earticle

영어

First impressions are important in ones school life. We carried out research into first impressions using EEG. Four middle school students participated in this study. We measured EEG when the participants saw the different facial shape and face color in the prefrontal area. We calculated the ratio of θ, α, β and γ using power spectrum analysis. The results are as followed. When they saw the different facial shape, the ratio of β wave was higher in seeing the good feeling facial picture than the general facial picture in individual analysis and group analysis. When they saw the different face color, the ratio of θ wave was lower in seeing the good feeling facial picture than the general facial picture in individual analysis and group analysis. β wave is much larger portion during the complex cognitive task and θ wave is much larger portion during the calm state. Our results suggest that the brain is more complex state in good feeling first impression and that is somewhat different in calm state.