British cognitive neuroscientist Sophie Scott studies vocal communication. She explains why looking into giggles and mirth is important … and shares ways she makes subjects laugh in the lab.
如果你在Web of Science数据库中搜索有关恐惧情绪的论文，会得到6,477篇已发表的文章。而搜索有关笑声的论文，却只能得到区区175篇。为何差距如此悬殊？原因之一，或许是笑声与其他积极情绪一样，似乎不如消极情绪来得重要。有时人们认为，笑声是一个荒诞、肤浅、毫无意义的研究课题——不像是那种值得用大写”科学”来认真对待的题目。
我是一名研究声音交流的认知神经科学家，我（也许不出所料地）对此持不同意见。我开始深入研究笑声，认为它是一种极为迷人的社会行为，值得深入探讨（我曾为《心理学家》撰写过一篇文章，也在《神经科学杂志》和《大脑皮层》上发表过相关论文）。然而，笑声之所以极难进行科学研究，还有另一个原因——那就是在实验室环境中让人发笑，实在是难上加难。
部分原因在于，我们通常在社交场合中发笑——而这类社交场合极难在实验室中重现，比如在一个无菌的消声室里。但我们又必须借助消声室，才能录制到清晰、纯净的个人笑声，不受他人声音的干扰。
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