研究：人类大脑能“听出”笑声真假
<p>下回当你听到老板讲的无聊笑话而硬挤出笑容时，可真要注意了，其实他们能看出来你是在装模作样。</p><p>伦敦研究人员近日发现，我们在听到发自内心的笑声和虚情假意的笑声时，大脑会呈现出完全不同的反应。</p><p>假笑声会激活大脑中专门用于破译情感信息的区域。也就是说，听到假笑声时，我们会知道那并非真情流露，同时大脑会自动分析假笑的缘由，隐含的意思以及对方的真实想法。</p><p>而发自内心的笑声会激活大脑中与快乐和积极情绪相关的区域。</p><p>为了证实这一理论，伦敦大学皇家霍洛韦学院心理学博士卡罗琳·麦格蒂根让志愿者倾听<span word="YouTube">YouTube</span>网站上视频片段中的开怀大笑声，同时监测他们大脑的反应。并将参与者听到真笑时的大脑活动与听到假笑时的反应做对比。</p><p>测试结果显示，参与者在未被告知测试目的的情况下能够下意识地分辨出假笑声。</p><p>麦格蒂根指出人类大脑对于笑声中所隐含的社会和情感信息非常敏感。</p><p>“在我们的研究过程中，当参与者听到笑声，他们会启动大脑中与心智相关的区域，从而试图获知他人的情感或精神状态。”</p><p><span word="Next">Next</span> <span word="time">time</span> <span word="your">your</span> <span word="boss">boss</span> <span word="tells">tells</span> <span word="a">a</span> <span word="bad">bad</span> <span word="joke">joke</span> <span word="and">and</span> <span word="you">you</span> <span word="feel">feel</span> <span word="compelled">compelled</span> <span word="to">to</span> <span word="laugh">laugh</span>, <span word="beware">beware</span> - <span word="they">they</span> <span word="can">can</span> <span word="tell">tell</span> <span word="you">you</span>'<span word="re">re</span> <span word="faking">faking</span> <span word="it">it</span>.</p><p><span word="Researchers">Researchers</span> <span word="from">from</span> <span word="London">London</span> <span word="have">have</span> <span word="discovered">discovered</span> <span word="our">our</span> <span word="brains">brains</span> <span word="carry">carry</span> <span word="out">out</span> <span word="different">different</span> <span word="process">process</span> <span word="when">when</span> <span word="we">we</span> <span word="hear">hear</span> <span word="genuine">genuine</span> <span word="laughter">laughter</span> <span word="compared">compared</span> <span word="to">to</span> <span word="fake">fake</span> <span word="chuckles">chuckles</span>.</p>
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