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
2017-08-15
80
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 find about the participants in her experiment?
选项
A、They tended to enjoy certain tones more than others.
B、They tended to perceive irregular beeps as a threat.
C、They felt sleepy when exposed to regular beeps.
D、They differed in their tolerance of irregular tones.
答案
B
解析
本题可参照文章的第3段。从文章的第3段可知,因为大脑左半球将不规律蜂鸣声视作陌生环境下的威胁,所以大脑左半球会对打扰人们睡眠的不规律蜂鸣声做出反应。据此可知,B项正确。A项不正确,文中没有介绍参与者是否更享受某种音调。C、D两项不正确,文中并未提及。B项与文章的意思相符,因此B项为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/tdFO777K
0
考博英语
相关试题推荐
Doyouagreeordisagreewiththefollowingstatement?Peopleneversatisfiedwithwhattheyhave.Theyalwayswantsomethin
Thedaywasbreakingandpeoplebegantogotoworksothemurdererwasunableto_____ofthebody.
Everyoneitseemshasahealthproblem.AfterpouringbillionsintotheNationalHealthService,Britishpeoplemoanaboutdirty
Althoughthefalsebanknotesfooledmanypeople,theydidnot____toacloseexamination.
Thelowoperatingcostsoftheforeigncompanywill_____thehighlaborcoststhebusinesspaysinitsowncountry.
Thedaywasbreakingandpeoplebegantogotoworksothemurdererwasunableto_____ofthebody.
IworkasanofficeassistantinasmallbutgrowinggardenequipmentmanufacturingcompanyinCalifornia.Afewmonthsago,my
Publicimagereferstohowacompanyisviewedbyitscustomers,suppliers,andstockholders,bythefinancialcommunity,bythe
Publicimagereferstohowacompanyisviewedbyitscustomers,suppliers,andstockholders,bythefinancialcommunity,bythe
随机试题
f______n.流利
求56的水平、垂直渐近线.
心理治疗中,医生要设身处地的理解患者,把患者的内心世界理解为好像是自己的,能分享患者的情感。这是
房屋产权人甲某委托某房地产中介服务机构丙公司将其房屋一次性出租,经丙公司关系甲某与承租人乙某签订了租赁合同,进行了租赁登记备案,租期自2005年6月10日开台,为期半年,实际成交月租金500元。2006年3月,甲某欲出售该房屋,又委托丙公司肖售,经丙公司联
工业炉窑砌筑工程工序交接证明书中,应提供炉内托砖板和锚固件等的位置、尺寸及其_______证明。()
某城市给水工程项目业主委托了一监理单位进行监理,在委托监理任务之前,业主与施工单位已经签订施工合同。监理单位在执行合同中陆续遇到一些问题需要进行处理,若你作为一名监理工程师,对遇到的下列问题,应提出怎样的处理意见。问题在施工招标文件中,按工
甲公司2014年10月1日与乙公司签订一项咨询合同,该合同于当日生效。合同约定,咨询期为2年,咨询费为500万元。甲公司估计咨询劳务总成本为300万元。2014年发生的成本为30万元,预计还将发生成本270万元;2015年发生成本160万元,预计还将发生成
王小明常年居住在某市A区,他在该市C区开了一家电器修理店,但是办理的个体工商户营业执照登记的业主却是常年居住在该市B区的王大明,而王大明实际上并不经营该电器修理店。2011年1月,在王小明店中打工的李好(常年居住在该市D区)在为客户武钢修理一台彩电时,由于
Intheearly20thcentury,ahorsenamedCleverHanswasbelievedcapableofcountingandotherimpressivementaltasks.Aftery
They______inAmericaonSeptember9th.
最新回复
(
0
)