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首页> 美国卫生研究院文献>Social Cognitive and Affective Neuroscience >Low delta and high alpha power are associated with better conflict control and working memory in high mindfulness low anxiety individuals
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Low delta and high alpha power are associated with better conflict control and working memory in high mindfulness low anxiety individuals

机译：在正念低焦虑的个体中低增量和高阿尔法能力与更好的冲突控制和工作记忆有关

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Working memory capacity (WMC) can predict conflict control ability. Measures of both abilities are impaired by anxiety, which is often inversely linked with mindfulness. It has been shown that a combination of high mindfulness and low anxiety is associated with better conflict control and WMC. The current study explored the electrophysiology related to such behavioral differences. Two experimental groups, one with high mindfulness and low anxiety (HMLA) and one with low mindfulness and high anxiety (LMHA), performed a color Stroop task and a change detection task, both with simultaneous electroencephalogram (EEG) recording. An advanced EEG analytical approach, Hilbert–Huang transform (HHT) analysis, was employed. This is regarded as a robust method to analyze non-linear and non-stationary signals. Lower delta activity at posterior temporal and occipital regions was seen in the HMLA group for the Stroop conflict conditions and might be generally associated with higher accuracy in this group and indicative of higher attentiveness. Higher accuracy rates and WMC were seen in the HMLA group and might be specifically associated with the higher alpha activity observed in prefrontal cortex, fronto-central and centro-parietal regions in this group. Future studies should explore how mindfulness and anxiety can independently affect these cognitive functions and their associated neurophysiology.
机译：工作内存容量（WMC）可以预测冲突控制能力。焦虑会削弱这两种能力的度量，而焦虑通常与正念成反比。研究表明，高度专注和低焦虑与更好的冲突控制和WMC相关。当前的研究探索了与这种行为差异有关的电生理学。两个实验组，一个具有高度正念和低焦虑（HMLA），另一个具有较低的正念和高焦虑（LMHA），执行了彩色Stroop任务和变化检测任务，并同时记录了脑电图（EEG）。使用了一种先进的EEG分析方法，希尔伯特-黄变换（HHT）分析。这被认为是分析非线性和非平稳信号的可靠方法。在HMLA组中，对于Stroop冲突情况，在颞后部和枕骨后部区域的三角洲活动较低，这通常与该组中较高的准确性相关，并表明注意力较高。在HMLA组中观察到较高的准确率和WMC，并且可能与在该组中的前额叶皮层，额中中心和顶顶中心区观察到的更高的α活性有关。未来的研究应探讨正念和焦虑如何独立影响这些认知功能及其相关的神经生理学。

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