首页
登录
职称英语
American researchers found females are the more talkative sex because of a s
American researchers found females are the more talkative sex because of a s
游客
2024-02-04
24
管理
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." [br] 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://tihaiku.com/zcyy/3422179.html
相关试题推荐
AsaprofessoratalargeAmericanuniversity,Ioftenhearstudentssaying:
AsaprofessoratalargeAmericanuniversity,Ioftenhearstudentssaying:
AsaprofessoratalargeAmericanuniversity,Ioftenhearstudentssaying:
AsaprofessoratalargeAmericanuniversity,Ioftenhearstudentssaying:
AsaprofessoratalargeAmericanuniversity,Ioftenhearstudentssaying:
AsaprofessoratalargeAmericanuniversity,Ioftenhearstudentssaying:
AsaprofessoratalargeAmericanuniversity,Ioftenhearstudentssaying:
WhatYouReallyNeedtoKnowA)Aparadox(悖论)ofAmerican
WhatYouReallyNeedtoKnowA)Aparadox(悖论)ofAmerican
WhatYouReallyNeedtoKnowA)Aparadox(悖论)ofAmerican
随机试题
Iwasabouttofallasleep______therewasaknockatthedoor.A、asB、whileC、the
One________symptomofthediseaseisprogressivelossofmemory.A、significantB、
[originaltext]M:I’mlongingtohearaboutyourtourofAmerica,Jenny.Youmus
Inorderto“changelivesforthebetter
以下关于叶适功利之学内容正确的是( )。A.叶适认为立国之本在于“礼臣”“恤刑
截至2007年12月,我国网民中使用手机上网的人数达到()。 A.619
汉武帝元封五年“初置刺史部十三州”代表中央以监察各州,到了东汉末年汉灵帝改为州牧
被朱熹称为“为学之序”的“博学之,审问之,慎思之,明辨之,笃行之”出自()。
根据我国招投标相关法规,必须招标的工程项目()。A.使用预算资金100万元
根据《建设工程质量管理条例》,建设工程竣工验收应具备的工程技术档案和施工管理资料
最新回复
(
0
)