题目内容
Parents who believe that playing video games is less harmful to their kids" attention spans than watching TV may want to reconsider. Some researchers 1 more than 1,300 children in different grades for a year. They asked both the kids and their parents to estimate how many hours per week the kids spent watching TV and playing video games, and they 2 the children"s attention spans by 3 their schoolteachers. 4 studies have examined the effect of TV or video games on attention problems, but not both. By looking at video-game use 5 TV watching, these scientists were able to show for the first time that the two activities have a similar relationship 6 attention problems.Shawn Green, a psychologist at the University of Minnesota, points out that the study doesn"t distinguish between the type of 7 required to excel at a video game and that required to excel in school."A child who is capable of playing a video game for hours 8 obviously does not have a 9 problem with paying attention," says Green. " 10 are they able to pay attention to a game but not in school What expectancies have the games set up that aren"t being delivered in a school 11 " Modem TV shows are so exciting and fast paced that they make reading and schoolwork seem 12 by comparison, and the same may be true 13 video games, the study notes."We weren"t able to break the games down by educational versus non-educational 14 nonviolent versus violent," says Swing, 15 that the impact that different types of games may have on attention is a ripe area for future research.
查看答案
搜索结果不匹配？点我反馈
更多问题
Parents who believe that playing video games is less harmful to their kids" attention spans than watching TV may want to reconsider. Some researchers 1 more than 1,300 children in different grades for a year. They asked both the kids and their parents to estimate how many hours per week the kids spent watching TV and playing video games, and they 2 the children"s attention spans by 3 their schoolteachers. 4 studies have examined the effect of TV or video games on attention problems, but not both. By looking at video-game use 5 TV watching, these scientists were able to show for the first time that the two activities have a similar relationship 6 attention problems.Shawn Green, a psychologist at the University of Minnesota, points out that the study doesn"t distinguish between the type of 7 required to excel at a video game and that required to excel in school."A child who is capable of playing a video game for hours 8 obviously does not have a 9 problem with paying attention," says Green. " 10 are they able to pay attention to a game but not in school What expectancies have the games set up that aren"t being delivered in a school 11 " Modem TV shows are so exciting and fast paced that they make reading and schoolwork seem 12 by comparison, and the same may be true 13 video games, the study notes."We weren"t able to break the games down by educational versus non-educational 14 nonviolent versus violent," says Swing, 15 that the impact that different types of games may have on attention is a ripe area for future research.
Parents who believe that playing video games is less harmful to their kids" attention spans than watching TV may want to reconsider. Some researchers 1 more than 1,300 children in different grades for a year. They asked both the kids and their parents to estimate how many hours per week the kids spent watching TV and playing video games, and they 2 the children"s attention spans by 3 their schoolteachers. 4 studies have examined the effect of TV or video games on attention problems, but not both. By looking at video-game use 5 TV watching, these scientists were able to show for the first time that the two activities have a similar relationship 6 attention problems.Shawn Green, a psychologist at the University of Minnesota, points out that the study doesn"t distinguish between the type of 7 required to excel at a video game and that required to excel in school."A child who is capable of playing a video game for hours 8 obviously does not have a 9 problem with paying attention," says Green. " 10 are they able to pay attention to a game but not in school What expectancies have the games set up that aren"t being delivered in a school 11 " Modem TV shows are so exciting and fast paced that they make reading and schoolwork seem 12 by comparison, and the same may be true 13 video games, the study notes."We weren"t able to break the games down by educational versus non-educational 14 nonviolent versus violent," says Swing, 15 that the impact that different types of games may have on attention is a ripe area for future research.
Parents who believe that playing video games is less harmful to their kids" attention spans than watching TV may want to reconsider. Some researchers 1 more than 1,300 children in different grades for a year. They asked both the kids and their parents to estimate how many hours per week the kids spent watching TV and playing video games, and they 2 the children"s attention spans by 3 their schoolteachers. 4 studies have examined the effect of TV or video games on attention problems, but not both. By looking at video-game use 5 TV watching, these scientists were able to show for the first time that the two activities have a similar relationship 6 attention problems.Shawn Green, a psychologist at the University of Minnesota, points out that the study doesn"t distinguish between the type of 7 required to excel at a video game and that required to excel in school."A child who is capable of playing a video game for hours 8 obviously does not have a 9 problem with paying attention," says Green. " 10 are they able to pay attention to a game but not in school What expectancies have the games set up that aren"t being delivered in a school 11 " Modem TV shows are so exciting and fast paced that they make reading and schoolwork seem 12 by comparison, and the same may be true 13 video games, the study notes."We weren"t able to break the games down by educational versus non-educational 14 nonviolent versus violent," says Swing, 15 that the impact that different types of games may have on attention is a ripe area for future research.
Ever since the early days of modem computing in the 1940s, the biological metaphor has been irresistible. The first computers—room-size behemoths—were referred to as "giant brains" or "electronic brains," in headlines and everyday speech. As computers improved and became capable of some tasks familiar to humans, like playing chess, the term used was "artificial intelligence". DNA, it is said, is the original software.For the most part, the biological metaphor has long been just that—a simplifying analogy rather than a blueprint for how to do computing. Engineering, not biology, guided the pursuit of artificial intelligence. As Frederick Jelinek, a pioneer in speech recognition, put it, "airplanes don"t flap their wings."Yet the principles of biology are gaining ground as a tool in computing. The shift in thinking results from advances in neuroscience and computer science, and from the push of necessity.The physical limits of conventional computer designs are within sight—not today or tomorrow, but soon enough. Nanoscale circuits cannot shrink much further. Today"s chips are power hogs, running hot, which curbs how much of a chip"s circuitry can be used. These limits loom as demand is accelerating for computing capacity to make sense of a surge of new digital data from sensors, online commerce, social networks, video streams and corporate and government databases.To meet the challenge, without gobbling the world"s energy supply, a different approach will be needed. And biology, scientists say, promises to contribute more than metaphors. "Every time we look at this, biology provides a clue as to how we should pursue the frontiers of computing," said John E. Kelly, the director of research at I. B. M.Dr. Kelly points to Watson, the question—answering computer that can play "Jeopardy!" and beat two human champions earlier this year. The I. B. M. "s clever machine consumes 85,000 watts of electricity, while the human brain runs on just 20 watts. "Evolution figured this out," Dr. Kelly said.Several biologically inspired paths are being explored by computer scientists in universities and corporate laboratories worldwide. One project, a collaboration of computer scientists and neuroscientists begun three years ago, has been encouraging enough that in August it won a $21 million round of government financing. In recent months, the team has developed prototype "neurosynaptic" microprocessors, or chips that operate more like neurons and synapses than like conventional semiconductors. In pushing the boundaries of computing, biology serves as a(n) ______
微信支付 
支付宝支付