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
2023-07-03
45
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/2805913.html
相关试题推荐
AmericansandTheirCarsA)Ithasbeenoneoftheworld’
AmericansandTheirCarsA)Ithasbeenoneoftheworld’
AmericansandTheirCarsA)Ithasbeenoneoftheworld’
AmericansandTheirCarsA)Ithasbeenoneoftheworld’
AmericansandTheirCarsA)Ithasbeenoneoftheworld’
SinceearlycolonialtimesAmericanpeoplehaveshownagreatconcernfored
Onaverage,Americankidsages3to12spent29hoursaweekinschool,eigh
Onaverage,Americankidsages3to12spent29hoursaweekinschool,eigh
Onaverage,Americankidsages3to12spent29hoursaweekinschool,eigh
Onaverage,Americankidsages3to12spent29hoursaweekinschool,eigh
随机试题
Themostimportantpartofanytherapyis______(不在于你领悟到什么或谈论什么,而在于你做了什么).notw
Youshouldspendabout20minutesonQuestions14-26whicharebasedonReading
MyPCisoutoforder,theexperimenthastobeputoff.A、beingB、wasC、beD、has
考虑到自重影响,现浇钢筋混凝土梁、板结构应按设计要求起拱的目的是:()A.提
服务产品质量难以界定的原因是()。A.服务产品可以从实体上被感知 B.顾
判定一份评估报告是否提供了必要的信息,其标准是()。A.要看评估报告使用人在阅
Thechangeinthatvillagewasmiraculou
内毒素的主要成分是A.磷脂B.脂多糖C.蛋白质D.胶原E.无机盐类
关于城市设计和控制性详细规划的表述,下列哪些项是不准确的?()(2010年
(2016年真题)关于电缆排管敷设要求的说法,正确的是()。A.排管孔径应不小
最新回复
(
0
)