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
50
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.
【F3】
选项
答案
他们不知道灯亮有时是按照一定的模式出现的——这种模式被称作“人造语法”。
解析
转载请注明原文地址:https://kaotiyun.com/show/KdsZ777K
0
考研英语一
相关试题推荐
Whilefashionisthoughtofusuallyinrelationtoclothing,itisimportanttorealizethatitcoversamuchwiderdomain.Iti
Mostparentssaygood-byetotheirkidsoneatatime.ButStephanieFurstenauAsklof,amiddle-schoolviceprincipalinDesMoi
[A]HealsoempathizedwithMozart’sabilitytocontinuetocomposemagnificentmusiceveninverydifficultandimpoverishedcon
Whatmakesagreathighschool?Americansthinkalotofthingsdo,fromoutstandingacademicsorasupportiveenvironmentfors
Whatmakesagreathighschool?Americansthinkalotofthingsdo,fromoutstandingacademicsorasupportiveenvironmentfors
Therealizationthatcoldscankillhasrenewedinterestinfindingvaccinesandtreatments.Thetroubleisthatthecommoncold
Organizationsandsocietiesrelyonfinesandrewardstoharnesspeople’sself-interestintheserviceofthecommongood.Thet
A.Takeadvantageofsitefeatures.B.Establishanemailaddressforyoursearch.C.Protectyourreference.D.Bealerttounf
Intheiridlemoments,historiansoccasionallyspeculateonhowtheworldwouldbedifferentifAdolfHitlerhadpassedtheentr
Therigidhigher-educationbusinessisabouttoexperienceawelcomeearthquake.Traditionaluniversitiesnowfaceanew【C1】____
随机试题
左支气管()
男性,19岁,夏天野浴后发热、呕吐咖啡渣样物,查体:T38.5℃,巩膜黄染、全身皮肤散在出血点,心率100次/分,律齐,腹软、无压痛,肝脾未触及,最可能的诊断是
A.单核细胞B.淋巴细胞C.中性粒细胞D.嗜酸性粒细胞E.嗜碱性粒细胞犊牛感染了化脓性棒状杆菌,剖检见肾脏有明显的化脓灶,组织病理学观察见病灶局部有大量的炎性细胞浸润,该疾病炎症病灶中渗出的主要炎性细胞类型是()。[2010年真题]
委托为监理人驻工地监理机构开展正常工作提供协助服务,其服务内容包括()。
以下内容属于水利枢纽工程施工组织设计文件中临时工程施工部分内容的有()。
某建筑装饰公司承担了某宾馆200套客房的装修施工:任务。施工按先木门窗安装、吊顶后铺没实木地板。最后对吊顶及墙面进行涂饰。在涂料施工中,为防止门扇、玻璃及木饰面被污染,在施涂工作面周边粘贴美纹纸。
2011年2月16日,利比亚紧张局势升级,安全形势发生重大变化,我国政府迅速撤离了我在利比亚人员。该行动主要体现了主权国家的()。
国际储备运营管理有三个基本原则是()。
设有定义:inta=1,b=2,c=3;以下语句中执行效果与其它三个不同的是
Georgeisayoungman.Hehasaverybigdogandhehasaverysmallcar,too.Helikesplayingbasketball.LastMondayheplaye
最新回复
(
0
)