首页
登录
职称英语
What if we could read the mind of a terrorist? Researchers at Northwestern Uni
What if we could read the mind of a terrorist? Researchers at Northwestern Uni
游客
2024-03-09
46
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 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. [br] The limitation of the P300’s "confounding factors" is likely to________.
选项
A、hide the truth
B、offer concealed information
C、present details of a study
D、affect the results of a study
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3518328.html
相关试题推荐
Whatifwecouldreadthemindofaterrorist?ResearchersatNorthwesternUni
Whatifwecouldreadthemindofaterrorist?ResearchersatNorthwesternUni
[originaltext]Anapplication,orapp,developedbyresearchersattheUnive
[originaltext]Anapplication,orapp,developedbyresearchersattheUnive
[originaltext]ResearchersattheUniversityofKansassaythatpeoplecana
[originaltext]ResearchersattheUniversityofKansassaythatpeoplecana
[originaltext]Bitcoinisadigitalcurrencyusedbyterroristsanddrugdea
[originaltext]Bitcoinisadigitalcurrencyusedbyterroristsanddrugdea
[originaltext]Bitcoinisadigitalcurrencyusedbyterroristsanddrugdea
USCresearchershaveshownthatwhenwe’retiredorstressed,we’rejustas
随机试题
Everyonewantstobehealthyandhappy.【C1】______,illnessoraccidentsmay
IwastalkingwithaseniorPublicRelationsmanagertheotherdayaboutThe
July10,2006
有关法与科技的说法中,下列哪一选项是错误的?()《》()A.人们的法律意识常
工程竣工后的建筑消防验收,应检查其消防设施配置是否符合()的要求。A.已获审核
血瘀型经间期出血的治疗应首选A.逐瘀止血汤 B.桃红四物汤 C.两地汤合二至
某孕妇,妊娠36周,因阴道持续性流液1小时来院求诊。肛查时羊水不断从阴道流出,诊
()指空间上接近、时间上连续、形状上相同、颜色上一致的事物,易于构成一个整体
42岁男性农民,江苏人,1月前,因下稻田着凉,近日发热2周,畏寒,体温在38℃上
项目在国民经济评价中,直接出口产品影子价格的计算公式为() A.到岸价X影
最新回复
(
0
)