having a good time with a close friend or laughing politely with a complete stranger.
無論是哈哈大笑還是抿嘴輕笑，“笑”是用來表達“快樂”的通用語言。事實上，“笑”傳達的意思遠比“開心”要多得多。你是與密友玩的很開心還是僅僅是對陌生人表示禮貌，這些聽的人（甚至是局外人）都能從你的笑聲中判斷出來。
At least that is the conclusion reached by a team of scientists led by Greg Bryant, an Associate Professor of Communication Studies at the University of California, Los Angeles. The researchers began by requesting collaborators from across the globe to send them audio clips of people laughing. The 48 tapes they received ranged from recent recordings of laughter between two college friends to ones from conversations that occurred a decade ago. The clips also had all possible combinations — Interactions between friends, strangers, all-male groups, all-female groups, as well as a mix of both genders.
Greg Bryant（洛杉磯加州大學交流研究方向的副教授）帶頭的科學小組研究對此進行過專項研究。起初，他們讓來自世界各地的參與者發給他們笑聲錄音。收到的48份錄音中，有近期錄製兩個大學生的笑聲，也有來自十年前一段對話的笑聲。此外，裡面還包括朋友之間、陌生人之間、全部是男性、全部是女性以及男女混合交談中發出的笑聲。
The team then played the short recordings, each lasting less than a second, to 966 people spread across 24 different cultures around the world. The listeners ranged from people residing in remote areas to those living in some of the world’s most modern cities. To the team’s astonishment, despite the cultural and regional differences, the listeners were able to identify the difference in laughter between friends and strangers, 61% of the time.
隨後，小組把這些錄音（不小於一分鐘），播放給966個來自24種不同文化的人。這些人有的來自偏遠地區，有的來自世界最繁華的都市。讓小組震驚的是，拋開文化和地域差別，試聽者都能夠正確判斷笑聲來自朋友還是陌生人，正確率高達61%。
The scientists, who published their findings in the Scientific Journal, Proceedings of the National Academy of Sciences on March 9, 2016, say that the accuracy was even higher when it came to recordings of only women laughing.
他們在2016年3月9日的《美國科學院論文集》中發表了此次研究結果。同時，他們還表示，對女性笑聲判斷的正確率比這個研究結果的平均值還要高。
The researchers speculate that this is probably because women are more transparent in expressing their feelings than men.
研究者進一步解釋，這可能是因為女性比男性更容易表達自己的真實情感。
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