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
2014-10-27
39
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.
【F4】
选项
答案
试验对象在醒来时的反应时间甚至比睡觉时还快,从而消除了他们“在学习,而不是没有学”这一疑虑。
解析
转载请注明原文地址:https://kaotiyun.com/show/ZNK4777K
0
考研英语一
相关试题推荐
ShouldtheTreasurysellitseconomicforecastingcomputersforscrap?ForthepasttwoyearsnooneoutsidetheConservativePa
Sincethemaster’sdegreeinbusinessadministrationfirstappeareddecadesago,criticshavecriticizedtheMBAasanivorytow
Thegovernmentistobanpaymentstowitnessesbynewspapersseekingtobuyuppeopleinvolvedinprominenteases【C1】______thet
Thegovernmentistobanpaymentstowitnessesbynewspapersseekingtobuyuppeopleinvolvedinprominenteases【C1】______thet
Whenthesubjectismoney,womenoftenclingtotwopersistentstereotypes,oneapleasantdream,theotheranightmare.In
Consumersandproducersobviouslymakedecisionsthatmoldtheeconomy,butthereisathirdmajor【C1】______toconsidertherole
StandardEnglishisthevarietyofEnglishwhichisusuallyusedinprintandwhichisnormallytaughtinschoolsandtonon-nat
Comparisonsweredrawnbetweenthedevelopmentoftelevisioninthe20thcenturyandthediffusionofprintinginthe15thand1
ThePewFoundationdiscoveredinarecent【C1】______thattensionsoverinequalityinwealthnow【C2】______tensionsoverraceandi
Smoking,whichmaybeapleasureforsomepeople,isaserioussourceofdiscomforttotheirfellows.(1)_____,medicalauthorit
随机试题
某孕妇,停经40天,下腹部阵发性腹痛及阴道流血1天,量多且伴有血块。妇科检查:子宫稍大,宫口有胚胎组织堵塞。最有效的紧急止血措施是
下列关于混凝土裂缝处理的说法正确的是()。
人民法院就数个证据对同一事实证明力的认定原则,错误的有()。
目前,B股交易实行T+3回转交易。()
以下税种中,同时涉及国税和地税征收管理的有( )。
剔除价格变动的影响,比较确切地反映对外贸易规模的是()。[南京理工大学2011国际商务硕士]
人们普遍认为适量的体育运动能够有效降低中风的发生率,但科学家还注意到有些化学物质也有降低中风风险的效用。番茄红素是一种让番茄、辣椒、西瓜和番木瓜等果蔬呈现红色的化学物质。研究人员选取一千余名年龄在46至55岁之间的人,进行了长达12年的跟踪调查,发现其中番
下面属于黑盒测试方法的是
A、 B、 C、 BHalfadozenanswershowmany.Choice(A)answershowmanyorderedwine.Choice(C)confusesthesimila
GLLOBALWARMING-THEBEGINNINGOFTHEENDIncreasedsocialdebateregardingcomplexissuessuchasthegreenhouseeffectand
最新回复
(
0
)