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
2020-02-09
15
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/wcW7777K
0
大学英语六级
相关试题推荐
Insuchachanging,complexsocietyformerlysimplesolutionstoinformationalneedsbecomecomplicated.Manyoflife’sproblems
Thedestructionofournaturalresourcesandcontaminationofourfoodsupplycontinuetooccur,largelybecauseoftheextreme
TheValueofWritingWell[A]It’sthattimeofyearagain.No,not"theholidayseason".Imean,itisholidaytime,butfor
Carmakershavelongusedsextoselltheirproducts.Recently,however,bothBMWandRenaulthavebasedtheirlatestEuropeanm
Takingchargeofyourselfinvolvesputtingtorestsomeveryprevalentmyths.Atthetopofthelististhenotionthatintellig
GetWhatYouPayFor?NotAlways[A]ThemostexpensiveelectioncampaigninAmericanhistoryisover.ExecutivesacrossAmer
EatingOurYoung[A]AtFeltonvilleSchoolofArtsandSciences,amiddleschoolinapoorneighborhoodofPhiladelphia,thescho
A、Thepossibilityofruiningherfamily.B、Becomingawareofherdeclininghealth.C、Thefatiguefromlivingafast-pacedlife.
A、Itisenvironmentallyfriendly.B、Itisapromisingindustry.C、Itrequiresnewtechnology.D、Itsaveshugeamountsoflabour.
随机试题
晒太阳可预防婴幼儿患佝偻病。()
女性,54岁,反复双手腕、近端指间关节、双跖趾关节、双膝关节肿痛伴双手晨僵1年余,无发热、皮疹、口腔溃疡等,未经特殊治疗,三大常规及肝肾功能检查正常。下列哪项检查对诊断最有意义
A.氯化钠B.磷酸盐缓冲液C.硫柳汞D.甲基纤维素E.三氯叔丁醇调节眼用溶液pH、减小药物刺激性的附加剂是
超声波雾化吸入后,不需消毒的物品是
在国内商业银行开办的代理业务中,包括代理股票买卖业务。()
将以下5个句子重新排列组合:①修建一所房屋或者布置一个花园,要让住在别地的朋友知道房屋花园是怎么个光景,就得画关于这所房屋这个花园的图。②编纂关于动物植物的书籍,要让读者明白动物植物外面的形态跟内部的构造,就得画种种动物植物的图。③
上文第二段中[]的恰当措辞应为以下哪一项?( )下列说法不符合文意的是哪一项?( )
(2015年第25题)国家统计局发布的最新数据显示,2014年前三季度我国GDP增长7.4%,其中第三季度增长为7.3%,创下了2009年一季度以来的新低。总体上看,虽然经济增速有所放缓,但国民经济继续运行在合理区间,稳中有进的态势没有变,今后一个时期经济
设矩阵A=,矩阵X满足AX+E=A2+X,其中B为3阶单位矩阵.求矩阵X
A、Itlacksthenecessarybackgroundinformation.B、Themanshouldfindthepropersubjecttoresearchfirstly.C、Itwillbefini
最新回复
(
0
)