Zheng Zheng, Wang Jun
School of Psychology, Zhejiang Normal University, Jinhua, People's Republic of China.
Zhejiang Philosophy and Social Science Laboratory for the Mental Health and Crisis Intervention of Children and Adolescents, Zhejiang Normal University, Jinhua, People's Republic of China.
NPJ Sci Learn. 2024 Nov 20;9(1):68. doi: 10.1038/s41539-024-00280-4.
While statistical learning is often studied individually, its collective representation through self-other integration remains unclear. This study examines dynamic self-other integration and its multi-brain mechanism using simultaneous recordings from dyads. Participants (N = 112) each repeatedly responded to half of a fixed stimulus sequence with either an active partner (joint context) or a passive observer (baseline context). Significant individual statistical learning was evident in the joint context, characterized by decreased reaction time (RT) and intra-brain neural responses, followed by a quadratic trend (i.e., first increasing and then decreasing) upon insertion of an interference sequence. More importantly, Brain-to-Brain Coupling (BtBC) in the theta band also showed learning and modulation-related trends, with its slope negatively and positively correlating with the slopes of RT and intra-brain functional connectivity, respectively. These results highlight the dynamic nature of self-other integration in joint statistical learning, with statistical regularities implicitly and spontaneously modulating this process. Notably, the BtBC serves as a key neural correlate underlying the dynamics of self-other integration.
虽然统计学习通常是单独研究的，但其通过自我与他人整合的集体表征仍不清楚。本研究使用二元组的同步记录来检验动态自我与他人整合及其多脑机制。参与者（N = 112）每人都反复对固定刺激序列的一半做出反应，反应时要么是与主动伙伴（联合情境），要么是与被动观察者（基线情境）。在联合情境中，显著的个体统计学习很明显，其特征是反应时间（RT）和脑内神经反应减少，在插入干扰序列后呈现二次趋势（即先增加后减少）。更重要的是，θ波段的脑对脑耦合（BtBC）也显示出与学习和调制相关的趋势，其斜率分别与RT和脑内功能连接的斜率呈负相关和正相关。这些结果突出了联合统计学习中自我与他人整合的动态性质，统计规律隐含且自发地调节这一过程。值得注意的是，BtBC是自我与他人整合动态背后的关键神经关联。
