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首页> 外文期刊>NeuroImage >Dissociation between melodic and rhythmic processing during piano performance from musical scores.
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Dissociation between melodic and rhythmic processing during piano performance from musical scores.

机译：在钢琴演奏过程中，乐曲与节奏处理之间的分离与乐谱有关。

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摘要

When performing or perceiving music, we experience the melodic (spatial) and rhythmic aspects as a unified whole. Moreover, the motor program theory stipulates that the relative timing and the serial order of the movement are invariant features of a motor program. Still, clinical and psychophysical observations suggest independent processing of these two aspects, in both production and perception. Here, we used functional magnetic resonance imaging to dissociate between brain areas processing the melodic and the rhythmic aspects during piano playing from musical scores. This behavior requires that the pianist decodes two types of information from the score in order to produce the desired piece of music. The spatial location of a note head determines which piano key to strike, and the various features of the note, such as the stem and flags determine the timing of each key stroke. We found that the medial occipital lobe, the superior temporal lobe, the rostral cingulate cortex, the putamen and the cerebellum process the melodic information, whereas the lateral occipital and the inferior temporal cortex, the left supramarginal gyrus, the left inferior and ventral frontal gyri, the caudate nucleus, and the cerebellum process the rhythmic information. Thus, we suggest a dissociate involvement of the dorsal visual stream in the spatial pitch processing and the ventral visual stream in temporal movement preparation. We propose that this dissociate organization may be important for fast learning and flexibility in motor control.
机译：在表演或感知音乐时，我们会体验旋律（空间）和节奏方面的统一。此外，运动程序理论规定运动的相对定时和序列顺序是运动程序的不变特征。尽管如此，临床和心理物理观察仍建议在生产和感知方面对这两个方面进行独立处理。在这里，我们使用功能磁共振成像从乐谱中分离出钢琴演奏过程中处理旋律和节奏方面的大脑区域。此行为要求钢琴家从乐谱中解码两种类型的信息，以便产生所需的音乐。音符头的空间位置确定要敲击哪个钢琴键，并且音符的各种特征（例如杆和标志）确定每个键击的时间。我们发现枕骨内侧叶，颞上叶，延髓扣带皮层，壳壳和小脑处理旋律信息，而枕骨外侧和颞下皮层，左上颌上回，左下腹和前额回，尾状核和小脑处理节律信息。因此，我们建议在空间俯仰处理中背侧视觉流与颞侧运动准备中腹侧视觉流的分离关系。我们建议这种分离的组织对于快速学习和运动控制的灵活性可能很重要。

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