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
A、A flood of sex hormones in first-time mothers. B、Great reduction in sex hormones in first-time mothers. C、A flood of grey matt
A、A flood of sex hormones in first-time mothers. B、Great reduction in sex hormones in first-time mothers. C、A flood of grey matt
admin
2021-09-29
78
问题
Scans of 25 first-time moms showed these structural brain changes lasted for at least two years after giving birth. European researchers said the scale of brain changes during pregnancy were similar to those seen during adolescence.
But they found no evidence of women’s memory deteriorating.
Many women have said that they feel forgetful and emotional during pregnancy and put it down to "pregnancy" or "baby" brain—and, it seems, with good reason.
Pregnancy is characterized by extreme rise of sex hormones and involves drastic physiological and physical changes in the body, the researchers say.
During those nine months, women experience a flood of estrogen which is greater than for the whole of the rest of their lives.
Yet research on the effects of pregnancy on the human brain is scarce.
This study, from researchers at the Universitat Autonoma de Barcelona and Leiden University and published in Nature Neuroscience, looked at the brain scans of women before they became pregnant, soon after they gave birth, and two years later, to see how the brain changed.
And they compared these women’s brains with those of 19 first-time fathers, 17 men without children and 20 women who had never given birth. The researchers found substantial reductions in the volume of grey matter in the brains of first-time mothers.
The grey matter changes occurred in areas of the brain involved in social interactions used for attributing thoughts and feelings to other people—known as " theory-of-mind" tasks.
The researchers thought this would give new mothers an advantage in various ways—help them recognize the needs of their children, be more aware of potential social threats and become more attached to their babies.
Questions 19 to 22 are based on the recording you have just heard.
19.What can we learn about the brain changes in first-time moms?
20. Which is an obvious character of pregnancy according to the researchers?
21.What did the researchers at the Universitat Autonoma de Barcelona and Leiden University find?
22.How would grey matter changes benefit new mothers according to the researchers?
选项
A、A flood of sex hormones in first-time mothers.
B、Great reduction in sex hormones in first-time mothers.
C、A flood of grey matter in first-time mothers’ brains.
D、Great reduction in grey matter in first-time mothers’ brains.
答案
D
解析
讲座中提到,研究人员发现初产妈妈的脑灰质会大量减少。因此答案为D)。
转载请注明原文地址:https://kaotiyun.com/show/eIx7777K
0
大学英语六级
相关试题推荐
生活标准/生活水平
Inrecentyears,publishers,directorsandTVproducershavetakenakeeninterestinpopularonlinenovels,thankstotheirori
A、Itmayharmthecultureoftoday’sworkplace.B、Itmayhinderindividualcareeradvancement.C、Itmayresultinunwillingness
A、Higherprices.B、Moredemand.C、Lowerimportduties.D、Rapidgrowth.C细节辨认题。对话最后,女士明确指出,之所以家具的利润稍微高一点,是因为家具的关税低一些。因此答案为C)。
Thedreamofpersonalisedflightisstillvividinthemindsofmanyinventors,somedevelopingcycle-poweredcraft,others【C1】_
A、Therecentfindingofachangedgeneinobesemice.B、Thenewdevelopmentofgenesandhormones.C、Thesimilaritybetweenhuma
A、Checkoutthelatestpricereductiononline.B、Lookroundforitemsinthephysicalstores.C、Ordertheproductsfromtheonli
A、Thepolicewillbetherewithteargas.B、Itwilllastalmost11hourstomorrow.C、Itwillbeheldonthecampus.D、Cleo’ssis
A、Afloodofsexhormonesinfirst-timemothers.B、Greatreductioninsexhormonesinfirst-timemothers.C、Afloodofgreymatt
随机试题
Wheredoestheconversationmostlikelytakeplace?
慢性肾衰竭患者可出现的电解质紊有
A.药品外包装材料B.医院制剂C.未实施批准文号管理的中药材D.新发现和从国外引种的药材根据《中华人民共和国药品管理法》:药品经营企业可以从城乡集贸市场购进的药品是
下列哪一项不属于财产险损失调查中要事项?()
甲、乙、丙系三兄妹。2006年父母去世后留下房产一处,由甲居住。2007年1月,甲持房屋产权证到房地产管理部门办理产权变更,将房屋登记在自己一人名下,并取得房屋产权证书。2007年9月,甲将该房屋卖给丁,丁付给甲房款60万元。丁取得该房屋产权证。2008年
我国海关法规定,减免进出口关税的权限属于中央政府。关税减免形式主要包括()。
小学生飞飞在生活中比较冒失,经常不经过仔细、全面思考就风风火火地去做事,导致总是好心办坏事,这说明飞飞的()意志品质还需要进一步发展。
19世纪俄国化学家门捷列夫,不分昼夜地研究探求着元素的化学特性,企图捕捉元素的共同性。他将当时已知元素的主要性质和原子量,写在一张张小卡片上进行反复排列比较。他的脑子常因过度紧张而昏眩,但他的心血没有白费,最后终于发现了元素周期规律。从这个事例可以看出,非
在考生文件夹下有一个数据库文件"samp2.mdb",在samp2.mdb数据库中有"档案表"和"工资表"两张表,试按以下要求完成设计:(1)建立表对象"档案表"和"工资表"的关系,创建一个选择查询,显示职工的"姓名"、"性别"和"基本工资"3个字段内容
FromhumblebeginningsinagarageinMenloPark,Californiain1998,Googlehasgrownintoamultinationalcompanycarryingout
最新回复
(
0
)