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
American researchers found females are the more talkative sex because of a special "language protein" in the brain. The study, c
American researchers found females are the more talkative sex because of a special "language protein" in the brain. The study, c
admin
2015-07-31
101
问题
American researchers found females are the more talkative sex because of a special "language protein" in the brain. The study, compiled by neuroscientists and psychologist from the University of Maryland, concluded that women talked more because they had more of the Foxp2 protein. Their findings come after it was previously claimed that ladies speak about 20 000 words a day—more than 13 000 more than men.
"This study is one of the first to report a sex difference in the expression of a language-associated protein in humans or animals," said Prof. Margaret McCarthy, who led the study. "The findings raise the possibility that sex differences in brain and behavior are more pervasive(普遍的)and established earlier than previously appreciated."
The research, published in the Journal of Neuroscience, found that higher levels were found among humans that were women but in rats they were males.
In the experiment, the researchers attempted to determine what might make male rats more vocal(有声的)than their female friends. They separated four-day-old rats from their mothers and then counted the number of times they cried out over five minutes. While both sexes emitted hundreds of cries, the males called out twice as often, they found. According to tests compiled on the parts of the brain known to be involved in vocal calls,the male pups(幼崽)have up to twice as much Foxp2 protein as the females. The researchers then increased the production in the brains of female pups and reduced it in males. This led to the female rats crying out more often. In contrast, males became less "talkative".
The researchers then tested samples from ten children, aged between three and five, which showed that females had up to a 30 percent more of the Foxp2 protein than males, in a brain area key to language in humans.
"Based on our observations, the assumption of higher levels of Foxp2 in girls and higher levels of Foxp2 in male rats is an indication that Foxp2 protein levels are associated with the more communicative sex," said Prof. McCarthy. "Our results implicate Foxp2 as a component of the neurobiological basis of sex differences in vocal communication in mammals."
What is the best title of this passage?
选项
A、Why Are Women the Talkative Sex?
B、What Makes Us So Communicative?
C、How Can We Determine Rat’s Sex?
D、Sex Differences Decide Our Communicative Ability
答案
A
解析
主旨大意题。由本文可知,文章开头两句指出了研究主题:女性爱说话的原因。在下文的两项实验中,无论是女性Foxp2蛋白含量较高,还是雄性鼠类的Foxp2蛋白含量较高,研究最终要确定为什么女性爱说话,故正确答案为A)。
转载请注明原文地址:https://kaotiyun.com/show/Oul7777K
0
大学英语四级
相关试题推荐
AsaprofessoratalargeAmericanuniversity,Ioftenhearstudentssaying:"I’monlya1050."Theunluckystudentsarespeaki
A、How"GreatAmericanDream"isbroken.B、Fiercecompetitionintheworkplace.C、Worshiponmoneyandsocialstatus.D、Thecruel
WhyTeenagersReallyDoNeedanExtraHourinBed?A)"Makingteensstartschoolinthemorningis’cruel’,"braindoctorclaim
A、ThewestcoastofCanada.B、ABritishseasideresort.C、Sardinia.D、TheRockymountains.A对话中男士提到他所去过的地方中,最喜欢的是加拿大的西海岸,故答案为A)。
Whatwouldittaketopersuadeyoutoexercise?A【C1】______toloseweightorimproveyourfigure?Tokeepheartdisease,cancer
Whatwouldittaketopersuadeyoutoexercise?A【C1】______toloseweightorimproveyourfigure?Tokeepheartdisease,cancer
HaitiDreamsofTourismRevivalA)LikemanyofitsCaribbeanneighbors,Haitioncedrewmanytourists.Butdecadesofpolitical
A、Shedidn’tgotothegame.B、Shealsoleftthegamebeforeitwasover.C、She’salsocuriousaboutwhowonthegame.D、Shewas
A、Sleepforawhile.B、Bealertabouthisreport.C、Takesomecoffee.D、Dosomephysicalexercises.D对话中女士提到的physicalactivitym
随机试题
在确定计税价值和税基的评估时,税收征管部门通常要求使用的价值类型是()。
社会主义初级阶段和新民主主义社会的区别是什么?
再植牙成功的标准中,错误的是
A.中粉B.细粉C.最细粉D.极细粉E.超细粉除另有规定外,儿科用散剂应为()。
以下关于公路运输的特点,说法错误的是()。
某进出口公司(增值税一般纳税人)2011年2月报关进口笔记本电脑45000台,每台关税完税价格为6400元,进口关税税率为60%。已交进口关税和海关代征的增值税,并已取得增值税完税凭证。当月以不含税售价每台8600元全部售出。要求:根据上述资料,回答下题
股东大会通过当次发行议案之日起( )个工作日内,上市公司应当公布股东大会决议。
在社会生产过程中起决定作用的环节是()。
Manystudentsfindtheexperienceofattendinguniversitylecturestobeaconfusingandfrustratingexperience.Thelecturersp
SoonafterstartinghisjobassuperintendentoftheMemphis,Tenn.,publicschools,KrinerCashorderedanassessmentofhisne
最新回复
(
0
)