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
考研
In a purely biological sense, fear begins with the body’s system for reacting to things that can harm us—the so-called fight-or-
In a purely biological sense, fear begins with the body’s system for reacting to things that can harm us—the so-called fight-or-
admin
2017-12-11
47
问题
In a purely biological sense, fear begins with the body’s system for reacting to things that can harm us—the
so-called fight-or-flight response
. "An animal that can’t detect danger can’t stay alive," says Joseph LeDoux. Like animals, humans evolved with an elaborate mechanism for processing information about potential threats. At its core is a cluster of neurons deep in the brain known as the amygdala.
LeDoux studies the way animals and humans respond to threats to understand how we form memories of significant events in our lives. The amygdala receives input from many parts of the brain, including regions responsible for retrieving memories. Using this information, the amygdala appraises a situation—I think this charging dog wants to bite me—and triggers a response by radiating nerve signals throughout the body. These signals produce the familiar signs of distress: trembling, perspiration and fast-moving feet, just to name three.
This fear mechanism is critical to the survival of all animals, but no one can say for sure whether beasts other than humans know they’re afraid. That is, as LeDoux says, "if you put that system into a brain that has consciousness, then you get the feeling of fear."
Humans, says Edward M. Hallowell, have the ability to call up images of bad things that happened in the past and to anticipate future events. Combine these higher thought processes with our hardwired danger-detection systems, and you get a near-universal human phenomenon: worry.
That’s not necessarily a bad thing, says Hallowell. "When used properly, worry is an incredible device ," he says. After all, a little healthy worrying is okay if it leads to constructive action—like having a doctor look at that weird spot on your back.
Hallowell insists, though, that there’ s a right way to worry. "Never do it alone, get the facts and then make a plan." He says. Most of us have survived a recession, so we’re familiar with the belt-tightening strategies needed to survive a slump.
Unfortunately, few of us have much experience dealing with the threat of terrorism, so it’s been difficult to get fact about how we should respond. That’ s why Hallowell believes it was okay for people to indulge some extreme worries last fall by asking doctors for Cipro and buying gas masks.
From the studies conducted by LeDoux we learn that
选项
A、reactions of humans and animals to dangerous situations are often unpredictable.
B、memories of significant events enable people to control fear and distress.
C、people’ s unpleasant memories are derived from their feelings of fear.
D、the amygdala plays a vital part in human and animal responses to potential danger.
答案
D
解析
细节题。此题属于细节推断题。文章第一段说humans evolved with an elaborate mechanism for processing information about potential threats,而根据后面的内容At its core is…,known as the amygdala,可以推断amygdala在人对潜在危险的反应中起着重要作用。
转载请注明原文地址:https://kaotiyun.com/show/2nBZ777K
0
考研英语一
相关试题推荐
Airpollutionkilledaboutsevenmillionpeoplelastyear,makingittheworld’ssinglebiggestenvironmentalhealthrisk,theW
Thehighestanxietymomentintheholidayseasonmustbethemomentjustbeforeyourlovedonesunwraptheirgifts.Theribbonc
Universitiesareinaseeminglyself-contradictoryposition.AsStefanCollinipointsoutinhisbook,theseancient【C1】______ha
Peekthroughtheinspectionwindowsofthenearly100three-dimensional(3D)printersquietlymakingthingsatRedEye,acompany
WhatdoRussia’sBelgorodprovinceandsomeschoolsinFloridaandConnecticuthaveincommon?Theyareunlikelyrecruitstothe
TheDangersofSmokingWriteanessayof160-200wordsbasedonthedrawing.Inyouressay,youshould1)describethed
TheInvestigationoftheScaleofChineseNetizenA.Studythefollowingchartcarefullyandwriteanessayof160-200words
ShowingConcernWriteane-mailofabout100wordsbasedonthefollowingsituation:YouphonedyourfriendMaryseveral
Supposeoneofyourfriends,LiHua,wantstochooseabookoninterviewingskillsbeforeheattendsajobinterview.Writetoh
SupposeyouaremanageroftheDesigns&Fashions.Mr.Wang,anewlyrecruitedemployee,wasconsideringtoquitthejob.Nowwr
随机试题
______youchoosetocontactus,youcanexpectourefficientandhelpfulservice.
治疗郁证日久,阴虚火旺者,应首选()
黄芪的气味为
阻塞性黄疸病人的尿液呈( )。【历年考试真题】
下列破产财产的分配顺序,正确的是()。
下列关于信号传递原则的表述中正确的有()。
某企业2000年度共计拥有土地65000平方米,其中子弟学校占地3000平方米、幼儿园占地1200平方米、企业内部绿化占地2000平方米。2000年度的上半年企业共有房产原值4000万元,7月1日起企业将原值200万元、占地面积400平方米的一栋
A、 B、 C、 D、 A每组中第二个图形连接两个第一个图形得到第三个图形。故本题答案为A。
同源器官是指不同生物的某些器官在基本结构、各部分和生物体的相互关系以及胚胎发育的过程彼此相同.但在外形上有时并不相似,功能上也有差别。同功器官,是指不同生物的某些器官在功能上相同,有时形状也相似,但其来源与基本结构均不同。根据上述定义,下列属于同功器官的是
一、注意事项1.申论考试是对应考者阅读能力、综合分析能力、提出和解决问题能力、文字表达能力的测试。2.参考时限:阅读资料40分钟,参考作答110分钟。3.仔细阅读给定资料,按照后面提出的“作答要求”作答。二、给定资料1.
最新回复
(
0
)