首页
登录
职称英语
Before a big exam, a sound night’s sleep will do you more good than poring ove
Before a big exam, a sound night’s sleep will do you more good than poring ove
游客
2023-12-15
74
管理
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 ff 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. [br] What advice might Maquet give to those who have a crucial test the next day?
选项
A、Memorizing grammar with great efforts.
B、Study textbooks with close attention.
C、Have their brain images recorded.
D、Enjoy their sleep at night soundly.
答案
D
解析
主旨题。正确选项为D“在晚上好好地睡觉”,这是一个对通篇的中心归纳的考查题,在晚上好好睡觉对记忆是有好处的。而选项A“努力地记忆语法”,选项B“认真地研究课本”和选项C“记录自己的脑呈像”都不是他的明显建议,尽管这些错误的选项都使用了原文中的某些表达和单词。
转载请注明原文地址:https://tihaiku.com/zcyy/3276881.html
相关试题推荐
BeforeKeynes,economistsweregloomynaysayers."Nothingcanbedone","Don
Crimehasitsowncycles,amagazinere-portedsomeyearsbefore.Policere
Crimehasitsowncycles,amagazinere-portedsomeyearsbefore.Policere
Crimehasitsowncycles,amagazinere-portedsomeyearsbefore.Policere
WhenIappearedbeforeyouonapreviousoccasion,IhadseennothingofAmer
WhenIappearedbeforeyouonapreviousoccasion,IhadseennothingofAmer
WhenIappearedbeforeyouonapreviousoccasion,IhadseennothingofAmer
WhenIappearedbeforeyouonapreviousoccasion,IhadseennothingofAmer
Beforeconsideringthisquestionitisinterestingtoreviewbrieflytheev
Beforeconsideringthisquestionitisinterestingtoreviewbrieflytheev
随机试题
动作连贯流畅、和谐有弹性反映了练习的()。A.动作节奏 B.动作的精确性 C
材料的比热容越大,其导热性越好。()
南京爱德华印刷公司是全国最大的《圣经》印刷厂,目前已印刷各类《圣经》超过(
下列无语病的一句是()。 A手机价格降得最厉害,同一型号的手机年末和年初的
市场营销环境是指作用于企业营销活动的一切外界因素和力量的总和,可以分为宏观环境和
于咳少痰,痰中夹血,口干咽燥,午后潮热,手足心热,盗汗,神疲,舌红少苔,脉细数者
风险分析程序包括:①风险对策,②风险估计,③风险评价,④风险识别等步骤。这些步骤
在弥补完公司以前年度亏损后,如果法定盈余公积尚未达到注册资本的50%,剩余利润应
根据《水利水电工程劳动安全与工业卫生设计规范》GB50706-2011,采用开敝
现浇混凝土梁侧模拆除时其混凝土强度应满足的基本条件是()。A.达到设计要求
最新回复
(
0
)