Hostility- and Gender-Related Differences in Oscillatory Responses to Emotional Facial Expressions

被引:21
|
作者
Knyazev, Gennady G. [1 ]
Bocharov, Andrey V. [1 ]
Slobodskoj-Plusnin, Jaroslav Yu [1 ]
机构
[1] SB RAMS, State Res Inst Physiol, Novosibirsk 630117, Russia
基金
俄罗斯基础研究基金会;
关键词
hostility; gender; emotional facial expressions; EEG; event-related spectral perturbations; EVENT-RELATED DESYNCHRONIZATION; VISUAL-SPATIAL ATTENTION; HIGH-RESOLUTION EEG; SEX-DIFFERENCES; AGGRESSIVE-BEHAVIOR; RELATIONAL AGGRESSION; INTENT ATTRIBUTIONS; INHIBITORY CONTROL; ALPHA; SYNCHRONIZATION;
D O I
10.1002/ab.20318
中图分类号
B84 [心理学]; C [社会科学总论]; Q98 [人类学];
学科分类号
03 ; 0303 ; 030303 ; 04 ; 0402 ;
摘要
Hostility is associated with biases in the perception of emotional facial expressions, such that ambiguous or neutral expressions tend to be perceived as threatening or angry. In this study, the effects of hostility and gender on the perception of angry, neutral, and happy faces and on the oscillatory dynamics of cortical responses elicited by these presentations were investigated using time-frequency decomposition by means of wavelet transforms. Feelings of hostility predisposed subjects to perceive happy and neutral faces as less friendly. This effect was more pronounced in women. In hostile subjects, presentation of emotional facial expressions also evoked stronger posterior synchronization in the theta and diminished desynchronization in the alpha band. This may signify a prevalence of emotional responding over cognitive processing. These effects were also more pronounced in females. Hostile females, but not hostile males, additionally showed a widespread synchronization in the alpha band. This synchronization is tentatively explained as a manifestation of inhibitory control which is present in aggressive females, but not in aggressive males. Aggr. Behav. 35:502-513, 2009. (C) 2009 Wiley-Liss, Inc.
引用
收藏
页码:502 / 513
页数:12
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