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看《阿凡达》会感到头痛？[文章来自:考试与评价 j"Ub 7 v- ofOQ-/]
3D films such as 'Avatar' 'give viewers headaches'[文章版权 禁止转载:考试与评价 ,ZIPJI?\l1=Fy FroG]
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Watching 3D films such as Avatar could give some viewers headaches, experts have warned.
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The success of James Cameron's science-fiction blockbuster, which has already taken more than $1 billion (£600 million) at the box office, is fuelling a surge in popularity for three-dimensional movies and new 3D television sets.
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But prolonged viewing may result in an aching head, according to Dr Michael Rosenberg, an ophthalmology professor at Northwestern University Feinberg School of Medicine in Chicago.
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He said: "There are a lot of people walking around with very minor eye problems, for example a minor muscle imbalance, which under normal circumstances the brain deals with naturally."
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Watching a 3D movie confronts viewers with an entirely new sensory experience. "That translates into greater mental effort, making it easier to get a headache," he said.
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Dr Deborah Friedman, a professor of ophthalmology and neurology at the University of Rochester Medical Center in New York, said: "If your eyes are a little off to begin with then it's really throwing a whole degree of effort that your brain now needs to exert. This disparity for some people will give them a headache."
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Experts say there are no studies tracking how common it is to get a headache after watching a 3D film.
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Rick Heineman, a spokesman for RealD, which provides 3D equipment to cinemas, said headaches and nausea were the main reasons 3D technology never took off before.
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But he said new digital technology addresses many of the problems that had previously caused sore heads.
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专家日前警告说，观看《阿凡达》这样的3D电影会让人感到头痛。
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詹姆斯•卡梅隆的科幻大片《阿凡达》目前已创下超过10亿美元（6亿英镑）的惊人票房。该片的成功开启了3D电影和3D电视的新时代。
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但芝加哥西北大学费恩柏格医学院的眼科学教授迈克尔•罗森堡博士说，长时间观看3D电影可能会导致头痛。
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他说：“很多人的眼睛都有点小毛病，比如眼部肌肉轻微不平衡，在正常情况下大脑可以自然应对这种问题。”
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观看3D电影会给观众带来一种全新的视觉体验。他说：“这就需要更多的脑力劳动，容易引起头痛。”
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纽约罗彻斯特大学医学中心的眼科学和神经学教授戴伯拉•弗瑞德曼博士说：“如果你的眼睛本来就有点小问题，那么在观影时你的大脑就会相当费劲。这种失衡会让有些人感到头痛。”
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专家说，现在尚无研究追踪调查人们在看完3D电影后感到头痛的情形究竟有多普遍。
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为影院提供3D设备的RealD公司的发言人瑞克•海涅曼说，3D技术一直未兴起的主要原因就是它会让观影者感到头痛和恶心。
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但他说，新的数码技术解决了以前导致头痛的很多问题。
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