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
The business practices of America will have you in the office from nine in the morning to five in the evening, if not longer. Mu
The business practices of America will have you in the office from nine in the morning to five in the evening, if not longer. Mu
admin
2022-11-05
36
问题
The business practices of America will have you in the office from nine in the morning to five in the evening, if not longer. Much of the world, though, prefers to take a nap. And research presented to the AAAS (American Academy of Arts and Sciences) meeting in San Diego suggests it may be right to do so. Matthew Walker and his colleagues at the University of California, Berkeley, have found that they probably have better memory, too. A post-meal snooze, Dr Walker has discovered, sets the brain up for learning.
The role of sleep in consolidating memories that have already been created has been understood for some time. Dr Walker has been trying to extend this understanding by looking at sleep’s role in preparing the brain for the formation of memories in the first place. He was particularly interested in a type of memory called episodic memory, which relates to specific events, places and times. This contrasts with procedural memory, of the skills required to perform some sort of mechanical task, such as driving. The theory he and his team wanted to test was that the ability to form new episodic memories deteriorates with increasing wakefulness, and that sleep thus restores the brain’s capacity for efficient learning.
They asked a group of 39 people to take part in two learning sessions, one at noon and one at 6pm. On each occasion the participants tried to memorize and recall 100 combinations of pictures and names. After the first session they were assigned randomly to either a control group, which remained awake, or a nap group, which had 100 minutes of monitored sleep. Those who remained awake throughout the day became worse at learning. Those who napped, by contrast, actually improved their capacity to learn, doing better in the evening than they had at noon. These findings suggest that sleep is clearing the brain’s short-term memory and making way for new information.
The benefits to memory of a nap, says Dr Walker, are so great that they can equal an entire night’s sleep. He warns, however, that napping must not be done too late in the day or it will interfere with night-time sleep. Moreover, not everyone awakens refreshed from a nap. The dazedness that results from an unrefreshing nap is termed "sleep inertia". Sara Mednick, from the University of California, San Diego, suggests that non-habitual nappers suffer from this more often than those who snooze regularly. It may be that those who have a tendency to wake up dazed are choosing not to nap in the first place. Perhaps, though, as in so many things,
it is practice that makes perfect
.
Dr. Walker has been trying to find out ________.
选项
A、the role of sleep in enhancing memory that has been created
B、the relationship between episodic memories and sleep
C、the role of brain in forming new episodic memories
D、differences between episodic and procedural memories
答案
B
解析
根据Dr. Walker has been trying可定位到第二段。该段第五句说,沃克博士和他的研究小组想检验这一理论,即形成新的片段记忆的能力随着不眠的增加而下降,因此睡眠可以修复大脑高效学习的能力。由此可知,Dr. Walker想要知道的是片段记忆和睡眠的关系,所以B项正确。根据第二段第一句,A项是已经知道的事实,所以沃克博士不需要再去研究,故可排除。沃克博士要研究的是睡眠的作用而不是大脑的作用,C项张冠李戴。文中虽然提到片段记忆和程序性记忆不同,但根据第二段第三四句,它们的差异是已经知道的(片段记忆与特定的事件、地点和时间相关,而程序性记忆具有执行某种机械性工作如驾驶的技能),因此沃克博士不需要再研究它们的区别,由此可排除D项。
转载请注明原文地址:https://kaotiyun.com/show/zyi4777K
0
考研英语二
相关试题推荐
WhentheAmericaneconomywasrunningfulltilttwoyearsago,fewplaceswereasbreathlesslydelightedasSeattle.Itsportwa
ThewriterwarnsAmericansthat______.Whatistheconclusionofthispassage?
Nowmedicalresearchersarediscoveringatruism:"alcoholandtobaccodonotmix."Thesetwosubstances,bothdangeroustoheal
America’seconomicrecoveryremainsuncomfortablyweak.Thelatestdatashowindustrialproductionfallingwhilethetradedefic
YouhavejustcomebackfromtheU.S.asamemberofaSino-Americanculturalexchangeprogram.WritealettertoyourAmerican
Nameshavegainedincreasingimportanceinthecompetitiveworldofhighereducation.Ascollegesstriveformarketshare,they
MillionsofAmericansandforeignersseeG.I.Joeasamindlesswartoy,thesymbolofAmericanmilitaryadventurism,butthat’
Everyone,itseems,hasahealthproblem.AfterpouringbillionsintotheNationalHealthService,Britishpeoplemoanaboutdir
Asimpleideasupportsscience:"trust,butverify".Resultsshouldalwaysbe【C1】________tochallengefromexperiment.Thatsimp
Asimpleideasupportsscience:"trust,butverify".Resultsshouldalwaysbe【C1】________tochallengefromexperiment.Thatsimp
随机试题
下述哪些过程需要细胞本身耗能
取水分穴治疗泄泻的作用为
毛细血管瘤最显著的特点是()
高热烦躁,神昏谵语,项背强直,甚则角弓反张,舌质红绛,苔黄少津,脉细数,宜选用()
【2013专业知识真题下午卷】综合分析低压配电系统的各种接地形式,对于有自设变电所的智能型建筑最适合的接地形式是下列哪一种?()
某企业“坏账准备”科目的年初余额为4000元,“应收账款”和“其他应收款”科目的年初余额分别为30000元和10000元。当年,不能收回的应收账款2000元确认为坏账损失。“应收账款”和“其他应收款”科目的年末余额分别为50000元和20000元,假定该企
皇家园林的特点是规模较小,常用假山假水,建筑小巧玲珑,表现其淡雅素净的色彩。()
实施心理测验时主测者的职责是()。
心理暗示,是指人或环境以非常自然的方式向个体发出信息,个体无意中接收这种信息,从而做出相应反应的一种心理现象。根据定义,不会给人带来心理暗示的是()。
Thetreasuryissuedanorderstatingthat______landpurchasedfromthegovernmenthadtobepaidforingoldandsilver.
最新回复
(
0
)