Leiden University, Institute of Psychology, The Netherlands.
Int J Psychophysiol. 2012 May;84(2):194-200. doi: 10.1016/j.ijpsycho.2012.02.006. Epub 2012 Feb 18.
Previously, electroencephalographic (EEG) delta-beta coupling (positive correlation between power in the fast beta and slow delta frequency bands) has been related to affective processing. For instance, differences in delta-beta coupling have been observed between people in a psychological stress condition and controls. We previously reported relationships between attentional threat processing and delta-beta coupling and individual differences in attentional control. The present study extended and replicated these findings in a large mixed gender sample (N=80). Results demonstrated that emotional Stroop task interference for threatening words was related to self-reported attentional inhibition capacity and frontal delta-beta coupling. There was no clear gender difference for delta-beta coupling (only a non-significant trend) and the relationship between delta-beta coupling and attentional threat-processing was not affected by gender. These results replicate and extend an earlier finding concerning delta-beta coupling and cognitive affect regulation and further clarify relationships between delta-beta coupling, attentional control, and threat-processing.
先前，脑电图（EEG）的 delta-beta 耦合（快 beta 频段和慢 delta 频段之间的功率的正相关关系）与情感处理有关。例如，在心理压力条件下的人与对照组之间观察到 delta-beta 耦合的差异。我们之前报道了注意威胁处理与 delta-beta 耦合以及注意力控制的个体差异之间的关系。本研究在一个大型混合性别样本（N=80）中扩展和复制了这些发现。结果表明，对威胁性单词的情绪 Stroop 任务干扰与自我报告的注意力抑制能力和额叶 delta-beta 耦合有关。delta-beta 耦合没有明显的性别差异（仅存在非显著趋势），并且 delta-beta 耦合与注意力威胁处理之间的关系不受性别影响。这些结果复制并扩展了先前关于 delta-beta 耦合与认知情感调节的发现，并进一步阐明了 delta-beta 耦合、注意力控制和威胁处理之间的关系。
