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
Learning Disabilities Learning disabilities are very common. They affect perhaps 10 percent of all children. Four times a
Learning Disabilities Learning disabilities are very common. They affect perhaps 10 percent of all children. Four times a
admin
2010-01-14
32
问题
Learning Disabilities
Learning disabilities are very common. They affect perhaps 10 percent of all children. Four times as many boys as girls have learning disabilities.
Since about 1970, new research has helped brain scientists understand 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 cannot 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 cells were gray. The researchers also found that many of the nerve cells 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 Gesehwind proposed that learning disabilities resulted mainly 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 did not connect as they should. So the brain was like an electrical device in which the wires were crossed.
Other researchers did not examine brain tissue. Instead, they measured the brain’s electrical activity and made a map of the electrical signals.
Frank Duffy experimented with this technique at Children’s Hospital Medical Center in Boston. Doctor Duffy found large differences in the brain activity of normal children and those with reading problems. The differences appeared throughout the brain. Doctor Duffy said his research is evidence that disabilities involve damage to a wide area of the brain, not just the left side.
Scientists found that the brain cells of a learning-disabled person differ from those of a normal person in______.
选项
A、structure and function
B、color and function
C、size and arrangement
D、color and arrangement
答案
D
解析
科学家发现学习上有缺陷的人的脑细胞与正常人的不同在于:A 结构和功能;B 颜色和功能;C 大小和排列方式;D 颜色和排列方式。
转载请注明原文地址:https://kaotiyun.com/show/fyhd777K
本试题收录于:
职称英语理工类基础题库职称英语分类
0
职称英语理工类基础
职称英语
相关试题推荐
Inthe1950’saccumulatingscientificevidencelinkingcigarettesmokingandlungcancermadea(51)impact(52)thesmokingpublic.
Inthe1950’saccumulatingscientificevidencelinkingcigarettesmokingandlungcancermadea(51)impact(52)thesmokingpublic.
Inthe1950’saccumulatingscientificevidencelinkingcigarettesmokingandlungcancermadea(51)impact(52)thesmokingpublic.
Inthe1950’saccumulatingscientificevidencelinkingcigarettesmokingandlungcancermadea(51)impact(52)thesmokingpublic.
Inthe1960s,medicalresearchersThomasHolmesandRichardRahedevelopedachecklistofstressfulevents.Theyappreciatedthe
Itwasclearthattheyregardedhimwithaffection,aswellaswithrespect.
Universitiesusuallygivediplomasorcertificatestostudentswhocompletecourserequirementsadequately.
Peopleinthepastheldthatthedifferencebetweenlifeanddeath______.Whenapersonshouldbeconsidereddeadiscurrently
AAddressingaVarietyofBehavior-affectingFactorsBImportanceofImmunizationCRelationshipwithOtherHealthServicesD
A.Whatcausesautism?B.Howcommonisautism?C.Doesautismoccurtogetherwithotherdisabilities?D.Whatisthedifference
随机试题
A.室性心动过速、室颤B.支气管哮喘,心源性休克C.高钾血症D.失代偿性心衰、急性心梗E.胆道阻塞性疾病螺内酯的禁忌证是
抗心绞痛药物的作用是
甲诉乙侵权赔偿一案,乙败诉。但判决生效后,乙未如期履行判决。甲依法向法院申请执行。法院受理后。查明乙因金融危机,失业在家。甲表示不撤回执行申请,但是可以等一段时间后再执行。在此情况下.法院应当如何处理甲的执行申请?()
下列关于行政许可的设定权,表述不正确的是()。
依据《特种设备安全法》的规定,特种设备生产单位的下列人员中,无须按照国家有关规定取得相应资格的是()。
下面的研究主题属于学习心理范畴的是
面向对象的数据库是(48)的集合。
A、1981年B、1983年C、2003年D、2007年A主持人说“‘美的’从1981年诞生到现在,已经是一个全国知名的品牌”,所以A对。
Fordays,Beijinghasbeentrappedunderablanketofyellow-browndustthattheU.S.Embassyairmonitorclassifies,initsho
A、Hewillhaveameeting.B、Hewillmeettheman.C、Hewillmakeadecision.D、Hewillgotraveling.A
最新回复
(
0
)