首页
登录
职称英语
What if we could read the mind of a terrorist? Researchers at Northwestern Un
What if we could read the mind of a terrorist? Researchers at Northwestern Un
游客
2024-04-01
33
管理
问题
What if we could read the mind of a terrorist? Researchers at Northwestern University in Chicago say they have taken a step closer to that reality with a test that could uncover evil plans by measuring brain waves.
In a study published in the journal Psychophysiology, psychologists John Meixner and Peter Rosenfeld used electrodes (电极) to measure the brain waves of 29 undergraduates who had been told to mock-plan either a terrorist bombing in Houston in July, or a vacation in a different city in a different month. The researchers then presented the students with the names of various cities, methods of terrorist attack and dates. As they did so, they scanned the subjects’ brains. They watched for a particular brainwave—dubbed the P300, because it fires every 300 milliseconds— which signals recognition of something familiar.
"The P300’s amplitude (振幅) is very large when you see an object that is rare and personally meaningful to you," Meixner says. "So the amplitude of P300 was large when we presented the word ’Houston’, the city where the attack was planned. In total we were able to identify 10 out of 12 ’terrorists’". The investigators also correctly matched 20 out of 30 crime-related details, such as types of explosives and specific sites and dates.
The P300’s potential as a method for confirming concealed information was first recognized in the 1980s. But while it has long been touted as a possible substitute for the polygraph test, it has yet not been used by law enforcement anywhere in the world. One of the reasons is that it becomes difficult to use if investigators do not know the information they are trying to confirm. For instance, in Meixner and Rosenfeld’s study, the researchers would have struggled had they not known that the city in which the attack was planned was Houston, since it would be only by luck or guesswork they would have included it in the sample list of names.
What’s more, the P300 is vulnerable to what scientists call "confounding factors". For instance, if the mock-terrorists in the study were raised in Houston, which was also the location of the attack, the researchers would not know for sure what was causing the P300 spike.
But Meixner and Rosenfeld say that despite these shortfalls, the technology holds more potential than the polygraph. The polygraph measures responses like respiration and sweating, which can certainly be triggered by a lie, but can also result from any high-stress situation—including the mere experience of being interrogated by a police officer. While there is nothing that can correct this problem with polygraphs, P300s can at least be made more accurate by increasing the number of details you show a suspect. [br] Why has the P300 not been used by law enforcement in even one country?
选项
A、Because it has not proved to be a reliable way of getting information.
B、Because information to be confirmed should be exact.
C、Because suspects’ relatives need to be involved in the process.
D、Because the technology is too sophisticated to be put into practice.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3535422.html
相关试题推荐
Researchershavereconstructedanancienthumangenome(基因组)forthefirstt
Researchershavereconstructedanancienthumangenome(基因组)forthefirstt
Researchershavereconstructedanancienthumangenome(基因组)forthefirstt
Researchershavereconstructedanancienthumangenome(基因组)forthefirstt
AnewstudyfromresearchersinEuropeclaimsthattheaverageIQinWestern
AnewstudyfromresearchersinEuropeclaimsthattheaverageIQinWestern
AnewstudyfromresearchersinEuropeclaimsthattheaverageIQinWestern
AnewstudyfromresearchersinEuropeclaimsthattheaverageIQinWestern
Researchershavereconstructedanancienthumangenome(基因组)forthefirsttim
Researchershavereconstructedanancienthumangenome(基因组)forthefirsttim
随机试题
股票可以为持有人带来收益的特性是股票是最基本的特征,这特征成为股票的( )。A
在经济周期的不同阶段,可以观察到的债券收益率曲线有( )。 Ⅰ.正向的利率曲
全胃肠外营养支持患者可能发生的最严重的代谢并发症是A:高钾血症 B:低钾血症
一个不计厚度的圆柱型无盖透明塑料桶,桶高2.5分米,底面周长为24分米,AB为底
下边四个图形中,只有一个是由上边的四个图形拼合(只能通过上、下、左、右平移)而成
下列文学作品中,不属于莫言作品的是()。 A.《丰乳肥臀》B.《活着》C
在下列法规文件中,属于行政法规的有()。(2011年真题)A.《历史文化名
根据《风景名胜区条例》的规定,应经风景名胜区管理机构审核,依照有关法律、法规的规
薪酬水平低韵企业应注意( )点处的薪酬水平。A.50% B.25% C.9
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
最新回复
(
0
)