首页
登录
职称英语
Scientists have been interested for years in the observation that ratios of
Scientists have been interested for years in the observation that ratios of
游客
2023-07-03
40
管理
问题
Scientists have been interested for years in the observation that ratios of finger lengths differ in men and women. In men, the ring(fourth)finger is usually longer than the index(second); their so-called 2D : 4D ratio is lower than 1. In females, the two fingers are more likely to be the same length. Because of this sex difference, some scientists believe that a low ratio could be a marker for higher prenatal hormone(激素)levels, although it’s not clear how the hormone might influence finger development. The 2D:4D ratio has also been fingered in connection with brain-related characteristics—most often in males—such as depression, left-handedness, musical ability, and homosexuality.
In the latest such study, psychologist Mark Brosnan and colleagues at the University of Bath in the United Kingdom photocopied the hands of 74 boys and girls aged 6 and 7. They compared the measurements of the second and fourth fingers with the children’s scores on a standard UK test of math and literacy. In boys, the lower the ratio, the better their math scores, the team reports in the May issue of the British Journal of Psychology. The boys with the lowest ratios also were the ones whose abilities were most skewed in the direction of math rather than literacy. These differences are small but significant, says Brosnan. With the girls, there was no correlation between finger ratio and numeracy, but those with higher ratios—presumably indicating low hormone levels—had better scores on verbal abilities.
These sex-specific correlations show how tricky it is to define the roles of sex hormones, says psychologist S. Marc Breedlove of Michigan State University in East Lansing. The range of normal levels of the hormone is different in males and females, so comparable levels would have very different meanings depending on the sex of the individual. And the timing of hormone surges is as important as the levels.
Nonetheless, Brosnan believes finger measurements might be useful for predicting cognitive abilities—although he acknowledges that "we are not suggesting that finger length measurements could replace SAT tests." Others are more cautious, pointing out that scientists still have not confirmed that finger ratio is a reliable marker for prenatal hormone levels. [br] What’s the main idea of this passage?
选项
A、Finger ratio is critical to people’s future.
B、Finger length measurements may be useful.
C、Finger length is related to children’s scores.
D、Finger ratio may be a reliable maker for prenatal hormone levels.
答案
B
解析
主旨大意题。文章主要围绕测量手指长度的实验研究及其结果展开叙述,故本题正确答案为B)。
转载请注明原文地址:https://tihaiku.com/zcyy/2805933.html
相关试题推荐
[originaltext]Climatechangeismakingitharderthanusualforscientists
Hollywoodhasamessageforscientists:Ifyouwantsomethingthat’s100%ac
Hollywoodhasamessageforscientists:Ifyouwantsomethingthat’s100%ac
[originaltext]M:Janetisquiteinterestedincamping,isn’tshe?W:Yes,sheo
[originaltext]M:Janetisquiteinterestedincamping,isn’tshe?W:Yes,sheo
[originaltext]M:Janetisquiteinterestedincamping,isn’tshe?W:Yes,sheo
[originaltext]M:Janetisquiteinterestedincamping,isn’tshe?W:Yes,sheo
[originaltext]M:Janetisquiteinterestedincamping,isn’tshe?W:Yes,sheo
[originaltext]Ateamofscientistsrecentlybeganaprojecttomeasurethe
[originaltext]Ateamofscientistsrecentlybeganaprojecttomeasurethe
随机试题
Hello,everybody.Goodafternoon,everybody.Today,Iwanttostartbyaddre
Manybusinessguestsliketoeatintheirrooms______.[originaltext]W:So,what
何谓TIPS?
生命价值论是______统一的理论A.生命神圣与人道论 B.生命神圣与生命质量
组方配伍体现补重于消的方剂是A.健脾丸 B.枳实消痞丸 C.保和丸 D.枳
自居作用,是指一个人把他所钦佩或崇拜的人的特点、某一团队或某种主张作为自己的特点
某单层服装仓库,长100m、宽60m、净高5m,该仓库采用自然排烟形式的设计方案
小蜗牛问妈妈:为什么我们从生下来,就要背负这个又硬又重的壳呢? 妈
气性坏疽的临床特点是A.局部红、肿、热、痛不明显 B.一般白细胞不升高 C.
()居于规划体系最上位,是其他各级各类规划的总遵循。A.国家发展规划 B
最新回复
(
0
)