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
2016-03-22
72
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.【F1】
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.【F2】
The particular stage of sleep in which the Belgian group is interested in is rapid eye movement sleep, when 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.【F3】
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.【F4】
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.【F5】
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.
【F5】
选项
答案
所以,大考前夜,参加第二天数学考试的学生可以酣睡,他们知道明天需要记住的都是些基本的代数法则,而不是隔壁收音机里断断续续的对话。
解析
转载请注明原文地址:https://kaotiyun.com/show/ddsZ777K
0
考研英语一
相关试题推荐
LongbeforeManlivedontheearth,therewerefishes,reptiles,birds,insects,andsomemammals.Althoughsomeoftheseanimal
InBritainonethirdofallmarriagesendindivorceandoneinfourfamilieswithchildrenisheadedbyaloneparent.Arecent
[A]Tosomeextent,thispublichostilityiswelldeserved.ThebankruptciesofEnronintheU.S.andParmalatinItalylastwee
Youshouldthinkseriouslyaboutworkingforayearortwobeforeyougotograduateschool.Onestudentsaidthathavingworked
Whatmakesagreathighschool?Americansthinkalotofthingsdo,fromoutstandingacademicsorasupportiveenvironmentfors
Inthedaysbeforepreschoolacademieswereallbutmandatoryforkidsunder5,IstayedhomeandgotmyearlyeducationfromMi
Theirdefenderssaytheyaremotivated,versatileworkerswhoarejustwhatcompaniesneedinthesedifficulttimes.Toothers,
WithJapan’swelfaresystembucklingunderthedemandsofanageingsociety,theworld’soldestmanapologizedyesterdayforhis
Intheiridlemoments,historiansoccasionallyspeculateonhowtheworldwouldbedifferentifAdolfHitlerhadpassedtheentr
Therigidhigher-educationbusinessisabouttoexperienceawelcomeearthquake.Traditionaluniversitiesnowfaceanew【C1】____
随机试题
(2012年04月,2008年04月)_________是最古老也最常见的市场营销组织形式。它强调市场营销各种职能如销售、广告和调研等的重要性。它把销售职能当成市场营销的重点。
转移癌最常转移的部位是
A、氢氧化钙糊剂B、氧化锌丁香油糊剂C、聚羧酸水门汀D、甲醛甲酚E、磷酸水门汀乳牙深龋去净腐质选择垫底药物
中国药典中,检查维生素E的生育酚杂质所采用的检查方法是
荆防颗粒的功能主治是
对于表示不同的内容的图线,其宽度6(也称为线宽),应在0.16~3.00mm线宽组中选取,由于工程图纸之间的差异较大,要根据图样的复杂程度、比例大小和线条密度来确定基本线条的宽度,并由粗、中、细线条组成线条组。()
下列()建筑、场地和设备,属于军事设施。
海关最基本的任务是(),海关的其他任务都在该工作的基础上进行。
癞皮病是由于缺乏()。
A、Delightful.B、Meaningless.C、Terrible.D、Cruel.A
最新回复
(
0
)