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
88
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
Hewas______enoughtounderstandmyquestionsfromthegesturesImade.A、intel
Humanshavealwayslookedattheheavensand【C1】______aboutthenatureofth
[audioFiles]audio_eufm_j77_001(20082)[/audioFiles]A、Shewasabsentallweekowi
[originaltext]W:Johnsonpassedphysicseventhoughhehardlydidanywork.M:
2021年1—2月份,合并计算我国房地产住宅开发投资最少的两个地区,其房地产
下列哪一物质可以促进人体钙的吸收()。A.维生素E B.维生素D C.维
甲状旁腺素调节血液中钙、磷浓度的靶器官是A.肝脏、胰脏、小肠B.骨骼、肾脏、小肠
只具有两个确定结果的试验进行n次,如果把其中的一种结果称为“成功”,而另一种结果
气体灭火系统防护区应设置泄压口,泄压口宜设在外墙上,七氟丙烷灭火系统的泄压口并应
甘油三酯合成的基本原料是( )。A.胆碱 B.甘油 C.胆固醇酯 D.葡
最新回复
(
0
)