인간의 시각자극 과제에 관련된 뇌파에 대한 연구

Abstract

Study on brain wave related to visual stimulitask

Jae Wooung Han

Department of Electrical Engineering, The Graduate School, Pukyong National University

In the information age, most people always use the information equipments such as computers and smartphones. Those can be very useful to work but become a serious problem because of being exposed to media regardless of their own will. Especially people are disturbed in their concentration by exposing to media. It has been known that the particular brain waves are induced when a human concentrates. In this paper, it was aimed to analyze EEG signals related to human concentration using visual stimulus to induce the concentration. The visual stimulus tasks were presented to subjects for concentration. The EEG signals were measured with several channels and be analyzed into several frequency bands. In the measured EEG signals, those were analyzed to focus on theta waves, SMR waves and mid-beta waves. Next, it was aimed to analyze the EEG signals related to concentration of adolescents using letter visual stimulus to induce the concentration. The visual stimulus tasks were searching errors of propositional particle in several sentences. In the EEG signals, it was specially focussed on SMR waves and mid-beta waves according to the results of a preceding research. Therefore this paper presented the results to investigate characteristics of the EEG signals related to the human concentration and presented the position of channel and the frequency band of mid-beta significantly related to the concentration waves as the experimental results. It was finally aimed that the results from this paper could be applied to the radiation of the human concentration.