Frontal Electroencephalogram (EEG) asymmetry during emotion‐eliciting tasks has been underexplored, and the current study considered changes in infant frontal asymmetry during positive and negative emotion‐eliciting tasks relative to baseline, consistent with the capability model. Importantly, variability in parent–child interaction factors related to task‐related EEG asymmetry changes was examined. Healthy infants participated in the Peek‐a‐boo component of the Laboratory Temperament Assessment Battery and the Repeated Still Face, with EEG data collected simultaneously. Asymmetry changes from baseline to Peek‐a‐boo and the second Still Face administration were considered with respect to parent–child interaction dynamics, coded utilizing an established scheme. ANCOVAs were conducted, with age and child sex as covariates, parent–child interaction factors as dependent variables, and Peek‐a‐boo/Repeated Still Face asymmetry changes from baseline as independent variables, dichotomized as either positive or negative in direction (i.e., associated with either a shift toward relative left or right frontal activation). Results indicated that groups based on changes in frontal EEG asymmetry from baseline to Still Face were associated with significantly different levels of reciprocity/synchrony, intensity, and directedness in mother–infant play exchanges. Results highlight the importance of understanding task‐related EEG activation and links with parent–child interactions, providing further support for the capability model.

中文翻译：

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脑波前额不对称性在情绪激发任务和亲子互动动力学过程中发生变化

情绪激发任务中的额叶脑电图（EEG）不对称性尚未得到充分研究，当前研究考虑了在正负情绪激发任务中相对于基线的婴儿额叶不对称性的变化，与能力模型相一致。重要的是，研究了与任务相关的脑电图不对称性变化有关的亲子互动因素的变异性。健康婴儿参加了“实验室气质评估组”的“捉迷藏”部分和“重复静脸”活动，同时收集了脑电图数据。从基线到Peek-a-boo的不对称性变化以及第二次Still Face管理均考虑了使用既定方案编码的亲子互动动力学。进行ANCOVA，将年龄和儿童性别作为协变量，亲子互动因素作为因变量，并且Peek-a-boo /重复静止面部不对称性从基线变化为自变量，分为方向为正或负（即，与向相对的左或右额叶激活有关） ）。结果表明，基于从基线到静止面部的额叶脑电图不对称性变化的组与母婴游戏交换中的互惠/共融，强度和定向性水平显着不同相关。结果强调了理解与任务相关的脑电图激活以及与亲子互动的链接的重要性，这为能力模型提供了进一步的支持。在方向上被分为正向或负向（即，与向相对的左或右额叶激活相关的移动相关）。结果表明，基于从基线到静止面部的额叶脑电图不对称性变化的组与母婴游戏交换中的互惠/共融，强度和定向性水平显着不同相关。结果突出了理解与任务相关的脑电图激活以及与亲子互动的链接的重要性，这为能力模型提供了进一步的支持。在方向上被分为正向或负向（即，与向相对的左或右额叶激活相关的移动相关）。结果表明，基于从基线到静止面部的额叶脑电图不对称性变化的组与母婴游戏交换中的互惠/共融，强度和定向性水平显着不同相关。结果突出了理解与任务相关的脑电图激活以及与亲子互动的链接的重要性，这为能力模型提供了进一步的支持。母婴游戏交流中的强度和定向性。结果强调了理解与任务相关的脑电图激活以及与亲子互动的链接的重要性，这为能力模型提供了进一步的支持。母婴游戏交流中的强度和定向性。结果强调了理解与任务相关的脑电图激活以及与亲子互动的链接的重要性，这为能力模型提供了进一步的支持。