The polygraph test involves collecting data on a person’s physiological indicators: sweating, peripheral vascular activity, breathing. By asking a person questions and analyzing the machine’s indicators, a polygraph examiner can understand that this or that question we ask the person is important to him. To do this, experts use two popular methods, a polygraph examiner, an employee of the VB Psychophysiology Laboratory, told socialbites.ca. Shvyrkova Institute of Psychology RAS Andrey Uchaev.
“Two main testing methods are generally used: Identification of confidential information and security questions. Example one. We ask the person questions about specific symptoms of the event. For example, in case of theft, amounts of money, tools used to enter the safe, etc. we list. At the same time, we observe changes in the indicators. “If we see that the problems are important for a person, he is most likely involved in crime,” he noted.
However, there is a minus here; According to Uchaev, the person who knows the details of the incident can also be caught. The second method of control questions means asking the person directly what he or she is doing.
“For example, “Did you take the missing money from the safe?” This question is called a test question. Neutral questions that should not evoke a response are also used, for example: “Is your name Mikhail?” It is difficult to name more control questions because they will vary depending on the theories behind them. We compare the importance of verification and control questions and come to a conclusion as to whether the person is involved or not,” the expert concluded.
Psychologists before offered It’s a way to create immunity against disinformation.