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
Some people have a more complicated sensory life than others. Most taste tuna only when they eat it. A few, though, taste it whe
Some people have a more complicated sensory life than others. Most taste tuna only when they eat it. A few, though, taste it whe
admin
2016-10-21
32
问题
Some people have a more complicated sensory life than others. Most taste tuna only when they eat it. A few, though, taste it when they hear a particular word, such as "castanet". Others link the color red with the letter " S" or make some other inappropriate connection between stimulus and response. Such people are known as synaesthetes, and the phenomenon of synaesthesia has puzzled brain scientists since it Was recognized over a century ago.
Most researchers in the field suspect synaesthesia is caused by crossed wires in synaesthetes’ brains, but until recently they have had no way to check this hypothesis. However, the development of a technique called diffusion-tensor imaging has changed that. And researchers at the University of Amsterdam have just applied it to the brains of 18 women(the sex more likely to experience synaesthesia)who have the most common form of the condition. This is called grapheme-color synaesthesia. It is a tendency to see letters and numbers in color.
Diffusion-tensor imaging measures the direction of movement of water molecules. Since the filaments that connect distant nerve cells are surrounded by fatty sheaths which restrict the movement of water, such molecules tend to move along a filament rather than out of it. The upshot is that the technique can detect bundles of such filaments running from one part of the brain to another.
The grapheme-color synaesthesia was chosen to study for two reasons. One was that it is common. The other was because there is a specific hypothesis as to its cause. Earlier brain-scanning studies have shown that the part of the brain which identifies word shape is in an area called the fusiform gyrus. This is next to an area known as V4, which identifies color. Both light up simultaneously in traditional scanners when someone is experiencing grapheme-color synaesthesia, so an inappropriate link between them is an obvious thing to look for.
Diffusion-tensor imaging did, indeed, show strong connections between these two areas in the brains of the synaesthetes when they slid into the scanner and viewed color-evoking letters and numbers. Other unusual connections showed up too, suggesting the phenomenon is more complex than had been appreciated. By contrast, the brains of 18 non-synaesthetes matched with the volunteers by age and sex showed no such strong connections.
And the revelations went further. Certain types of grapheme-color synaesthetes have more connectivity than others. As part of the study, researchers asked volunteers to fill out questionnaires about how they experience their color sensations. Some reported seeing color projected on to whatever word or number they were shown. Members of this group are known as "projectors". Others, known as "associators" , reported color only in their mind’s eye. Although both groups of synaesthetes had much more connectivity than non-synaesthetes, projectors had noticeably more again than associators.
Researchers are not yet sure what form the stronger connections take. They could be the result of more filaments than normal connecting the areas in question. Or the filaments might be broader than normal. Or the fatty coatings of the filaments might be thicker, which would amplify the signal passing along them as well as keeping water molecules on the straight-and-narrow.
How synaesthesia starts is also unclear. There is evidence of a genetic component but learning must be involved as well. People are not born with the concept of the letter " A". And they certainly are not born with a bright-red, cherry-colored "A" — however much it feels, as synaesthetes insist, as though they were.
What does the following sentence mean? "And they certainly are not born with a bright-red, cherry-colored ’A’ — however much it feels, as synaesthetes insist, as though they were."(Para. 8)
选项
A、Exquisite as the sensation is, there is no connection between colors and the letter "A".
B、Strong as the sensation is, the connection is not an innate sense.
C、The letter "A" can initiate the color sensations that synaestheltes claim to be existing all along.
D、Synaestheltes insist there are intrinsic connections between the letter "A" and the cherry color.
答案
B
解析
语义题。该句着重指出联觉并不是与生俱来的感知,而是包含了后天的学习认知过程,故B正确。其他选项语义理解出现偏差。
转载请注明原文地址:https://jikaoti.com/ti/tdFYFFFM
0
专业英语八级
相关试题推荐
Oneofthemanyquestionsbroughtupisinregardswithwhetherornotcloningshouldbeanoptionfor【M1】______parentsthata
Fromaveryearlyage,perhapstheageoffiveorsix,IknewthatwhenIgrewIshouldbeawriter.Betweentheages【M1】______
GlobalizationisanewinternationalsystemthathasreplacedtheColdWarsystem.However,unlesstheworldweremadeofjust【M
GlobalizationisanewinternationalsystemthathasreplacedtheColdWarsystem.However,unlesstheworldweremadeofjust【M
ArecentstudybyGermanresearcherspresentsthepossibilityof"carbonfarming"asalessriskyalternativetoothercarbonca
ArecentstudybyGermanresearcherspresentsthepossibilityof"carbonfarming"asalessriskyalternativetoothercarbonca
Inthelongest-termstudyofitskind,researcherspittedtwopopulardietsheadtohead—alow-fatAmericanHeartAssociation
Thenatureofworkischanging.Recenttechnologicaladvances,ashiftfrommanufacturingtoservice-basedorganizations,incr
A、Ugh!B、Whew!C、Yum-yum!D、Alas!C根据原文,主持人显然觉得现场的素食都挺好吃的,因此选C。A表示厌恶,B表示如释重负,D表示遗憾或不幸。
A、Amovement.B、Anagency.C、Amagazine.D、ATVserial.C根据原文中对于来宾的介绍“living-greencontributorfor‘BetterHomesandGardens’”,“co
随机试题
行政法院起源于()
在其他条件不变的前提下,厂商增加投资会导致
正常粪便中可以出现的是A.夏科-莱登结晶B.菱形血晶C.红细胞D.淀粉颗粒E.大吞噬细胞
以下通过补充体内生命代谢物质而发挥药理作用的药物有
【背景资料】A公司在冬季承接了一室外压缩空气管网系统的安装,系统工作压力为2.5MPa。由于工期较紧,A公司将系统中部分规格的直管分包给B公司。A公司和B公司均具备与承包管道系统相符的压力管道施工许可证,管道及管件均由业主提供。管道系统施工完后,B公司
甲公司2015年和2016年12月31日资产负债表部分项目余额如下:假定2016年甲公司发生的部分经济业务如下:(1)3月25日企业购入专项工程A需要安装的设备一台,发票上注明的设备款为20000元,发生运费5000元,购入后发生安装费1000元,全
根据《民法典》的规定,下列关于诉讼时效期间的起算,说法正确的有()。
根据《公司法》规定,下列对股份有限公司的股份转让的限制正确的有()。
有财产的无民事行为能力人、限制民事行为能力人造成他人损害的,从本人财产中支付赔偿费用。不足部分,由监护人赔偿。()
【B1】【B8】
最新回复
(
0
)