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논문 기본 정보

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학술저널
저자정보
임승영 (대구경북과학기술원) Gwonhyu Jin (DGIST) 정진주 (대구경북과학기술원) 염지우 (DGIST) 제갈장환 (DGIST) 이상임 (대구경북과학기술원) 조정아 (대구경북과학기술원) 이석규 (대구경북과학기술원) 이영미 (DGIST) 김대환 (대구경북과학기술원) 배미정 (DGIST) 허진화 (DGIST) 문제일 (대구경북과학기술원) 이창훈 (대구경북과학기술원)
저널정보
한국뇌신경과학회 Experimental Neurobiology Experimental Neurobiology Vol.27 No.6
발행연도
2018.1
수록면
526 - 538 (13page)

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Gender differences in aggression viewed from an evolutionary and sociocultural perspective have traditionally explained why men engage in more direct and physical aggression, and women engage in more indirect and relational aggression. However, psychological and behavioral studies offer inconsistent support for this theory due to personal or social factors, and little is known about the gender-based neurobiological mechanisms of aggression. This study investigates gender differences in aggression through an analysis of electroencephalography (EEG) and electrocardiography (ECG) based neurobiological responses to commonly encountered stimuli, as well as psychological approaches in healthy Korean youth. Our results from self-reports indicate that overall aggression indices, including physical and reactive/overt aggression, were stronger in men. This agrees with the results of previous studies. Furthermore, our study reveals prominent gender-related patterns in γ signals from the right ventrolateral frontal cortex and changes in heart rate through stimulation by aggressive videos. In particular, gender differences in EEG and ECG responses were observed in response to different scenes, as simple aversion and situation-dependent aggression, respectively. In addition, we discovered decisive gender-distinct EEG signals during stimulation of the situation-dependent aggression regions within the right ventromedial prefrontal and ventrolateral frontal regions. Our findings provide evidence of a psychological propensity for aggression and neurobiological mechanisms of oscillation underlying gender differences in aggression. Further studies of oscillatory responses to aggression and provocation will expand the objective understanding of the different emotional worlds between men and women.

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