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
Since about 1970, new research has helped brain scientists understands these problems better. Scientists now know there are many
Since about 1970, new research has helped brain scientists understands these problems better. Scientists now know there are many
admin
2009-06-15
76
问题
Since about 1970, new research has helped brain scientists understands these problems better. Scientists now know there are many different kinds of learning disabilities and that they are caused by many different things. There is no longer any question that all learning disabilities result from differences in the way the brain is organized. You can’ t look at a child and tell if he or she has a learning disability. There is no outward sign of the disorder. So some researchers began looking at the brain itself to learn what might be wrong.
In one study, researchers examined the brain of a learning disabled person who had died in an accident. They found two unusual things. One involved cells in the left side of the brain, which control language. These cells normally are white. In the learning disabled person, however, these ceils were gray. The researchers also found that many of the nerve ceils were not in a line the way they should have been. The nerve cells were mixed together.
The study was carried out under the guidance of Norman Geschwind, an early expert on learning disabilities. Doctor Geschwind proposed that learning disabilities mainly resultes from problems in the left side of the brain. He believed this side of the brain failed to develop normally. Probably, he said, nerve cells there didn’t connect as they should. So the brain was like an electrical device in which the wires were crossed.
Other researchers didn’t examine brain tissue. Instead, they measured the brain’s electrical activity and made a map of the electrical signals.
Frank Dully experimented with this technique at Children’s Hospital Medical Center in Boston. Dr. Duffy found large differences in the brain activity of normal children and those with reading problems. The differences appeared throughout the brain. Dr. Dully said his research is evidence that reading disabilities involve damage to a wide area of the brain, not just the left side.
选项
A、structure and function
B、color and function
C、size and arrangement
D、color and arrangement
答案
D
解析
从文中第二段可看出,研究者们检查了在一次事故中死去的学习有障碍的人的大脑,他们发现两件奇怪的事。其中之一是他的大脑细胞是灰色的,而正常人是白色的;他们还发现学习有障碍的人的神经细胞,不像正常人那样在一条线上,而是混在一起排列。因此应选D项。
转载请注明原文地址:https://kaotiyun.com/show/GQLd777K
本试题收录于:
职称英语理工类A级题库职称英语分类
0
职称英语理工类A级
职称英语
相关试题推荐
CampbellbelievespeopleshouldpaymoreattentiontohealthpromotionanddiseasepreventionbecausemostofthesediseasesWh
AWondersMadebyOurSickbutCharmingLittleGirlBHelpingaDoctortoSucceedCHeartsSaddenedbyaRareDisorderofOur
A.Doescanceralwayscausepain?B.Cancancerbeprevented?C.Whatiscancer?D.Howcommoniscancer?E.Whatcausescancer?
PreservingNatureforFutureDemandsforstrongerprotectionforwildlifeinBritainsometimeshidethefactthatsimilarne
MoreAboutAlzheimer’sDiseaseScientistshavedevelopedskinteststhatmaybeusedinthefuturetoidentifypeoplewith
WardoffTravelBugs1Astheholidayseasonapproaches,sodoestheprospectofjetlag,anupsetstomachorsunburn.With
CharlesWheeler’spaintingsoftenhighlightthesharpedgesandgeometricalshapesofmachines.
WideWorldofRobotsEngineerswhobuildandprogramrobotshavefascinatingjobs.Theseresearcherstinker(修补)withmachines
ThedocumentwascompiledbytheDepartmentofHealth.
随机试题
灌注药液的步骤包括
脾脏的功能包括
下列关于咖啡因英文名正确的是
住宅外部空间生理环境的三个重要方面是()。
我国《商业银行法》规定,设立全国性商业银行的注册资本最低限额为()亿元人民币。
在领导层架构中,处理人力资源架构的顶端的是()。
给定资料1.在某大学生创业大赛现场,5名女孩准备筹集40万元资金,到武汉近邻去承包50亩地,种植有机蔬菜。台上陈述的女孩充满激情和自信,台下观众也不时报以阵阵掌声。当评委问到“你们种过蔬菜吗?”“你们的创业资金从哪里来?”“农民凭什么把土地转包给
Fromhis______eyes,wecanseethatheis______.
Areyoufacingasituationthatlooksimpossibletofix?In1969,thepollutionwasterriblealongtheCuyahogaRivernearC
TheCommitteepronouncedfourmembersexpelledforfailuretoprovideinformationinthe______ofinvestigations.(2002年中国科学院考博试题)
最新回复
(
0
)