METHOD FOR DETERMINING PSYCHOLOGICAL STATE OF SUBJECT USING EEG SIGNALS MEASURED IN QUESTION AND ANSWER PROCESS AND SECURITY SYSTEM USING SAME

摘要

The present invention relates to a method for determining a psychological state of a subject using electroencephalography (EEG) signals measured in a question and answer process, in which the EEG signals, which are biosignals generated involuntarily from the human body, are used to determine a psychological state of a subject, and to a security system using the same. To this end, the method comprises: (a) a preparation step of recording and storing EEG signal data for a predetermined time; (b) a step of recording EEG signals generated until subjects answer to the question is input after presenting at least one question at the request of the subject, and EGG signals generated before the next question is asked after the subject has answered the previous question; (c) a step of calculating a plurality of factors from the EEG signals recorded in the step (b); and (d) a step of determining a psychological state of the subject based on the EEG signal data stored in the step (a) and the plurality of factors calculated in the step (c). According to the present invention, it is possible to instantly determine possibility of leakage of inside information using biosignals of a subject, thereby preventing the inside information of an organization from being leaked to an external side.;COPYRIGHT KIPO 2019