Prefrontal activation related to spontaneous creativity with rock music improvisation: A functional near-infrared spectroscopy study
Prefrontal activation related to spontaneous creativity with rock music improvisation: A functional near-infrared spectroscopy study
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DOI：
10.1038/s41598-019-52348-6
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发表时间：
2019-11
影响因子：
4.6
通讯作者：
A. Tachibana;J. A. Noah;Y. Ono;Daisuke Taguchi;S. Ueda
中科院分区：
文献类型：
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作者：
A. Tachibana;J. A. Noah;Y. Ono;Daisuke Taguchi;S. Ueda
近年来，了解大脑如何调节即兴发挥一直是众多研究的重点。模型表明，对默认模式和执行控制网络之间的活动的监管在即兴执行中发挥了作用。几项比较程式化序列和即兴序列的研究支持这一框架，并证明额叶内侧活动增加，而背外侧前额叶皮质(DLPFC)活动减少。这些模式可以通过训练来影响，初学者和专业音乐家的神经反应可能会有所不同。我们的目标是测试这个框架的概括性，并确定即兴发挥过程中前额叶皮质神经活动的相似性。20名吉他手以布鲁斯摇滚乐的形式表演即兴和公式化的序列，同时使用功能性近红外光谱记录大脑活动。结果表明，DLPFC中的调制与之前看到的类似。与临时序列的开始或中间相比，也发现从结尾的左侧DLPFC的活性特定地降低。尽管参与者的技能不同，但我们也发现左DLPFC中即兴表演的主观感受与调制之间存在显著的相关性。对主观感觉的处理与技巧无关，可能有助于神经调节，并可能是理解即兴发挥过程中神经活动的一个因素。
Understanding how the brain modulates improvisation has been the focus of numerous studies in recent years. Models have suggested regulation of activity between default mode and executive control networks play a role in improvisational execution. Several studies comparing formulaic to improvised sequences support this framework and document increases in activity in medial frontal lobe with decreased activity in the dorsolateral prefrontal cortex (DLPFC). These patterns can be influenced through training and neural responses may differ between in beginner and expert musicians. Our goal was to test the generalizability of this framework and determine similarity in neural activity in the prefrontal cortex during improvisation. Twenty guitarists performed improvised and formulaic sequences in a blues rock format while brain activity was recorded using functional near-infrared spectroscopy. Results indicate similar modulation in DLPFC as seen previously. Specific decreases of activity from left DLPFC in the end compared to beginning or middle of improvised sequences were also found. Despite the range of skills of participants, we also found significant correlation between subjective feelings of improvisational performance and modulation in left DLPFC. Processing of subjective feelings regardless of skill may contribute to neural modulation and may be a factor in understanding neural activity during improvisation.