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
2023-08-12
41
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] Why has the P300 not been used by law enforcement in even one country?
选项
A、Because it has not proved to be a reliable way of getting information.
B、Because information to be confirmed should be exact.
C、Because suspects’ relatives need to be involved in the process.
D、Because the technology is too sophisticated to be put into practice.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2919162.html
相关试题推荐
Researchershavereconstructedanancienthumangenome(基因组)forthefirstt
Researchershavereconstructedanancienthumangenome(基因组)forthefirstt
AnewstudyfromresearchersinEuropeclaimsthattheaverageIQinWestern
AnewstudyfromresearchersinEuropeclaimsthattheaverageIQinWestern
AnewstudyfromresearchersinEuropeclaimsthattheaverageIQinWestern
AnewstudyfromresearchersinEuropeclaimsthattheaverageIQinWestern
AnewstudyfromresearchersinEuropeclaimsthattheaverageIQinWestern
AnewstudyfromresearchersinEuropeclaimsthattheaverageIQinWestern
Researchershavereconstructedanancienthumangenome(基因组)forthefirsttim
Researchershavereconstructedanancienthumangenome(基因组)forthefirsttim
随机试题
Amajorreasonforconflictintheanimalworldisterritory.Themaleani
2013年6月,我国进口0.91万亿元人民币(折合1471.9亿美元),同比下降
男,6岁,最近经常夜间惊醒,尖叫,面部表情恐怖,醒后对夜惊发作的内容完全遗忘。如
《垂死的母狮》是()时期的浮雕作品。A.古代非洲 B.古希腊 C.古代两
对于高等教育阶段的通识教育与专业教育的关系,一般认为是()。A.通识教育与专
Thechangeinthatvillagewasmiraculou
《国务院关于加强城乡规划监督管理的通知》从端正城市建设指导思想,明确近期城市建设
霍华德“田园城市”理论中不包括( )。A.城市土地归国家所有 B.城市外围保
处理劳动争议的过程中发生的费用统称为( )。A.劳动争议处理费用B.劳动争议诉
患者,男,45岁,用香加皮、当归、川芎、红花自制药酒,服后出现恶心、呕吐、腹痛、
最新回复
(
0
)