Stress, emotion regulation and cognitive performance: The predictive contributions of trait and state relative frontal EEG alpha asymmetry
Stress, emotion regulation and cognitive performance: The predictive contributions of trait and state relative frontal EEG alpha asymmetry
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DOI：
10.1016/j.ijpsycho.2012.09.008
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发表时间：
2013-02-01
影响因子：
3
通讯作者：
Hatfield, Bradley D.
中科院分区：
文献类型：
--
作者：
Goodman, Ronald N.;Rietschel, Jeremy C.;Hatfield, Bradley D.
额叶脑电α-波段不对称性的特质和状态测量在索引情绪的接近-退缩维度方面的关系尚不清楚。在不同程度的情绪挑战下，研究了这些结构解释情绪调节和认知表现的相对预测能力。能力模型假设的神经基础的相对差异，在电活动之间的左，右额叶作为一种情境机制可能索引前额叶-杏仁核的相互作用和心理状态。EEG，皮肤电导，心率和声学惊吓幅度收集在工作记忆任务下的三个不断增加的压力水平（最后一级是休克的威胁）。在休克的威胁，参与者具有较高的状态不对称表现出更大的情绪调节相比，那些分数较低的指数显着衰减眨眼惊吓幅度。额叶脑电不对称的特质测量未能解释情绪调节的显着变化。结果牵连状态特定的相对左额叶活动具有自适应的作用，在认知挑战的情绪调节，但只有在足够的压力条件下。(C)2012爱思唯尔有限公司版权所有。
The relationship between trait and state measures of frontal lobe EEG alpha-band asymmetry in regard to indexing the approach-withdrawal dimension of emotion is unclear. The comparative predictive power of these constructs to explain emotion regulation and cognitive performance was examined under varying degrees of emotional challenge. The Capability Model posits the neural underpinnings of the relative difference in electrical activity between the left and right frontal lobes as a situational mechanism possibly indexing prefrontal-amygdalar interactions and psychological state. EEG, skin conductance, heart rate and acoustic startle amplitude were collected during a working memory task under three increasing levels of stress (final level was threat of shock). During threat of shock participants with higher state asymmetry exhibited greater emotion regulation compared to those with lower scores as indexed by significant attenuation of eyeblink startle magnitudes. The trait measure of frontal EEG asymmetry failed to account for significant variability in emotion regulation. Results implicate state-specific relative left frontal lobe activity as having an adaptive role in the regulation of emotion during cognitive challenge, but only under conditions of sufficient stress. (C) 2012 Elsevier B.V. All rights reserved.