Theta and delta band activity explain N2 and P3 ERP component activity in a go/no-go task.
Theta and delta band activity explain N2 and P3 ERP component activity in a go/no-go task.
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Theta和Delta频段活动在GO/NO-GO任务中解释了N2和P3 ERP组件活动。
DOI：
10.1016/j.clinph.2013.06.025
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发表时间：
2014-01
期刊：
影响因子：
--
通讯作者：
Bernat EM
中科院分区：
文献类型：
--
作者：
Harper J;Malone SM;Bernat EM
最近的研究表明，赌博反馈任务的反馈负性（FN）和P3成分可以理解为分别发生在θ和δ频段的功能不同过程的混合物。目前的研究是为了评估发生在θ和δ波段的可解离过程是否会类似地解释在go/no-go任务中N2和P3成分的活动。本研究测量了66名参与者在go/nogo任务期间的脑电图信号，并使用时频（TF）主成分分析（PCA）分解方法从状态平均值中提取theta和delta测量值。正如预测的那样，Theta和delta测量分别与反应抑制相关，并且与N2和P3成分唯一相关。研究结果支持了theta和delta测量指数与反应抑制相关的可分离过程的观点，并且更好地索引了该go/ o-go任务中N2和P3分量的基础过程，theta和delta测量指数可以索引其他常见ERP任务中的可分离功能过程，并且相对于标准时域分量可能是一个改进的研究目标。
Recent work indicates that the feedback negativity (FN) and P3 components from gambling feedback tasks can be understood as mixtures of functionally distinct processes occurring separately in theta and delta frequency bands. The current study was conducted to assess whether dissociable processes occurring in the theta and delta bands would similarly account for activity underlying N2 and P3 components in a go/no-go task. The current study measured EEG signals from 66 participants during a go/nogo task, and a time-frequency (TF) principal components analysis (PCA) decomposition approach was used to extract theta and delta measures from condition averages. Theta and delta measures separately increased in relation to response inhibition, and were uniquely related to the N2 and P3 components, as predicted. Findings support the view that the theta and delta measures indexed separable processes related to response inhibition, and better indexed the processes underlying N2 and P3 components in this go/no-go task Theta and delta measures may index separable functional processes across other common ERP tasks, and may represent an improved target for research relative to standard time-domain components.
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