State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, P.R. China.
Research Center for Child Development, School of Psychology, Capital Normal University, Beijing 100875, P.R. China.
Cereb Cortex. 2021 Jul 29;31(9):4398-4410. doi: 10.1093/cercor/bhab094.
While social interaction between a mother and her child has been found to play an important role in the child's committed compliance, the underlying neurocognitive process remains unclear. To investigate this process, we simultaneously recorded and assessed brain activity in 7-year-old children and in children's mothers or strangers during a free-play task using functional near-infrared spectroscopy-based hyperscanning. The results showed that a child's committed compliance was positively associated with the child's responsiveness but was negatively associated with mutual responsiveness and was not associated with the mother's responsiveness during mother-child interactions. Moreover, interpersonal neural synchronization (INS) at the temporoparietal junction mediated the relationship between the child's responsiveness and the child's committed compliance during mother-child interactions when the child's brain activity lagged behind that of the mother. However, these effects were not found during stranger-child interactions, nor were there significant effects in the mother-child pair when no real interactions occurred. Finally, we found a transfer effect of a child's committed compliance from mother-child interactions to stranger-child interactions via the mediation of mother-child INS, but the opposite did not occur. Together, these findings suggest that a child's responsiveness during mother-child interactions can significantly facilitate her or his committed compliance by increasing mother-child INS.
虽然已经发现母亲与孩子之间的社会互动对孩子的坚定依从起着重要作用，但潜在的神经认知过程仍不清楚。为了研究这一过程，我们使用基于功能近红外光谱的超扫描技术，在自由玩耍任务中同时记录和评估了 7 岁儿童及其母亲或陌生人的大脑活动。结果表明，孩子的坚定依从与孩子的反应性呈正相关，与相互反应性呈负相关，与母子互动中母亲的反应性无关。此外，当孩子的大脑活动滞后于母亲的大脑活动时，人际神经同步（INS）在颞顶联合区中介了孩子的反应性与孩子在母子互动中的坚定依从之间的关系。然而，在与陌生人的互动中没有发现这些影响，在没有实际互动的母子对中也没有显著影响。最后，我们发现孩子在母子互动中的坚定依从可以通过母子 INS 的中介作用从母子互动转移到与陌生人的互动中，但反之则不然。综上所述，母子互动中孩子的反应性可以通过增加母子 INS 显著促进孩子的坚定依从。
