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Ever wonder how the citizens of Metropolis1 somehow could not recognize Clark Kent once he ditched the glasses and became Superman? Well, now there’s an actual scientific explanation: When a person alters their appearance, even in small ways like adding a pair of glasses, it can indeed lessen2 the ability of others who do not know that person to recognize his or her face.
The study is in the journal Applied3 Cognitive4 Psychology5. [Robin6 S. S. Kramer and Kay L. Ritchie, Disguising Superman: How Glasses Affect Unfamiliar7 Face Matching]
Psychologists Robin Kramer and Kay Ritchie from the University of York in the U.K. showed volunteers pictures of unknown people—not celebrities8. The photos came from Google Images, and featured people in various poses, with different facial expressions and changing lighting9.
The participants saw two photos at the same time—either two pictures of the same person or a different person in each picture. Three possible pairs of pictures were presented: both people wore glasses; neither person wore glasses; or only one of the pair of people had glasses on.
Then the researchers asked the volunteers whether the pictures were of the same person or of two different people.
When the folks in both pictures were in the same condition—either both with glasses or both without—the participants were about 80 percent accurate in telling whether it was the same person or a different person in the two pics. But accuracy fell to 74 percent when glasses were worn in only one of the pictures.
The researchers noted10 that the appearance of the eyes may be the most important aspect of facial recognition, so a change to the eyes could be expected reduce recognition. But trained examiners, such as TSA agents, may be less fooled by such simple modifications11.
The researchers concluded their paper by writing [quote]: “While we may still find it hard to believe that the inhabitants of Metropolis are unable to match Clark Kent with the numerous appearances of Superman in newspapers and on television, we can at least understand why Kent has chosen glasses as his aid to anonymity12.”
—Erika Beras
1 metropolis | |
n.首府;大城市 | |
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2 lessen | |
vt.减少,减轻;缩小 | |
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3 applied | |
adj.应用的;v.应用,适用 | |
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4 cognitive | |
adj.认知的,认识的,有感知的 | |
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5 psychology | |
n.心理,心理学,心理状态 | |
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6 robin | |
n.知更鸟,红襟鸟 | |
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7 unfamiliar | |
adj.陌生的,不熟悉的 | |
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8 celebrities | |
n.(尤指娱乐界的)名人( celebrity的名词复数 );名流;名声;名誉 | |
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9 lighting | |
n.照明,光线的明暗,舞台灯光 | |
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10 noted | |
adj.著名的,知名的 | |
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11 modifications | |
n.缓和( modification的名词复数 );限制;更改;改变 | |
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12 anonymity | |
n.the condition of being anonymous | |
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