Hua Wangchun, Li Yingjie
School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China.
College of International Education, Shanghai University, Shanghai 200444, China.
Brain Sci. 2023 Mar 25;13(4):554. doi: 10.3390/brainsci13040554.
Currently, research mainly focuses on the effects of happy music on the subjective assessment of cognitive reappraisal, but relevant results of the neural mechanism are lacking. By analysing the functional connectivity of microstates based on electroencephalography (EEG), we investigated the effect of cognitive reappraisal combined with happy music on emotional regulation and the dynamic characteristics of brain functional activities. A total of 52 healthy college students were divided into music group and control group. EEG data and behavioural scores were collected during an experiment of cognitive reappraisal combined with happy music. The dynamic time window of the brain functional network was determined by microstate analysis, and the metrics of functional connectivity, clustering coefficient (Cp) and characteristic path length (Lp), were calculated based on the phase-locked value. The arousal of cognitive reappraisal significantly increased ( = 0.005) in music group, but the valence did not change significantly. This suggested that happy music did not affect emotional regulation from the behavioural perspective. Four microstate global templates (A-D) were determined. With happy music, the duration ( = 0.043) and Lp ( = 0.033) of microstate B increased significantly, indicating that the transfection efficiency of the brain network decreased, reflecting a negative effect on cognitive reappraisal. The duration ( = 0.017) of microstate D decreased and of Cp ( < 0.001) increased significantly, indicating that the local information-processing ability of the brain network increased. We conclude that happy music can change the characteristics of brain functional networks and have a positive effect on cognitive reappraisal in specific period. The research provides a certain electrophysiological basis for applying happy music to cognitive reappraisal.
目前，研究主要集中在欢快音乐对认知重评主观评估的影响上，但缺乏神经机制的相关研究结果。通过基于脑电图（EEG）分析微状态的功能连接性，我们研究了认知重评结合欢快音乐对情绪调节和脑功能活动动态特征的影响。52名健康大学生被分为音乐组和对照组。在认知重评结合欢快音乐的实验过程中收集了EEG数据和行为评分。通过微状态分析确定脑功能网络的动态时间窗口，并基于锁相值计算功能连接性指标、聚类系数（Cp）和特征路径长度（Lp）。音乐组中认知重评的唤醒显著增加（P = 0.005），但效价没有显著变化。这表明欢快音乐从行为角度并未影响情绪调节。确定了四个微状态全局模板（A - D）。在欢快音乐作用下，微状态B的持续时间（P = 0.043）和Lp（P = 0.033）显著增加，表明脑网络的传递效率降低，反映出对认知重评有负面影响。微状态D的持续时间（P = 0.017）减少，Cp（P < 0.001）显著增加，表明脑网络的局部信息处理能力增强。我们得出结论，欢快音乐可以改变脑功能网络的特征，并在特定时期对认知重评产生积极影响。该研究为将欢快音乐应用于认知重评提供了一定的电生理基础。
