首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
Before a big exam, a sound night’s sleep will do you more good than poring over textbooks. That, at least, is the folk wisdom. A
Before a big exam, a sound night’s sleep will do you more good than poring over textbooks. That, at least, is the folk wisdom. A
admin
2016-01-10
32
问题
Before a big exam, a sound night’s sleep will do you more good than poring over textbooks. That, at least, is the folk wisdom. And science, in the form of behavioral psychology, supports that wisdom. But such behavioral studies cannot distinguish between two competing theories of why sleep is good for the memory. One says that sleep is when permanent memories form. The other says that they are actually formed during the day, but then "edited" at night, to flush away what is superfluous.
To tell the difference, it is necessary to look into the brain of a sleeping person, and that is hard. But after a decade of painstaking work, a team led by Pierre Maquet at Liege University in Belgium has managed to do it. The particular stage of sleep in which the Belgian group is interested in is rapid eye movement(REM)sleep, when brain and body are active, heart rate and blood pressure increase, the eyes move back and forth behind the eyelids as if watching a movie, and brainwave traces resemble those of wakefulness. It is during this period of sleep that people are most likely to relive events of the previous day in dreams.
Dr. Maquet used an electronic device called PET to study the brains of people as they practiced a task during the day, and as they slept during the following night. The task required them to press a button as fast as possible, in response to a light coming on in one of six positions. As they learnt how to do this, their response times got faster. What they did not know was that the appearance of the lights sometimes followed a pattern — what is referred to as "artificial grammar". Yet the reductions in response time showed that they learnt faster when the pattern was present than when there was not.
What is more, those with more to learn(i. e. , the "grammar" , as well as the mechanical task of pushing the button)have more active brains. The "editing" theory would not predict that, since the number of irrelevant stimuli would be the same in each case. And to eliminate any doubts that the experimental subjects were learning as opposed to unlearning, their response times when they woke up were even quicker than when they went to sleep.
The team, therefore, concluded that the nerve connections involved in memory are reinforced through reactivation during REM sleep, particularly if the brain detects an inherent structure in the material being learnt. So now, on the eve of that crucial test, maths students can sleep soundly in the knowledge that what they will remember the next day are the basic rules of algebra and not the incoherent talk from the radio next door.
The author mentions "maths students" as an example to show______.
选项
A、its significance in the study
B、an inherent pattern being learnt
C、its resemblance to the lights
D、the importance of night’s sleep
答案
B
解析
论证结构题。正确答案为B项“所学到的内在模式”。此题定位于原文的第三段,且在原文的第五段作者以学数学的学生为例说明,如果睡得好,大脑会发现一种内在的某种学习材料的模式。A项“研究的重要性”,C项“和灯泡的相似”和选项D“睡眠的重要性”都不是作者说到“人工语法”时所要谈论的主题。
转载请注明原文地址:https://kaotiyun.com/show/8AsZ777K
0
考研英语一
相关试题推荐
Theglobaleconomy’smoststrikingfeaturenowadaysisthemagnitudeandinterconnectednessofthemacrorisksthatitfaces.Th
Theglobaleconomy’smoststrikingfeaturenowadaysisthemagnitudeandinterconnectednessofthemacrorisksthatitfaces.Th
OneofthemostpressingchallengesthattheUnitedStates—andindeed,theworld—willfaceinthenextfewdecadesishowtoall
OneofthemostpressingchallengesthattheUnitedStates—andindeed,theworld—willfaceinthenextfewdecadesishowtoall
Thedevil,astheoldsayinggoes,isinthedetails.Or,inthecaseofthenewEstonianlawsettingupanationalgeneticdata
[A]Usecommutetime[B]Makeconversationsaboutyourartworkapriority[C]Readbeforeyoufallasleep[D]Garryanotepadandpe
ThinkofthelonelinessfeltbyMarieSmithbeforeshediedearlierthisyearinhernativeAlaska,at89.Shewasthelastpers
TheleadersofDetroit’sstrugglingBigThreeautomakersareappearingbeforetheSenatetoday,whereprospectsof$25billioni
ThelowerhouseofAustralia’sParliamentpassedsweepingchangesinimmigrationpolicyonWednesdaythataremeanttodiscourag
BankruptcyratesintheU.S.havebeengrowingformorethantwodecadesdespitegenerallyrisinglevelsofpersonalincome.The
随机试题
巴纳德认为,非正式组织永远存在于正式组织中,并把它们描述为没有任何具体的联合目标而发生互动的一个()
毛果芸香碱对眼的作用是
沥青混合料结构组成中,密实一悬浮结构的特点有()。
有关商标局审查注册商标申请的时限,下列表述符合商标法律制度规定的是()。
除了销售百分比法以外,财务预测的方法还有()。
登账时,为了保证账簿资料的清晰性和永久性,应采用()书写。
《义务教育语文课程标准(2011年版)》中指出:应鼓励学生()锻炼口语交际能力。
ThereisonewordthatisonthelipsofAmericans,dayandnight:"Sorry".OnetimeasIwaswalkingonthestreet,ayoungman
2009年1月1日,中共中央、国务院发布了《关于2009年促进农业稳定发展农民持续增收的若干意见》。为贯彻落实这一文件精神,具体部署有关工作,××市人民政府决定于2009年1月16日发文召开各县(市、区)政府一把手和主管农业领导参加的农村工作会议。假如由你
设函数f(x,y)=|x-y|g(x,y),其中g(x,y)在点(0,0)的某邻域内连续,且g(0,0)=0,则在点(0,0)处()
最新回复
(
0
)