The Multiple-Demand System in the Novelty of Musical Improvisation: Evidence from an MRI Study on Composers.
The Multiple-Demand System in the Novelty of Musical Improvisation: Evidence from an MRI Study on Composers.
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即兴音乐新颖性中的多重需求系统：来自作曲家 MRI 研究的证据
DOI：
10.3389/fnins.2017.00695
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发表时间：
2017
影响因子：
4.3
通讯作者：
Yao D
中科院分区：
文献类型：
--
作者：
Lu J;Yang H;He H;Jeon S;Hou C;Evans AC;Yao D
多需求系统（multiple-demand system，MD）已被证明与在综合行为中创建结构化的心理程序有关，但在音乐领域，该系统的功能机制尚未阐明。在这项研究中，我们探讨了一个假设，即MD系统参与了一个全面的音乐相关的行为，称为音乐即兴。在功能磁共振成像（fMRI）的范式下，29名作曲家被招募到即兴旋律通过视觉意象任务根据熟悉和不熟悉的线索。我们发现MD系统的主要区域在两种音乐即兴创作条件下都被显著激活。然而，只有一个更大的参与顶内沟（IPS）内MD系统时，即兴与不熟悉的线索。我们的研究结果表明，MD系统强烈参与音乐即兴创作，通过处理旋律的新奇，工作记忆和注意力。特别是，即兴与不熟悉的线索需要更多的音乐换位操纵。此外，功能和结构分析表明，在MD区域的神经可塑性的证据，可能与音乐即兴训练。这些发现有助于揭示MD系统在音乐认知中的功能机制，并有助于提高我们对音乐即兴创作的理解。
The multiple-demand (MD) system has proven to be associated with creating structured mental programs in comprehensive behaviors, but the functional mechanisms of this system have not been clarified in the musical domain. In this study, we explored the hypothesis that the MD system is involved in a comprehensive music-related behavior known as musical improvisation. Under a functional magnetic resonance imaging (fMRI) paradigm, 29 composers were recruited to improvise melodies through visual imagery tasks according to familiar and unfamiliar cues. We found that the main regions of the MD system were significantly activated during both musical improvisation conditions. However, only a greater involvement of the intraparietal sulcus (IPS) within the MD system was shown when improvising with unfamiliar cues. Our results revealed that the MD system strongly participated in musical improvisation through processing the novelty of melodies, working memory, and attention. In particular, improvising with unfamiliar cues required more musical transposition manipulations. Moreover, both functional and structural analyses indicated evidence of neuroplasticity in MD regions that could be associated with musical improvisation training. These findings can help unveil the functional mechanisms of the MD system in musical cognition, as well as improve our understanding of musical improvisation.
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影响因子：
1.3
作者：
COLLINS, DL;NEELIN, P;EVANS, AC
通讯作者：
EVANS, AC
影响因子：
2.9
作者：
Coffey EB;Herholz SC
通讯作者：
Herholz SC
DOI：
10.1073/pnas.1112937108
发表时间：
2011-09-27
影响因子：
11.1
作者：
Fedorenko, Evelina;Behr, Michael K.;Kanwisher, Nancy
通讯作者：
Kanwisher, Nancy
影响因子：
1.4
作者：
BENNETT, S
通讯作者：
BENNETT, S
影响因子：
5.7
作者：
Cole, Michael W.;Schneider, Walter
通讯作者：
Schneider, Walter