Center for Lifespan Psychology, Max Planck Institute for Human Development Berlin, Germany.
Front Hum Neurosci. 2013 Jun 4;7:234. doi: 10.3389/fnhum.2013.00234. eCollection 2013.
To investigate whether directionality in hyperbrain networks reflects different roles during interpersonal action coordination (IAC), we recorded EEG data from pairs of guitarists playing together as musical leaders versus followers. We used an asymmetric index of in-phase synchronization to analyze hyperbrain networks of directed functional connectivity in the alpha and beta frequency ranges for time segments around coordinated play onsets. After exploring the small-world characteristics of the networks at different thresholds, we examined the directed connection strengths within and between brains. As predicted, we found evidence suggesting that the musical roles of leader and follower are associated with different patterns of directed between-brain couplings. The functional significance of these differences for IAC requires further study.
为了探究超脑网络中的方向性是否反映了人际动作协调（IAC）过程中的不同角色，我们记录了 pairs of guitarists 一起演奏时的 EEG 数据，他们分别担任音乐领导者和跟随者的角色。我们使用非对称的同相同步指数来分析在协调演奏开始前后的时间片段中，alpha 和 beta 频带的超脑网络的有向功能连接。在探索了不同阈值下网络的小世界特征后，我们检查了大脑内部和大脑之间的有向连接强度。正如我们所预测的，有证据表明，领导者和跟随者的音乐角色与大脑之间不同的有向耦合模式有关。这些差异对 IAC 的功能意义需要进一步研究。
