Cross-modal plasticity of the motor cortex while listening to a rehearsed musical piece
Cross-modal plasticity of the motor cortex while listening to a rehearsed musical piece
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DOI：
10.1111/j.1460-9568.2006.04960.x
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发表时间：
2006-08-01
影响因子：
3.4
通讯作者：
Lotze, M.
中科院分区：
文献类型：
--
作者：
D'Ausilio, A.;Altenmueller, E.;Lotze, M.
学习一首乐曲需要在感觉表征和运动表征之间建立一种强有力的联系。听觉起着核心作用，而紧密的皮层神经-运动共同表征是音乐处理的一个特征。最近的研究表明，在学习一部小说的过程中，听觉皮层和运动皮层之间建立了功能联系，尽管还没有证明因果关系。在这里，经颅磁刺激参与音乐表演的皮质运动表征被用来测试兴奋性的变化，在钢琴演奏者在听觉呈现的排练和非排练的作品。结果表明，增加了运动兴奋性的排练，但不为非排练一块。此外，我们观察到兴奋性随着时间的推移增加，因为在训练30分钟后已经存在皮质内促进作用，而在较长的训练期（5天）后皮质脊髓促进作用增加。
Learning a musical piece requires the development of a strong linkage between sensory and motor representations. Audition plays a central role and a tight cortical auditory-motor corepresentation is a characteristic feature of music processing. Recent works have indicated the establishment of a functional connection between auditory and motor cortices during the learning of a novel piece, although no causal relation has yet been demonstrated. Here transcranial magnetic stimulation of the cortical motor representation involved in musical performance was used to test excitability changes in piano players during auditory presentation of a rehearsed and a non-rehearsed piece. Results showed an increased motor excitability for the rehearsed but not for the non-rehearsed piece. Moreover, we observed an increase of excitability over time as intracortical facilitation was already present after 30 min of training whereas cortico-spinal facilitation increased after a longer training period (5 days).