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Gender differences in aggression-related responses on EEG and ECG
- Gender differences in aggression-related responses on EEG and ECG
- Im, Seung Yeong; Jin, Gwonhyu; Jeong, Jin Ju; Yeom, Jiwoo; Jekal, Janghwan; Lee, Sang-im; Cho, Jung Ah; Lee, Sukkyoo; Lee, Youngmi; Kim, Dae-Hwan; Bae, Mijeong; Heo, Jinhwa; Moon, Cheil; Lee, Chang-Hun
- DGIST Authors
- Lee, Sang-im; Lee, Sukkyoo; Moon, Cheil; Lee, Chang-Hun
- Issue Date
- Experimental Neurobiology, 27(6), 526-538
- Article Type
- 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 aggress on. 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 iscovered 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.
- Related Researcher
Brain convergent science based on chemical senses; olfaction; 감각신경계 기반 뇌융합과학; 후각 신경계
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