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
外语
Before a big exam, a sound night’ s sleep will do you better than poring over textbooks. That, at least, is the folk wisdom. And
Before a big exam, a sound night’ s sleep will do you better than poring over textbooks. That, at least, is the folk wisdom. And
admin
2018-03-16
56
问题
Before a big exam, a sound night’ s sleep will do you better 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 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.
Researchers in behavioral psychology are divided with regard to______.
选项
A、how dreams are modified in their courses
B、the difference between sleep and wakefulness
C、why sleep is of great benefit to memory
D、the functions of a good night’ s sleep
答案
C
解析
文中第一段提到“But such behavioral studies cannot distinguish between two competing theories of why sleep is good for the memory.”所以他们对为什么睡眠对记忆有好处持有不同的观点,故应选C。
转载请注明原文地址:https://kaotiyun.com/show/7xWd777K
本试题收录于:
公共英语五级笔试题库公共英语(PETS)分类
0
公共英语五级笔试
公共英语(PETS)
相关试题推荐
WhatdidCosgrovedobeforehebecameateacherteachinghistory?Whichofthefollowingistrueaccordingtothispassage?
WhichofthefollowingisNOTincludedinthenewsheadline?
ThenewprestigeoftheBritishgraduatesisthemostspectacularbecauseinthepastBritainhasbeenmuch(31)interestedinu
InJapanyoushouldholdabusinesscardwith______andreadthenameandriflecarefully.
Dr.AnneRoe’sworkhasbeenmainlyconcernedwith______.
WhatkindofoverviewdoesthebookintendtogiveaboutAmericansociety?
Whatisthispassagemainlyabout?
Whatdoesthespeakersuggestthatthestudentsshoulddoduringtheterm?
Howmanyplanetsarethereinthesolarsystemrevolvingaroundthesun?
Thesurveyresultssuggestthatthelargestincreaseinsubstanceuseshouldbe______.Whatcanbeinferredfromthelastpara
随机试题
患者女,54岁。被诊断为菌血症,由于病原菌尚不明确,医师为尽快控制感染,给予患者静滴万古霉素和美罗培南。下列情况中,不具有抗菌药物联用指征的是
某规模化种猪场母猪出现体温升高,食欲不振,弱仔、死胎率达60%;哺乳仔猪体温升高至40℃以上,呼吸困难,耳朵发紫,眼结膜炎,3周内死亡率达70%。如果进一步诊断,首先采用的方法是
统计行政法律责任的形式主要有( )。
依照增值税的有关规定,下列货物销售,适用13%增值税税率的有()。
集权过度会使各所属单位缺乏主动性、积极性,丧失活力,也可能因为决策程序相对复杂而失去适应市场的弹性,丧失市场机会。()
(2010年联考.9月.74)随着商品流通、贸易往来、人际交流的越来越__________,远古时代那种依靠步行的交通方式以及手提、肩扛、头顶的运输方式已很难适应社会发展的需要,于是交通运输设施的兴建与运输工具的制造便__________。依次填入画横线
A.颈椎结核B.胸椎结核C.腰椎结核D.膝关节结核E.髋关节结核女,16岁。低热盗汗,腰痛2个月,右髂窝出现肿块,B超检查为液性,右髋关节屈曲活动受限,诊断考虑为
企业的IT管理工作,既是一个技术问题,更是一个管理问题。在企业IT管理工作的层次结构中,IT管理流程属于(54)。(2008年5月试题54)
下列安全设备中,不能部署在网络出口的是()。
DearJim,Hello,IlearnaboutyoufrommyEnglish【M1】______teacher,MissFang.I’dliketoyourpenfriend,andgetto【M2】
最新回复
(
0
)