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
A、Caffeine may help people think clearly. B、Caffeine helps keep people more awake. C、Caffeine gives a jumpstart to the nervous s
A、Caffeine may help people think clearly. B、Caffeine helps keep people more awake. C、Caffeine gives a jumpstart to the nervous s
admin
2015-01-03
61
问题
Many people say they cannot start their day without first having a cup of coffee or tea. People say these drinks help them think clearly and feel more awake. This is because of caffeine, a substance found in many plants.
Caffeine helps to give a jumpstart to the nervous system. Now a new report says it may also improve long-term memory. Michael Yassa is a neurobiology professor at the University of California. He and other researchers wanted to know if caffeine could improve what they called memory consolidation. They asked a group of individuals to learn something new, and then the same people were given caffeine, the active ingredient in coffee, tea and chocolate.
He and the other researchers worked with a group of 160 people who were caffeine free. On the first day, all the subjects were shown pictures of everyday objects. They were asked to identify whether the pictures could be found inside the house or outdoors. Some of the subjects were then given a caffeine pill; the others were given a pill containing an inactive substance.
On the second day, all of the subjects were asked to look at more pictures.
Some of the images were exactly like the ones they had seen 24 hours early. But other images were different. And a third group of pictures was similar to the first group but a little different. The participants had to decide whether the images they saw were the same or different from the ones on the first day.
Professor Yassa says their answers help to show the effects of caffeine on memory. He says those who took the caffeine pills had a ten to twelve percent increase in their ability to remember the objects. The amount of caffeine the researchers used in the study was similar to one strong cup of coffee.
Q10: How many subjects were involved in Professor Yassa’s study?
Qll: What were the subjects asked to look at on the second day?
Q12: Which was one of the findings of the study?
选项
A、Caffeine may help people think clearly.
B、Caffeine helps keep people more awake.
C、Caffeine gives a jumpstart to the nervous system.
D、Caffeine may improve memory consolidation.
答案
D
解析
文中:服用了咖啡因药片者记住这些物体的能力提高了10%~12%。研究人员使用的咖啡因用量近似于一杯浓咖啡。
转载请注明原文地址:https://kaotiyun.com/show/yLHO777K
0
研究生英语学位课统考(GET)
相关试题推荐
Theideathatsomegroupsofpeoplemaybemoreintelligentthanothersisoneofthosehypothesesthatdarenotspeakitsname.
Theroughguidetomarketingsuccessusedtobethatyougotwhatyoupaidfor.Nolonger.Whiletraditional"paid"media—such
Thebeliefthatthemindplaysanimportantroleinphysicalillnessgoesbacktotheearliestdaysofmedicine.Fromthetimeo
Aroundtheworldmoreandmorepeoplearetakingpartindangeroussportsandactivities.Ofcourse,therehavealwaysbeenpeop
Sciencehaslonghadanuneasyrelationshipwithotheraspectsofculture.ThinkofGallileo’s17thcenturytrialforhisrebell
(厦门大学2014年试题)Mostpeoplewhotravellongdistancescomplainofjetlag(喷气飞行时差反应).Jetlagmakesbusinesstravelerslessprodu
Hisofficeis______tothePresident’s;itusuallytakeshimaboutthreeminutestogetthere.
EveryonehasbeentryingtounderstandMichaelJackson’sdeaththissummer.Whilemedicsarestillpickingathisslendercorpse
A、Itwasjustso-so.B、Itwasreallyspecial.C、Itwasquitegood.D、Itwasawful.A男士说:你昨晚看的电影怎么样?女士说:还不错。影片的场景相当有趣,动作也可以。但是7美元
A、Writeashortmailtohim.B、Chatwithhimonline.C、Telephonehim.D、Texthimsoon.A男士说:很高兴认识你,希望能再次见面。有时间给我写信。女士说:当然,我会的。dr
随机试题
环保行政主管部门应在收到申请环保设施竣工验收之日起()日内完成验收。
下列经济业务中,引起会计恒等式左右两方同时发生增减变化的有()。
具有较高提前赎回可能性的债券应具有较高的票面利率,其内在价值相对较高。()
甲欲申请注册登记为财务顾问主办人,但由于他负有500万的未到期债务,因此不能获批准。( )
(本题可用英文作答)A建筑公司其注册地在甲地,为增值税一般纳税人,2017年2月一5月其业务情况如下:(1)2017年2月通过招投标取得乙地甲供工程项目,其全部工程价款为5000万元,且甲方提供一切工程所需材料、设备。因A建筑公司建造能力有限,经甲方
投入某种物质商品生产过程中的活劳动量不变,如果劳动生产率提,在单位劳动时间内生产的商品数量和单位商品的价值量的变化表现为()。
In the following essay, each blank has four choices. Choose the most suitable one from the four choices and write down in the an
•Lookattheformbelow.•Youwillhearacustomercallingthecouriercompany.FlyHighCourierMissingItemRecordDeli
【S1】【S6】
Hungryprehistorichunters,notclimatechange,droveelephantstoextinctionduringthePleistoceneera(更新世),newresearchsug
最新回复
(
0
)