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  3. The relentless march of technology into everyday life has always given rise to debate about whether it is a good or a bad thing.

The relentless march of technology into everyday life has always given rise to debate about whether it is a good or a bad thing.

admin2014-09-05  53
问题     The relentless march of technology into everyday life has always given rise to debate about whether it is a good or a bad thing. Some believe that the Internet and computer software are making humans more stupid or shallow. But others argue that computer programs in the form of video games can make people smarter or improve specific skills, such as spatial awareness.
    Shawn Green and Alexandre Pouget, from the University of Rochester, in New York state, set out to find an answer. Their study, reported in Current Biology, involved a number of experiments. In one,the participants had to watch 12 dots moving randomly on a screen and quickly assess their aggregate direction of movement. Another test asked participants to work out the direction of specific sounds embedded within stereo white noise. In both tests the video-gamers did better. However, the scientists were aware that gamers could have been born with improved abilities to perform such tasks,which were possibly what attracted them to gaming in the first place. Consequently, a third test was necessary to see if these abilities could have been learnt.
    The non-gaming volunteers were put through 50 hours of video-game training. For some this involved playing fast-action shoot-’em-up games such as " Call of Duty 2 " and " Unreal Tournament" , but others were given a slow-moving life-strategy game, "The Sims 2". The researchers found that those trained with action games raised their performance to the level of the experienced gamers. Moreover, they were more efficient in their use of visual or auditory evidence than those playing with the Sims.
    The researchers conclude that fast action video-games players develop an enhanced sensitivity to what is going on around them and that this may help with activities such as multitasking, driving, reading small print, navigation and keeping track of friends or children in a crowd. The precise neural mechanism for this effect, however, is still unknown.
    What is known is that people make decisions based on probabilities that are constantly being calculated and refined in their heads—something called "probabilistic inference". The brain collects small pieces of information, eventually gathering enough to make an accurate decision. When driving a car, for example, many probabilities will be collated to make decisions such as whether or not to brake. The more efficient someone is at collecting visual and auditory information, the faster he can reach the threshold needed to make a decision.
    Shawn Green, Alexandre Pouget suggest that reaction times in the population will probably improve with the rise of fast-action video-games. There are a lot of players: last year a report estimated that 67% of American households contained at least one video-gamer. And if video-gamers are really better equipped to make quick decisions, they might also turn out to be better drivers and end up in fewer accidents. However, the notion that gamers acquire some minor physical skills may not pacify concerned parents. What,after all,of the skills they are not acquiring when shooting virtual cops instead of reading or talking?
According to Paragraph 5,people make decisions based on______.
选项 A、visual and auditory information in the surroundings
B、meaningful processing of relevant information
C、rapid calculating of the possibility of an event
D、quickly reaching the threshold of decision-making
答案B
解析 第五段就为什么感知能力增强能提升某些技能作出了科学的解释。人们的决定是基于脑海中一种被称作“概率演算”的过程作出的。所谓的概率演算，实际上包含两个过程，第一是大脑从周围环境中搜集各种各样的信息片段，第二是根据这些信息对事件演变概率作出计算推断，从而作出准确的决定。因此光有感知信息还不够，更重要的是对这些信息的加工处理。[A]不全面，[B]准确。[C]偷换概念，原文使用的probability指的是概率，某一个行为可能引发的各种结果的概率，而这里的possibility of an event，指的是某一种事情发生的可能性，概念不同。[D]是根据原文捏造的选项，与题干无关。
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