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
That people often experience trouble sleeping in a different bed in unfamiliar surroundings is a phenomenon known as the "first-
That people often experience trouble sleeping in a different bed in unfamiliar surroundings is a phenomenon known as the "first-
admin
2021-01-06
63
问题
That people often experience trouble sleeping in a different bed in unfamiliar surroundings is a phenomenon known as the "first-night" effect. If a person stays in the same room the following night they tend to sleep more soundly. Yuka Sasaki and her colleagues at Brown University set out to investigate the origins of this effect.
Dr. Sasaki knew the first-night effect probably has something to do with how humans evolved. The puzzle was what benefit would be gained from it when performance might be affected the following day. She also knew from previous work conducted on birds and dolphins that these animals put half of their brains to sleep at a time so that they can rest while remaining alert enough to avoid predators (捕食者). This led her to wonder if people might be doing the same thing. To take a closer look, her team studied 35 healthy people as they slept in the unfamiliar environment of the university’s Department of Psychological Sciences. The participants each slept in the department for two nights and were carefully monitored with techniques that looked at the activity of their brains. Dr. Sasaki found, as expected, the participants slept less well on their first night than they did on their second, taking more than twice as long to fall asleep and sleeping less overall. During deep sleep, the participants’ brains behaved in a similar manner seen in birds and dolphins. On the first night only, the left hemispheres (半球) of their brains did not sleep nearly as deeply as their right hemispheres did.
Curious if the left hemispheres were indeed remaining awake to process information detected in the surrounding environment, Dr. Sasaki re-ran the experiment while presenting the sleeping participants with a mix of regularly timed beeps (蜂鸣声) of the same tone and irregular beeps of a different tone during the night. She worked out that, if the left hemisphere was staying alert to keep guard in a strange environment, then it would react to the irregular beeps by stirring people from sleep and would ignore the regularly timed ones. This is precisely what she found.
What did Dr. Sasaki do when re-running her experiment?
选项
A、She analyzed the negative effect of irregular tones on brains.
B、She recorded participants’ adaptation to changed environment.
C、She exposed her participants to two different stimuli.
D、She compared the responses of different participants.
答案
C
解析
推理判断题。文中第三段第一句指出,佐木博士在新的实验中将定时响起且音调不变的蜂鸣声和随时响起且音调各异的蜂鸣声混杂在一起,播放给睡眠中的参与者听。由此可知,参与者接受了两种不同的声音刺激。故答案为C)。
转载请注明原文地址:https://kaotiyun.com/show/TtO7777K
0
大学英语四级
相关试题推荐
A、AnewFrenchrestaurant.B、AChineserestaurant.C、AWesternrestaurant.D、AJapaneserestaurant.B男士说今年去新开的法国餐厅聚餐,明年去哪里聚餐由女士决
WhyMoneyDoesn’tBuyHappinessWhatdotheexpertssay?[A]Allinall,itwasprobablyamistaketolookfortheanswertothe
Overthelasttwoyears,inthePCbusinessMichaelDellhasbeenbeatenlikearentedmule.Hiscompanycontinuestolosemarke
A、Candy.B、Chocolate.C、Letters.D、Flowers.C
A、Themanreceivedaletterfromoneofhisoldfriends.B、ThemankeepsintouchwithJackforsomanyyears.C、Themanknowsv
A、Itwasveryexciting.B、Itwasprettyboring.C、Itwasveryinteresting.D、Itwasprettyhappy.B
A、Toshowhowsimplethemechanicalaidsfordivingcanbe.B、Toprovidereasonsforhischangeablecharacter.C、Toexplorethe
A、TheKing’sbirthday.B、Thestabilityofthemonarchy.C、Criticismfromboththeleftandtheright.D、TheKing’spublicdefen
Haiti’sTourismA)LikemanyofitsCaribbeanneighbors,Haitioncedrewmanytourists.Butdecadesofpoliticalinstability,
A、Makeanappointmentforaninterview.B、Sendinanapplicationletter.C、Fillinanapplicationform.D、Makeabriefself-intr
随机试题
容器中大量分子碰撞器壁的结果形成了气体对器壁的压力。压力就是单位面积容器壁面上所受的垂直力。()
某警犬队的警犬表现精神沉郁,喜卧厌动,活功时四肢无力,身躯摇晃。发热(40~41℃),持续3~5天后,有5~10天体温正常期,呈不规则间歇热型。渐进性贫血,结膜、黏膜苍白,食欲减少或废绝,营养不良,明显消瘦。触诊脾脏肿大:肾(双侧或单侧)肿大且疼痛,尿呈黄
城市维护建设税的计费基础是()。
甲公司欠张龙工程款人民币20万元,张龙初次做工程,要求甲公司支付20万元现金,甲公司告知张龙按照会计制度规定,无法支付现金,但可以开一张支票。让其自己到银行支取现金。张龙认真地查看了支票,上面记载有如下内容:金额20万元,收款人为张龙,出票日期为2013年
基金管理公司股东会依法可以行使的职权有()。Ⅰ.审议批准公司的年度财务预算方案Ⅱ.制订公司合并、分立、解散或者变更公司形式的方案Ⅲ.选举和更换董事Ⅳ.决定公司的经营方针和投资计划
“陕甘宁边区人民警察”是我国历史上最早的一支比较正规的人民警察队伍。()
王女士去超市购置了一批碗和碟,其中碗每只8元,碟每只5元,结账时这批碗和碟不超过18只,共计107元,则她购置的碗和碟分别有多少只?()
有两只桶,装有同样多的油。第一桶用去1/4,第二桶用去40%以后,再从第一桶取出8千克油倒入第二桶,这时第二桶油与第一桶油的比是13:14。则两桶原来各装有多少千克油?
Choosethecorrectletter,A,B,CorD.Writethecorrectletterinboxonyouranswersheet.Whatisthemainideaofthepass
花一周时间参加这样的会议将会是浪费时间。(awasteof)
最新回复
(
0
)