首页
登录
职称英语
[originaltext] In some children who go blind, certain parts of the brain tha
[originaltext] In some children who go blind, certain parts of the brain tha
游客
2023-09-03
78
管理
问题
In some children who go blind, certain parts of the brain that normally control vision appear to switch jobs and focus instead on sound, a new study has found.
The study, by researchers at the University of Montreal, involved 7 adults who could see and 12 adults who had lost their vision when they were children. Each participant sat in a room with 16 loudspeakers at different locations. The room was designed so that there were no echoes. During the experiment, the speakers irregularly produced sounds. Participants had to point to where the sounds were coming from. Meanwhile, the researchers monitored blood flow in the brains of the participants to see which brain structures were working during the task.
The results showed that 5 of the blind participants were very good at pointing to where sounds were coming from. In these people, blood flow increased in the visual cortex — an area at the back of the right side of the brain. This part of the brain is usually associated with vision. The other 7 blind participants showed no increase in activity in the visual cortex. These people didn’t do very well at picking out where sounds were coming from. Now, the researchers are looking at whether these people have gained an enhanced sense of touch instead of sound to replace their lost vision. The scientists say that their study shows how adaptable parts of the brain can be.
Questions 32 to 35 are based on the passage you have just heard.
32. What is the purpose of the experiment described in the passage?
33. What were the participants of the experiment asked to do?
34. During the experiment, why was blood flow in the brains of the participants measured?
35. What can best summarize the main idea of the passage?
选项
A、To learn about the way they react to echoes.
B、To look for the way of enhancing hearing ability.
C、To find which parts of the brain were functioning.
D、To expose the relationship between seeing and touching.
答案
C
解析
选项均以不定式开头表明,本题考查行为目的。由短文中提到的the researchers monitored blood flow…to see which brain structures were working…可知,研究人员对血液流向进行观测是为了搞清楚大脑哪部分在起作用,故答案为[C]。
转载请注明原文地址:https://tihaiku.com/zcyy/2982084.html
相关试题推荐
Whenchildrencallaboy"foureyes"becausehewearsglasses,theyarespeaking
Thepoliceascertainedthattherewerenosignsthatthefirehadbeenset_____
Parentsneedtoteachchildrenthe______valueofgoodbehavior.A、subtleB、etern
Thepursuitofleisureonthepartoftheemployeeswillcertainlynot______th
Thechildrencheeredupwhentheysawhundredsofcolorfulballoons______slowl
It’salmost______thatourteamwillwin.A、certainB、sureC、exactD、accurateA
Thefoodwasdivided______accordingtotheageandsizeofthechildren.A、equa
Somechildrendisplayan________curiosityabouteverynewthingtheyencounter.
Apoliticianmustbeableto______publiccriticism.A、ascertainB、correspondC、
Recentlyanumberofcaseshavebeenreportedofyoungchildren______aviolent
随机试题
Sociologistsuse"power"torefertothecapacityofpeopletocontrolori
Thisresearchprojectrequiresmoremoneythan______.A、beingputinB、havebeen
WhenIwas14,mymotherwas41andsheisnowtwiceasoldasIam.Howoldam
Peoplewholiveinheavilyindustrializedareasdonotgetasmuchsunlight
Thepursuitoflastinghappinesshaslongbeenasubjectofinterestforsci
小儿药物剂量的计算最常用的方法是()A.按体表面积计算 B.按体重计算
动脉导管未闭的主要病理生理改变是<P>A.右心室容量负荷增加<br>B.左心室容
国际收支顺差,主要是()的结果。A:对外贸易逆差和外资流入 B:对外贸易顺差和
在太阳能供电系统中,()抗辐射能力很强,目前主要运用于宇航及通信卫星等空间领域。
三同时制度是指()A.与主体工程同时设计 B.与主体工程同时施工 C.与主体
最新回复
(
0
)