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
外语
What if we could read the mind of a terrorist? Researchers at Northwestern University in Chicago say they have taken a step cl
What if we could read the mind of a terrorist? Researchers at Northwestern University in Chicago say they have taken a step cl
admin
2021-08-20
72
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 F300 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.
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://kaotiyun.com/show/IuD7777K
0
大学英语六级
相关试题推荐
A、Theyenableyoutoaddpeopleyouknowasfriends.B、Theyofferyouaplacetobuildupyouraccountandprofile.C、Theymake
A、Peopledon’thavetoreleaseinformationinpublic.B、Itcanhelpthepolicetoestablishmanybasicfacts.C、Thepolicecanf
A、Itmaynotmatchtheprofile.B、Itinvolvesissuesofprivacy.C、Itconcernsproblemsofsecurity.D、Itneedsknowledgeofele
TheHistoryofEarlyCinemaA)Thehistoryofthecinemainitsfirstthirtyyearsisoneofmajorand,tothisday,unparalleled
LessNews,MuchBetterA)Inthepastfewdecades,thefortunateamongushaverecognizedthehazardsoflivingwithanoverabund
TryingtooHardCanSlowNewLanguageDevelopmentA)Neuroscientistshavelongobservedthatlearningalanguagepresentsadiffe
MinorityReportAmericanuniversitiesareacceptingmoreminoritiesthanever.Graduatingthemisanothermatter.A)Barry
It’sHardtoCleanBigDataA)KarimKeshayjee,aTorontophysiciananddigitalhealthconsultant,crunchesmountainsofdatafro
Isscienceinfinite?Canitkeepgivingusprofoundinsightsintotheworldforever?Orisitalreadybumpingintolimits?Inhi
A、India.B、Turkey.C、France.D、Germany.C讲座中提到,罗马教皇格利高里十三世于1582年下令用新的日历替换旧的罗马儒略历,新日历提倡在1月1日庆祝新年。同年,法国采用了改革后的日历,将新年定在1月1日。因此答案为C)
随机试题
对教师语言表达能力的要求有()。
考核者不加批判地接受别人的语言、行为、表现或其他事物,而迅速改变自己对被考核者的评价意见或看法,从而引起的考核误差被称为()
掌骨骨折的常规摄影位置为
下列不属于根据五行相生规律确立的治法是
A.甲氰咪胍B.消炎痛C.吗丁啉D.硫糖铝E.胶体次枸橼酸铋增加胃动力
甲乙为仇敌。某日甲教唆丙、丁去教训一下乙。丙、丁便各自拿了木棒一起去教训乙,乙被打倒在地。正在这时,丁的好友戊刚从工地回来,看到此情此景,便将自己手中的铁锨递给了丙,丙接过后继续打乙,戊站在旁边观看。后乙住院治疗了一个月。假如丙、丁二人都是年仅13岁的
下列关于类比分析法的表述,错误的是()。
“士为知己者死”这一古训反映了有效的领导始于()。
某体检记录表中有日期/时间型数据“体检日期”,若规定在体检30天后复检,需在本表中建立新字段“复检日期”,并给出预计的复检日期。在下列设计视力中,设置“复检日期”为计算字段,在表达式栏中,正确的表达式是()。
A、Inafast-foodrestaurant.B、Atashoppingcenter.C、Atacountyfair.D、Inabakery.C短文开头提到,县集市是新英格兰镇的一个传统,娱乐性非常强,其中一个受欢迎的项目
最新回复
(
0
)