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
23
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] From the passage we know that______.
选项
A、a little worry will do us good if handled properly
B、a little worry will enable us to survive a recession
C、fear strengthens the human desire to survive danger
D、fear helps people to anticipate certain future events
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2947474.html
相关试题推荐
"Iwanttocriticizethesocialsystem,andtoshowitatwork,atitsmost
"Iwanttocriticizethesocialsystem,andtoshowitatwork,atitsmost
Biologically,thereisonlyonequalitywhichdistinguishesusfromanimals:
Biologically,thereisonlyonequalitywhichdistinguishesusfromanimals:
Biologically,thereisonlyonequalitywhichdistinguishesusfromanimals:
Biologically,thereisonlyonequalitywhichdistinguishesusfromanimals:
TheAmericaneconomicsystemisorganizedaroundabasicallyprivateenterpr
TheAmericaneconomicsystemisorganizedaroundabasicallyprivateenterpr
TheAmericaneconomicsystemisorganizedaroundabasicallyprivateenterpr
TheAmericaneconomicsystemisorganizedaroundabasicallyprivateenterpr
随机试题
WilydoesthewomanknowsomuchaboutAlbuquerque?[originaltext]M:Ihavebeen
[originaltext]M:Then,howdoesToastmasterstrainpeople?W:Toastmastershas
Ifyouweretobeginanewjobtomorrow,youwouldbringwithyousomebasic
A.-1 B.0 C.1 D.2
下列关于TFⅡD的叙述,正确的是()。A.TFⅡ中唯一能与TATA盒结合
患者男,35岁,体重60kg。双上肢、躯干、双臀、会阴部被硫酸烧伤。患者的烧伤面
食管长度为A:25cm B:28cm C:20cm D:35cm E:5
A. B. C. D.
下列各项中,应填列于货币当局资产负债表中负债方的是()。A.国外资产 B.
依据《风景名胜区条例》,经风景名胜区管理机构审核,依照有关法律、法规的规定报有关
最新回复
(
0
)