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
94
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
Theargumentthatglobalwarmingiscausingmoreextremeweatherisproblematicbecauseitpresumestheglobeiswarming.Infac
A、Becauseheisburdenedwithdebts.B、Becausehegetsintotroublewithwork.C、Becausehecan’taccepthisfailure.D、Because
Graduatingseniorsmayfacehigherriskforjobburnout(筋疲力尽,枯竭)thantheirparents’generation,saybusinessandcareerexperts.
Whatwouldittaketopersuadeyoutoexercise?A【C1】______toloseweightorimproveyourfigure?Tokeepheartdisease,cancer
HaitiDreamsofTourismRevivalA)LikemanyofitsCaribbeanneighbors,Haitioncedrewmanytourists.Butdecadesofpolitical
A、They’vemetbefore.B、Hedoesnotrememberthewoman.C、Thewomanshouldagreewithhim.D、Theyhavenevermetbefore.A对话中男士提
A、Sleepforawhile.B、Bealertabouthisreport.C、Takesomecoffee.D、Dosomephysicalexercises.D对话中女士提到的physicalactivitym
随机试题
简述国际税法的基本原则包括。
肝气乘脾,大便的异常可出现
8个月婴儿,腹泻3日入院。查体:精神萎靡,呼吸深长,皮肤发花,皮肤弹性差,前囟眼眶明显凹陷,肢冷,脉弱,心率130次/分,心音较弱,考虑诊断
水泥的安定性一般是指水泥在凝结硬化过程中()变化的均匀性.
工期延误实际的后果是()。
什么是独立配送与共同配送模式?它们的区别是什么?
选择幼儿园课程内容的基本原则是什么?
关于婴幼儿骨骼生长,下列说法不正确的是()。
对序线性表(23,29,34,55,60,70,78)用二分法查找值为60的元素时,需要比较次数为()。
YouwillhearaninterviewwithPaulaShannon,thetopfemaleexecutiveatLionbridgeTechnologies,aglobalfirmthatprovides
最新回复
(
0
)