首页
登录
职称英语
In a purely biological sense, fear begins with the body’s system for reactin
In a purely biological sense, fear begins with the body’s system for reactin
游客
2023-08-22
36
管理
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(神经元)deep in the brain known as the amygdala(扁桃核).
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 facts 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(抗炭疽菌的药物)and buying gas masks. [br] In Hallowell’s view, people’s reaction to the terrorist threat last fall was______.
选项
A、ridiculous
B、understandable
C、over-cautious
D、sensible
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2947476.html
相关试题推荐
"Iwanttocriticizethesocialsystem,andtoshowitatwork,atitsmost
"Iwanttocriticizethesocialsystem,andtoshowitatwork,atitsmost
Biologically,thereisonlyonequalitywhichdistinguishesusfromanimals:
Biologically,thereisonlyonequalitywhichdistinguishesusfromanimals:
Biologically,thereisonlyonequalitywhichdistinguishesusfromanimals:
TheAmericaneconomicsystemisorganizedaroundabasicallyprivateenterpr
TheAmericaneconomicsystemisorganizedaroundabasicallyprivateenterpr
TheAmericaneconomicsystemisorganizedaroundabasicallyprivateenterpr
TheAmericaneconomicsystemisorganizedaroundabasicallyprivateenterpr
TheAmericaneconomicsystemisorganizedaroundabasicallyprivateenterpr
随机试题
______wasoneofthefoundersofmodemscienceandmaterialism.A、FrancisBacon
Don’tforgettobuymesomeSprite,______?A、doyouB、don’tyouC、willyouD、won
[originaltext]W:Wouldyouliketoseeamenu?M:No,thankyou.Ialreadyknow
有一条电阻线,在其两端加1V电压时,测得电阻值0.5?,如果在其两端加10V电压
某商业银行当期信用评级为B级的贷款人的违约概率(PD)为10%,违约损失率(LG
某学生受到老师批评后,把怒气和不满情绪发泄到同学身上。这种行为体现了学生情绪的(
测绘产品验收工作应当在( )后进行。A.经最终检查合格 B.经委托方同意
市场试销关注试用率.再购率和()。A.购买频率 B.次品率 C.
下列人员应由全国人民代表大会选举产生的是:A.政协主席 B.国务院总理 C.
商业银行对交易账户进行市值重估,通常采用的方法有( )。A.盯市 B.盯
最新回复
(
0
)