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
23
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
引起病毒性肝炎的病毒有:A.2种 B.3种 C.4种 D.5种
根据《水利工程设计概(估)算编制规定》(水总【2014】429号),下列属于河道
下列不属于家族信托的要素的是()。A.委托人 B.监察人 C.信托财
期货交易内幕信息包括()。A、期货交易所做出的可能对期货交易价格发生重大影响的
风湿性心瓣膜病左房室瓣狭窄最重要的体征是A.二尖瓣面容 B.肺动脉瓣区第二心音
患者,女性,患有风湿性关节炎及慢性心脏病,由于病情需要,现需服用普鲁卡因胺,该患
婴儿营养不良最常见的病因是A:先天不足 B:喂养不当 C:缺乏锻炼 D:疾
《变电验收管理规定第22分册站用变验收细则》:积聚在油浸式站用变气体继电器内的气
耶克斯一多德森的定律表明,学习效率和动机水平之间存在()。A.线性关系 B.
在什么情况下记账凭证不能直接修改()。A、已审核 B、未审核 C、已记账
最新回复
(
0
)