How Two Brains Make One Synchronized Mind in the Inferior Frontal Cortex: fNIRS-Based Hyperscanning During Cooperative Singing.
How Two Brains Make One Synchronized Mind in the Inferior Frontal Cortex: fNIRS-Based Hyperscanning During Cooperative Singing.
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DOI：
10.3389/fpsyg.2015.01811
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发表时间：
2015
影响因子：
3.8
通讯作者：
Osaka M
中科院分区：
文献类型：
--
作者：
Osaka N;Minamoto T;Yaoi K;Azuma M;Shimada YM;Osaka M
在所有文化中，一种常见的交流形式是人们一起唱歌。合唱反映了人类大脑认知同步与合作的一个指标。然而，人们对神经同步机制知之甚少。在这里，我们研究了两个大脑如何通过两个人之间的合作唱歌/哼唱和超扫描（一种新的大脑扫描技术）来实现一个同步行为。超扫描使我们能够观察互动参与者之间的动态合作。我们使用功能性近红外光谱（fNIRS）来同时记录两个人在面对面（FtF）或面对面（FtW）条件下合作唱歌或哼歌时的大脑活动。通过计算两个相互作用的大脑之间的脑间小波变换相干性，我们发现，与单独唱歌或哼唱相比，无论FtF或FtW如何，合作唱歌或哼唱的左下额叶皮质（IFC）的神经同步显着增加。另一方面，右侧IFC仅在哼唱时表现出神经同步的增加，这可能是由于更多地依赖于音乐处理。
One form of communication that is common in all cultures is people singing together. Singing together reflects an index of cognitive synchronization and cooperation of human brains. Little is known about the neural synchronization mechanism, however. Here, we examined how two brains make one synchronized behavior using cooperated singing/humming between two people and hyperscanning, a new brain scanning technique. Hyperscanning allowed us to observe dynamic cooperation between interacting participants. We used functional near-infrared spectroscopy (fNIRS) to simultaneously record the brain activity of two people while they cooperatively sang or hummed a song in face-to-face (FtF) or face-to-wall (FtW) conditions. By calculating the inter-brain wavelet transform coherence between two interacting brains, we found a significant increase in the neural synchronization of the left inferior frontal cortex (IFC) for cooperative singing or humming regardless of FtF or FtW compared with singing or humming alone. On the other hand, the right IFC showed an increase in neural synchronization for humming only, possibly due to more dependence on musical processing.