PDF(Pubmed)
Abstract：
UNASSIGNED: Percussionists stand out for their expertise in rhythm, with the network for musical rhythm (NMR) serving a vital neurological function in their improvisation, which is deeply rooted in comprehensive musical knowledge. Our research examines the central representations of various improvisation tactics used by percussionists and investigates the interactions between the NMR and other relevant neural networks.
UNASSIGNED: Twenty-five percussionists participated in functional magnetic resonance imaging (fMRI) sessions, which included two cognitive strategies of improvisation. Structural improvisation (SIMP) emphasized rhythmic patterns, while free improvisation (FIMP) focused on musical spontaneity. Sight-reading scenario served as the reference condition. Paired t-tests were utilized for comparative analyses.
UNASSIGNED: The findings revealed a dynamic interplay characterized by increased activity in the executive control network and NMR, along with decreased activity in the default mode network during SIMP. During FIMP, heightened activity was observed in the executive control network, NMR, limbic, and memory systems. In both SIMP vs. sight-reading and FIMP vs. sight-reading comparisons, the visual network\'s activity decreased, a trend also observed in the comparative analysis of FIMP vs. SIMP.
UNASSIGNED: In SIMP, percussionists leverage external rhythmic signals, resulting in heightened NMR and ECN activity and reduced DMN activity. In contrast, FIMP is characterized by a rise in activity within the NMR, ECN, limbic system, memory system, and reward system, underscoring the vital roles of motivation and memory in the rapid production of spontaneous musical ideas within set frameworks. The diminished activity in the visual network during FIMP compared to SIMP suggests less reliance on visual stimuli in FIMP. These findings suggest that various improvisational tactics may engage different neural pathways.
UNASSIGNED: Twenty-five percussionists participated in functional magnetic resonance imaging (fMRI) sessions, which included two cognitive strategies of improvisation. Structural improvisation (SIMP) emphasized rhythmic patterns, while free improvisation (FIMP) focused on musical spontaneity. Sight-reading scenario served as the reference condition. Paired t-tests were utilized for comparative analyses.
UNASSIGNED: The findings revealed a dynamic interplay characterized by increased activity in the executive control network and NMR, along with decreased activity in the default mode network during SIMP. During FIMP, heightened activity was observed in the executive control network, NMR, limbic, and memory systems. In both SIMP vs. sight-reading and FIMP vs. sight-reading comparisons, the visual network\'s activity decreased, a trend also observed in the comparative analysis of FIMP vs. SIMP.
UNASSIGNED: In SIMP, percussionists leverage external rhythmic signals, resulting in heightened NMR and ECN activity and reduced DMN activity. In contrast, FIMP is characterized by a rise in activity within the NMR, ECN, limbic system, memory system, and reward system, underscoring the vital roles of motivation and memory in the rapid production of spontaneous musical ideas within set frameworks. The diminished activity in the visual network during FIMP compared to SIMP suggests less reliance on visual stimuli in FIMP. These findings suggest that various improvisational tactics may engage different neural pathways.
摘要：
■打击乐演奏家以其节奏专长而脱颖而出，音乐节奏（NMR）网络在他们的即兴创作中发挥了重要的神经功能，它深深植根于全面的音乐知识。我们的研究检查了打击乐手使用的各种即兴战术的中心表示，并研究了NMR与其他相关神经网络之间的相互作用。
■25名打击乐手参加了功能磁共振成像（fMRI）会议，其中包括两种即兴的认知策略。结构即兴（SIMP）强调节奏模式，而自由即兴创作（FMP）专注于音乐自发性。阅读场景作为参考条件。配对t检验用于比较分析。
■研究结果揭示了一种动态的相互作用，其特征是执行控制网络和NMR的活动增加，随着SIMP期间默认模式网络中的活动减少。在FMP期间,在执行控制网络中观察到活动增强，NMR,边缘,和记忆系统。在SIMP与视力阅读和FMPvs.视力比较，视觉网络的活动减少，在FMP与FMP的比较分析中也观察到了一种趋势。SIMP。
■在SIMP中，打击乐手利用外部节奏信号，导致增强的NMR和ECN活性和降低的DMN活性。相比之下,FIMP的特征是NMR中的活性上升，ECN,边缘系统,内存系统,和奖励制度，强调动机和记忆在设定框架内快速产生自发音乐思想中的重要作用。与SIMP相比，FMP期间视觉网络的活动减少表明FMP对视觉刺激的依赖性较小。这些发现表明，各种即兴战术可能涉及不同的神经通路。
■25名打击乐手参加了功能磁共振成像（fMRI）会议，其中包括两种即兴的认知策略。结构即兴（SIMP）强调节奏模式，而自由即兴创作（FMP）专注于音乐自发性。阅读场景作为参考条件。配对t检验用于比较分析。
■研究结果揭示了一种动态的相互作用，其特征是执行控制网络和NMR的活动增加，随着SIMP期间默认模式网络中的活动减少。在FMP期间,在执行控制网络中观察到活动增强，NMR,边缘,和记忆系统。在SIMP与视力阅读和FMPvs.视力比较，视觉网络的活动减少，在FMP与FMP的比较分析中也观察到了一种趋势。SIMP。
■在SIMP中，打击乐手利用外部节奏信号，导致增强的NMR和ECN活性和降低的DMN活性。相比之下,FIMP的特征是NMR中的活性上升，ECN,边缘系统,内存系统,和奖励制度，强调动机和记忆在设定框架内快速产生自发音乐思想中的重要作用。与SIMP相比，FMP期间视觉网络的活动减少表明FMP对视觉刺激的依赖性较小。这些发现表明，各种即兴战术可能涉及不同的神经通路。
