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
85
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
HeseemsnottohavegraspedwhatImeant,______greatlyupsetsme.A、itB、which
Thehorseandcarriageisathingofthepast,butloveandmarriagearesti
团购是一种新型的购物方式,顾名思义就是指很多人一起购买同一产品,旨在加大与卖方的谈判能力以获得优惠的购买价格。随着中国电子商务的繁荣和发展,网络团购在中
Whomcanyoutrustthesedays?ItisaquestionposedbyDavidHalpernofC
[originaltext]Ilovetreesbecausetheyhavemanydifferentshadesofgreen
中国新一轮的改革涵盖政治、经济、文化、社会、生态文明五大方面。我们对于中国改革的成功充满自信。这种自信来自于中华民族5000年自强不息的优秀传统和博大精
大面积烧伤休克期输液治疗的起算时间应为A.受伤时间 B.入院时间 C.静脉输
以下属于劣药的是:A.未标明有效期或者更改有效期的 B.不注明或者更改生产批号
某男,43岁,近日头晕耳鸣、腰膝酸软、骨蒸潮热、盗汗遗精,中医诊断为消渴肾阴亏损
(2020年12月真题)关子钢筋加工的说法正确的是()。A.钢筋的切断口不应
最新回复
(
0
)