American scientists have learned how to detect terrorists using a special instrument
Psychologists from Northwestern University (Illinois, USA) claim that using the new device will not only identify the terrorists, but also know the time and place of forthcoming crime.
In the 80s, Peter Rosenfeld, a professor of psychology combined test for deliberate guilt recording of brain electrical activity. He measured the brain waves, called P300, which occurs in response to a visual stimulus after a delay of 300 milliseconds, and can be detected by electrodes attached to the head
The study involved 29 students were divided into two groups: the “guilty” and “innocent.” Group of “guilty” was given a document that explained that they should play the role of terrorists planning to attack, and described the four ways of carrying out attacks, the types of bombs, which can be used, place in Houston and Texas, which can be attacked, and date a possible attack in July.
After this fictitious attack was planned, they wrote a letter to his imaginary head, which describe their chosen options, in order to better remember details of the plan. Members of the group of “innocent”, and made plans for the holidays.
Then, both groups had shown a long list of words on a computer screen, while the researchers measured their P300-response. Most of the words were neutral with respect to the fictitious attack, but there were inserted a few specific words relating to the developed plan, which caused an increase in the number of P300 waves among those participants who knew about the details of a fictitious attack.
Researchers were able to correctly identify all members of the group “guilty”, never made a mistake. Also, they were able to identify most of the details relating to the future “attack”, correctly identifying the time and place of attack.
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