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SSS 2008-12-17

时间:2010-05-15 07:26来源:互联网 提供网友:木渐浅。   字体: [ ]
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This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute.

 

When it comes to pain, it’s the thought that counts. Because pain hurts more when it’s inflicted1 on purpose. Or so say researchers from Harvard University in the December issue of Psychological Science.

Forty-three people were paired off with a partner for what they were told would be a test of psychological perception. Then they were hooked up to some electrodes, and given a quick zap. Sometimes the shock was “intentional.” So, the partner would call for a shock to be administered, and zzzt it came. But sometimes the shock was unintentional. That is, the partner called for the subject to hear a pleasant tone, but those zap-happy researchers hit the shock button instead.

They then asked the subjects to rate the pain. The results? On a scale of one to seven, with seven being “extremely uncomfortable,” the shocks that were done on purpose rated a respectable 3.6. But the same exact shock when given by accident only rated a 3.

That emotional response to pain makes evolutionary2 sense, the researchers say. Because an ouch that’s just an accident is probably one-time thing. Whereas someone who wants to do you harm will probably do it again. In which case it may be a good idea to pull off your electrodes and just go home.

 

Thanks for the minute for Scientific American's 60-Second Science. I'm Karen Hopkin.

 
 


点击收听单词发音收听单词发音  

1 inflicted cd6137b3bb7ad543500a72a112c6680f     
把…强加给,使承受,遭受( inflict的过去式和过去分词 )
参考例句:
  • They inflicted a humiliating defeat on the home team. 他们使主队吃了一场很没面子的败仗。
  • Zoya heroically bore the torture that the Fascists inflicted upon her. 卓娅英勇地承受法西斯匪徒加在她身上的酷刑。
2 evolutionary Ctqz7m     
adj.进化的;演化的,演变的;[生]进化论的
参考例句:
  • Life has its own evolutionary process.生命有其自身的进化过程。
  • These are fascinating questions to be resolved by the evolutionary studies of plants.这些十分吸引人的问题将在研究植物进化过程中得以解决。
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TAG标签:   SSS  intentional
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