首页
登录
职称英语
What if we could read the mind of a terrorist? Researchers at Northwestern Un
What if we could read the mind of a terrorist? Researchers at Northwestern Un
游客
2024-03-13
20
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 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、present details of a study
C、offer concealed information
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/3529512.html
相关试题推荐
Inlastyear’sSciencestudy,researchersatJohnsHopkinsUniversityexami
Inlastyear’sSciencestudy,researchersatJohnsHopkinsUniversityexami
Inlastyear’sSciencestudy,researchersatJohnsHopkinsUniversityexami
Inlastyear’sSciencestudy,researchersatJohnsHopkinsUniversityexami
Inlastyear’sSciencestudy,researchersatJohnsHopkinsUniversityexami
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
A、Pizzaisnotavailable.B、Itistoocrowded.C、Thepriceistoohigh.D、Hedis
简述微粒分散体系理论在药剂学中的重要意义。
某幢住宅楼,采用TN-C-S三相供电,其供电电缆有几根导体?()A.三根相线
操作比较简单,但对基层或底板的平整度要求较高的软包墙面具体做法为()。A.预制
路由器收到-一个IP数据包,其目标地址为192.168.17.4,与该地址匹配
化脓性脑膜炎并发脑积水时下列哪项陈述是错误的A.发生于急性期 B.炎症后发生粘
茯苓的功效是()A.清热,除痹 B.消肿,散结 C.止咳,除痹
总体规划审查报批工作周期,一般不超过()A.3个月 B.5个月 C.7个
具体审计计划是依据总体审计计划制订的,对实施总体审计计划所需要审计程序的性质、时
商业银行下列部门中,应在其职责分工和专业特长范围内为其他部门提供管理操作风险的资
最新回复
(
0
)