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SSS 2012-03-22

时间:2012-04-16 06:07来源:互联网 提供网友:gmeng   字体: [ ]
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 A quarter of all police shootings involve unarmed suspects. In a few recent cases, officers mistook cell phones and hairbrushes for guns, and shot and killed the victims. Now a study may explain—in part—these errors. Researchers found that when a person holds a gun, they’re more likely to think they see a weapon being carried by another. That study is in the Journal of Experimental Psychology1: Human Perception and Performance. 

 
Researchers had volunteers hold a Wii handgun or a foam2 ball. Then they flashed images of people either holding guns or objects like soda3 cans, and asked volunteers to decide if they'd seen a weapon. The subjects holding the Wii gun were more likely to mistakenly see a gun in the hands of their onscreen "foe4." When researchers varied5 the experiment, subjects holding shoes were more likely to see shoes onscreen.
 
The reason, the authors say, is that just planning to possibly use an object—like a pistol—might prime the brain for spotting that object. Which might be a great advantage for quickly noting when a suspect is indeed armed. But can cause tragic6 overreactions when there’s really no gun in sight.
 
Thanks for the minute for Scientific American 60 Second Science, I am Christopher Intagliata

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1 psychology U0Wze     
n.心理,心理学,心理状态
参考例句:
  • She has a background in child psychology.她受过儿童心理学的教育。
  • He studied philosophy and psychology at Cambridge.他在剑桥大学学习哲学和心理学。
2 foam LjOxI     
v./n.泡沫,起泡沫
参考例句:
  • The glass of beer was mostly foam.这杯啤酒大部分是泡沫。
  • The surface of the water is full of foam.水面都是泡沫。
3 soda cr3ye     
n.苏打水;汽水
参考例句:
  • She doesn't enjoy drinking chocolate soda.她不喜欢喝巧克力汽水。
  • I will freshen your drink with more soda and ice cubes.我给你的饮料重加一些苏打水和冰块。
4 foe ygczK     
n.敌人,仇敌
参考例句:
  • He knew that Karl could be an implacable foe.他明白卡尔可能会成为他的死敌。
  • A friend is a friend;a foe is a foe;one must be clearly distinguished from the other.敌是敌,友是友,必须分清界限。
5 varied giIw9     
adj.多样的,多变化的
参考例句:
  • The forms of art are many and varied.艺术的形式是多种多样的。
  • The hotel has a varied programme of nightly entertainment.宾馆有各种晚间娱乐活动。
6 tragic inaw2     
adj.悲剧的,悲剧性的,悲惨的
参考例句:
  • The effect of the pollution on the beaches is absolutely tragic.污染海滩后果可悲。
  • Charles was a man doomed to tragic issues.查理是个注定不得善终的人。
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