The interaction between parent and adolescent is more challenging than in other age periods. Family cohesion seriously impacts parent-adolescent emotional interactions. However, the underlying neural mechanism has not been fully examined. This study examined the differences in the neural synchrony in response to emotional film clips between high and low family cohesion adolescent-parent dyads by using the electroencephalograph (EEG) hyperscanning. Simultaneously electroencephalograph (EEG) was recorded while 15 low family cohesion parent-adolescent dyads (LFCs)and 14 high family cohesion parent-adolescent dyads (HFCs)received different emotional induction when viewing film clips. Interbrain phase-locking-value (PLV) in gamma band was used to calculate parent-adolescent dyads’ interbrain synchrony. Results showed that higher gamma interbrain synchrony was observed in the HFCs than the LFCs in the positive conditions. However, there was no significant difference between the HFCs and LFCs in other conditions. Also, the HFCs had significantly higher gamma interbrain synchrony in the positive conditions than in the negative conditions. Interbrain synchrony may represent an underlying neural mechanism of the parent-adolescent emotional bonding, which is the core of family cohesion.

中文翻译：

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家庭凝聚力与青少年-父母对情绪刺激的神经同步性的关系

父母与青少年之间的互动比其他年龄段更具挑战性。家庭凝聚力严重影响父母与青少年的情感互动。然而，潜在的神经机制尚未得到充分研究。本研究通过使用脑电图 (EEG) 超扫描检查了高和低家庭凝聚力青少年父母二人组之间对情感电影剪辑的神经同步性差异。同时记录脑电图（EEG），15个家庭凝聚力低的父母-青少年对子（LFCs）和14个家庭凝聚力高的父母-青少年对子（HFCs）在观看电影片段时接受了不同的情绪感应。伽马波段中的脑间锁相值（PLV）用于计算父母-青少年二元组的脑间同步性。结果表明，在阳性条件下，HFCs 中观察到的 γ 脑间同步性高于 LFCs。然而，在其他条件下，HFCs 和 LFCs 之间没有显着差异。此外，HFCs 在阳性条件下的 γ 脑间同步显着高于在阴性条件下。脑间同步可能代表了父母与青少年情感联系的潜在神经机制，这是家庭凝聚力的核心。