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
76
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
AsaprofessoratalargeAmericanuniversity,Ioftenhearstudentssaying:"I’monlya1050."Theunluckystudentsarespeaki
Theargumentthatglobalwarmingiscausingmoreextremeweatherisproblematicbecauseitpresumestheglobeiswarming.Infac
A、How"GreatAmericanDream"isbroken.B、Fiercecompetitionintheworkplace.C、Worshiponmoneyandsocialstatus.D、Thecruel
WhyTeenagersReallyDoNeedanExtraHourinBed?A)"Makingteensstartschoolinthemorningis’cruel’,"braindoctorclaim
Whatwouldittaketopersuadeyoutoexercise?A【C1】______toloseweightorimproveyourfigure?Tokeepheartdisease,cancer
Whatwouldittaketopersuadeyoutoexercise?A【C1】______toloseweightorimproveyourfigure?Tokeepheartdisease,cancer
Fatterpeoplearemorelikelytolosetheirmemoriesandbrainpowerquickerthanthosewhoarethinner,accordingtoBritishre
Fatterpeoplearemorelikelytolosetheirmemoriesandbrainpowerquickerthanthosewhoarethinner,accordingtoBritishre
A、ReadingChapter6andfinishtheexercises.B、Dividingtheclassintoseveralgroups.C、Thinkingoutatopiconsustainablede
随机试题
量子计算技术快速发展对现有的密码技术构成极大的威胁和挑战,一旦实用化量子计算出现,将导致基于离散对数、整数分解的公钥密码体制直接被快速________,意味着当前所使用的网络信息系统不再安全。为应对此类________威胁,美国和欧洲已经启动了抗量子计算攻
独立自主和平外交政策的基本原则,是我国对外交往活动的根本准则。()
患者胃肠热盛,大便秘结,腹满硬痛而拒按,潮热,神昏谵语,但又兼见面色苍白,四肢厥冷,精神萎顿。其病机是
承包人向发包人的索赔包括()。
热力管道保温施工时,同层的预制管壳应(),内、外层应(),外层的水平接缝应在()。
能够简化登记总分类账工作的账务处理程序有( )。
关于教师资格认定的说法,以下表述正确的是()。
领导能力的评价依据是( )。
Thefitnessmovementthatbeganinthelate1960sandearly1970scenteredaroundaerobicexercise(有氧操).Millionsofindividual
Themostconsistentlyidentifiedteachereffectivenessvariableistimeontask.Thatis,themoretimethatstudentsspendon
最新回复
(
0
)