科学详解：大脑以为你中毒了所以你晕车了?
<p><span word="Traveling">Traveling</span> <span word="makes">makes</span> <span word="us">us</span> <span word="feel">feel</span> <span word="sick">sick</span> <span word="because">because</span> <span word="modern">modern</span> <span word="transport">transport</span> <span word="tricks">tricks</span> <span word="the">the</span> <span word="brain">brain</span> <span word="into">into</span> <span word="thinking">thinking</span> <span word="we">we</span> <span word="have">have</span> <span word="been">been</span> <span word="poisoned">poisoned</span>, <span word="a">a</span> <span word="neuroscientist">neuroscientist</span> <span word="has">has</span> <span word="said">said</span>.</p><p>一位神经系统科学家表示，现代交通工具会诱导大脑认为我们已经中毒，所以旅行常常使我们感到不舒服。</p><p><span word="Being">Being</span> <span word="in">in</span> <span word="a">a</span> <span word="car">car</span>, <span word="train">train</span>, <span word="boat">boat</span> <span word="or">or</span> <span word="plane">plane</span> <span word="causes">causes</span> <span word="conflicting">conflicting</span> <span word="signals">signals</span> <span word="in">in</span> <span word="the">the</span> <span word="brain">brain</span> <span word="which">which</span> <span word="trigger">trigger</span> <span word="a">a</span> <span word="reaction">reaction</span> <span word="similar">similar</span> <span word="to">to</span> <span word="that">that</span> <span word="which">which</span> <span word="occurs">occurs</span> <span word="when">when</span> <span word="someone">someone</span> <span word="is">is</span> <span word="poisoned">poisoned</span>.</p><p>乘坐汽车、火车、船舶或飞机的体验会在大脑中形成相互矛盾的信号，这会引发和人们中毒时相似的反应。</p><p><span word="Dr">Dr</span> <span word="Dean">Dean</span> <span word="Burnett">Burnett</span>, <span word="of">of</span> <span word="Cardiff">Cardiff</span> <span word="University">University</span>, <span word="said">said</span> <span word="the">the</span> <span word="feeling">feeling</span> <span word="of">of</span> <span word="nausea">nausea</span> <span word="is">is</span> <span word="caused">caused</span> <span word="because">because</span> <span word="the">the</span> <span word="brain">brain</span> <span word="thinks">thinks</span> <span word="the">the</span> <span word="body">body</span> <span word="needs">needs</span> <span word="to">to</span> <span word="remove">remove</span> <span word="a">a</span> <span word="toxin">toxin</span> <span word="through">through</span> <span word="vomiting">vomiting</span>.</p><p>卡迪夫大学的迪安•伯内特博士称，大脑认为人体需要通过呕吐排毒，于是便造成了这种恶心感。</p><p><span word="But">But</span> <span word="in">in</span> <span word="fact">fact</span>, <span word="the">the</span> '<span word="poisoning">poisoning</span>' <span word="effect">effect</span> <span word="is">is</span> <span word="caused">caused</span> <span word="by">by</span> <span word="the">the</span> <span word="mixed">mixed</span> <span word="messages">messages</span> <span word="from">from</span> <span word="the">the</span> <span word="muscles">muscles</span> – <span word="which">which</span> <span word="tell">tell</span> <span word="the">the</span> <span word="brain">brain</span> <span word="the">the</span> <span word="body">body</span> <span word="is">is</span> <span word="motionless">motionless</span> – <span word="and">and</span> <span word="the">the</span> <span word="ears">ears</span>, <span word="which">which</span> <span word="sense">sense</span> <span word="movement">movement</span>.</p><p>但事实上，这种“中毒”效应是由肌肉中的混合信息所引发的，肌肉向大脑传达身体静止的信息，而耳朵却察觉到身体在运动。</p><p><span word="Speaking">Speaking</span> <span word="on">on</span> <span word="the">the</span> <span word="US">US</span> <span word="radio">radio</span> <span word="show">show</span> <span word="Fresh">Fresh</span> <span word="Air">Air</span>, <span word="Dr">Dr</span> <span word="Burnett">Burnett</span> <span word="said">said</span> <span word="that">that</span> <span word="the">the</span> <span word="body">body</span> <span word="had">had</span> <span word="not">not</span> <span word="yet">yet</span> <span word="evolved">evolved</span> <span word="to">to</span> <span word="cope">cope</span> <span word="with">with</span> <span word="the">the</span> <span word="sensation">sensation</span> <span word="of">of</span> <span word="being">being</span> <span word="in">in</span> <span word="vehicles">vehicles</span>, <span word="where">where</span> <span word="the">the</span> <span word="body">body</span> <span word="is">is</span> <span word="being">being</span> <span word="moved">moved</span> <span word="without">without</span> <span word="performing">performing</span> <span word="movements">movements</span> <span word="itself">itself</span>.</p>
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