首页
登录
职称英语
What if we could read the mind of a terrorist? Researchers at Northweste
What if we could read the mind of a terrorist? Researchers at Northweste
游客
2023-08-08
56
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 Rosenf eld 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] How can the P300 be made more accurate?
选项
A、By measuring responses like respiration and sweating.
B、By triggering a lie or getting rid of any high-stress situation.
C、By eliminating the interrogation of the police.
D、By presenting more details to a suspect.
答案
D
解析
细节辨认题。由定位句可知,提高P300准确性的一个方法是增加出示给嫌疑人的细节的数量。D是对定位句的同义转述,故为答案。
转载请注明原文地址:http://tihaiku.com/zcyy/2908318.html
相关试题推荐
Inlastyear’sSciencestudy,researchersatJohnsHopkinsUniversityexami
Inlastyear’sSciencestudy,researchersatJohnsHopkinsUniversityexami
Inlastyear’sSciencestudy,researchersatJohnsHopkinsUniversityexami
Whatifwecouldreadthemindofaterrorist?ResearchersatNorthwesternUn
Whatifwecouldreadthemindofaterrorist?ResearchersatNorthwesternUn
Whatifwecouldreadthemindofaterrorist?ResearchersatNorthwesternUn
Aftertheterroristattack,tourists_______________________(被劝告暂时不要去该国旅游).were
[originaltext]ResearchersatStanfordUniversityhavedevelopedanewmater
[originaltext]ResearchersatStanfordUniversityhavedevelopedanewmater
[originaltext]Bitcoinisadigitalcurrencyusedbyterroristsanddrugdea
随机试题
Theproblemof______toselectashissuccessorwasquicklydisposedof.A、what
[originaltext]W:Hi,Mike,doyouhaveaminutetospare?M:Yes,Sherry,howc
关于移动通信系统的移动交换中心,下列表述正确的是()。A.移动交换中心作用是对区
A
在CPU和主存之间设置高速缓存(Cache)的目的是解决()的问题。A.主
男孩9岁,来自农村。今晨起感双下肢无力,疼痛不能行走,6小时后双上肢也出现无力,
怀疑肛管直肠肿瘤,最简单而重要的检查是A.乙状结肠镜检查 B.直肠指诊 C.
共用题干 方先生今年38岁,月平均工资5000元;方太太36岁,月平均工资60
实质教育论
关于节水与水资源利用,《循环经济促进法》规定,国家鼓励和支持使用再生水。《绿色施
最新回复
(
0
)