She’snotafraidofanything.Snakes?Noproblem.Walkingalonei...
问题详情:
She’s not afraid of anything. Snakes? No problem. Walking alone in the dark? Easy. We’re not talking about a superhero here -- SM is a 44-year-old mother. And she’s fearless because she happens to be missing part of her brain: the amygdala(扁桃腺).
Shaped like a pair of almonds sitting in the middle of your brain, the amygdala helps control fear and anxiety. A rare condition called Urbach-Wiethe disease left SM without her amygdala, and seems to have completely erased her sense of fear.
To try to understand how the amygdala works, a team of researchers made their efforts to scare SM. They showed her horror movies and took her to the Waverly Hills Sanatorium Haunted House in Kentucky. She pushed out one of the monsters and laughed. SM said she didn’t like snakes, but at a pet store full of poisonous creatures, she kept asking to touch them. When asked to rate her feelings, SM reported feeling surprised or disgusted, but never fearful.
“She tends to approach everything she should be avoiding,” says Justin Feinstein of the University of Iowa. This means the amygdala could control deeper urges to approach or avoid danger. Other scientists have a different opinion, though. “I don’t believe you can make a general statement about what the amygdala does by a single case study,” Elizabeth Phelps said. In 2002, Phelps published a study on a similar patient with amygdala damage who still showed fear.
It may sound like fun to be totally fearless, but we get scared for a good reason. “The nature of fear is survival and the amygdala helps us stay alive by avoiding situations, people, or objects that put our life in danger,” Feinstein said. SM was once followed in a park after dark by a man with a knife, and she simply walked away. “It is quite remarkable that she is still alive,” said Feinstein.
56. SM dares to walk alone in the dark mainly because ____________.
A. she is a superhero B. she has experienced such conditions a lot
C. she is a mental patient D. she has no sense of fear
57. Researchers tried their best to frighten SM in order to find ___________.
A. The function of a particular organ
B. SM’s reaction of fear and anxiety
C. The process of removing amygdala
D. A special way to get along with monsters
58. What do we know from the research on SM?
A. It was easy for her to avoid danger.
B. SM never felt fearful but disgusted.
C. SM was frightened by nothing except monsters.
D. SM got along well with the snakes.
59. What is Elizabeth Phelps’ attitude toward the function of the amygdala based on the research on SM?
A. Indifferent B. Supportive C. Disapproving D. Interested
60. What can we infer from the last paragraph?
A. People can remove their amygdala to be fearless.
B. SM will be admired because of her bravery.
C. No one can survive if their amygdala is removed.
D. The sense of fear is crucial to humans.
【回答】
DABCD
知识点:健康保健类阅读
题型:阅读理解
-
下列加点词注音全对的一项是( )A.浣女(huàn) 谄媚(xiàn) 邂逅(xiè)B.惘然(wǎn...
问题详情:下列加点词注音全对的一项是( )A.浣女(huàn) 谄媚(xiàn) 邂逅(xiè)B.惘然(wǎnɡ) 纶巾(ɡuān) 铜钿(tián)C.湓浦(pǔ) 贾人(ɡǔ) 嘲哳(zāo)D.迸发(bènɡ) 谪居(zhé) 锦瑟(sì)【回答】【*】B【解析】试题分析:A.Chǎn,C.zhāo,D.s...
-
对于锌一铜一稀硫*组成的原电池装置中,当导线中有1mol电子通过时,理论上的两极变化是( )。 ①锌片...
问题详情:对于锌一铜一稀硫*组成的原电池装置中,当导线中有1mol电子通过时,理论上的两极变化是( )。 ①锌片溶解了32.5g②锌片增重32.5g③铜片上析出lgH2 ④铜片上析出1molH2 A.①和③ B.①和④ C.②和③ D.②和④【回答】A知识...
-
已知铁的一种氧化物,其中含氧元素的质量分数为30%,则这种铁的氧化物的化学式为 ( ) A.FeO ...
问题详情:已知铁的一种氧化物,其中含氧元素的质量分数为30%,则这种铁的氧化物的化学式为()A.FeO B.Fe2O3C.Fe3O4 D.无法判断【回答】B知识点:金属的化学*质题型:选择题...
-
某有机物结构简式为,下列关于该有机物的说法中不正确的是( )A.遇FeCl3溶液显紫*B.与足量的*氧化*溶...
问题详情:某有机物结构简式为,下列关于该有机物的说法中不正确的是()A.遇FeCl3溶液显紫*B.与足量的*氧化*溶液在一定条件下反应,最多消耗NaOH3molC.能发生缩聚反应和加聚反应D.1mol该有机物与溴发生加成反应,最多消耗1molBr2【回答】解析A项,有机物分子中存在*羟基,所以...
相关文章
- ----I'vespentthewholeafternoonreadingbooks.---Ithinkyo...
- Hard-workingMakingPeopleLiveLonger努力工作使人长寿Scientistsfin...
- 阅读理解。MrKinglivesinacity.Heownssomeshopsandmakesalotofmo...
- Beingorganizedisanimportantskillforschoolandlife.Wheny...
- Socialnetworkingisn’tonlyfortheunder40s.Morethan25perce...
- Mike’sneverwillingtochangeanyofhisopinions.It’snouse
- VisitDongqianLakeZooComeandseebigelephantsfromYunnanan...
- Agoodnight’ssleepisimportanttoeveryoneofus.Asweknow,sle...
- 完形填空。IthinkI’vealwaysbeeninterestedinfood.Mygrandparent...
- NewYorkStatehaspassedtheUSA’sfirststatelawbanning(禁止)mo...