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 clos
What if we could read the mind of a terrorist? Researchers at Northwestern University in Chicago say they have taken a step clos
admin
2019-04-30
31
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.
What would be the best title for the passage?
选项
A、Advantages of the P300 Over a Polygraph Test
B、Application of the P300 in Anti-terrorism
C、Fighting Crime by Reading Minds
D、Merits and Demerits of the P300
答案
C
解析
转载请注明原文地址:https://kaotiyun.com/show/ThX7777K
0
大学英语六级
相关试题推荐
AremarkablethinghappenedinNewYorkrecently:thestatelegislature,ineffect,turneddownthechancetowin$700millioni
AremarkablethinghappenedinNewYorkrecently:thestatelegislature,ineffect,turneddownthechancetowin$700millioni
TheBeautyAdvantage[A]MostofushaveheardthestoryofDebrahleeLorenzana,the33-year-oldQueens,N.Y.,womanwhosuedCi
Foraboutthreecenturieswehavebeendoingscience,tryingscienceout,usingsciencefortheconstructionofwhatwecallmod
中国有句古话“劳心者治人,劳力者治于人”。这句话反映了中国传统文化中的等级划分,也直接影响到现代人的职业选择。从事脑力劳动的“白领”成为让人羡慕的对象,而体力劳动者“蓝领”即使收入丰厚,社会地位仍然不高。在传统观念中,人们认为商人只注重追求利益,因此经商曾
Withincreasingprosperity,WesternEuropeanyouthishavingaflingthatiscreatingdistinctiveconsumerandculturalpatterns
TheIndustrialRevolution[A]TheIndustrialRevolutionisthenamegiventothemassivesocial,economic,andtechnologicalcha
A、Stationmasters.B、Conductors.C、Passengers.D、Stations.C
A、Every6years.B、Every2years.C、Every4years.D、Wheneveronedies.A
Ofallthe【C1】______ofagoodnight’ssleep,dreamsseemtobeleastwithinourcontrol.Indreams,awindowopensintoaworld
随机试题
Shelley’smasterpiece,PrometheusUnbound,isaversedrama,whichborrowsthebasicstoryfrom______.
社会革命的根本目的是()。
肉芽肿性炎时,下述哪种细胞是主要成分
关于胃运动的叙述,错误的是
关于呼吸困难,下列说法错误的是
《工业企业厂界环境噪声排放标准》适用于对()。
《建筑法》属于下列法律部门中的()。
A、B企业于2012年5月1日签订买卖合同,合同标的为200万元。根据合同规定,B企业于5月10日提交全部货物,A企业验收合格后,于5月20日提交B企业一张出票后1个月付款的银行承兑汇票,汇票金额为200万,出票日期5月20日,承兑人、付款人为甲银行。6月
一般资料:求助者,男性,33岁,已婚,公务员。案例介绍:求助者出生在军人家庭,但自幼随祖母在农村生活,上小学时回到城里父母身边,父母对他事事严格要求。养成了追求完美的性格特征。因带乡下口音,曾被同学笑话,对上学感到恐惧,觉得无助和自卑,但成绩一直
英国《金融时报》中文网报2014年9月22日报道称:中国央行最近推出了一些“非常规货币政策”,如定向降低准备金率(定向降准)、抵押补充贷款、定向降低再贷款利率(再贷款)等,引起了经济金融业界和学界的广泛关注。一种流行的解读是央行逐渐退出外汇市场干预,外汇占
最新回复
(
0
)