Ohnishi T, Matsuda H, Asada T, Aruga M, Hirakata M, Nishikawa M, Katoh A, Imabayashi E
Department of Radiology and Psychiatry, National Center Hospital of Mental, Nervous and Muscular Disorders, National Center of Neurology and Psychiatry, Kodaira City, Tokyo 187-8551, Japan.
Cereb Cortex. 2001 Aug;11(8):754-60. doi: 10.1093/cercor/11.8.754.
The present study used functional magnetic resonance to examine the cerebral activity pattern associated with musical perception in musicians and non-musicians. Musicians showed left dominant secondary auditory areas in the temporal cortex and the left posterior dorsolateral prefrontal cortex during a passive music listening task, whereas non-musicians demonstrated right dominant secondary auditory areas during the same task. A significant difference in the degree of activation between musicians and non-musicians was noted in the bilateral planum temporale and the left posterior dorsolateral prefrontal cortex. The degree of activation of the left planum temporale correlated well with the age at which the person had begun musical training. Furthermore, the degree of activation in the left posterior dorsolateral prefrontal cortex and the left planum temporale correlated significantly with absolute pitch ability. The results indicated distinct neural activity in the auditory association areas and the prefrontal cortex of trained musicians. We suggest that such activity is associated with absolute pitch ability and the use-dependent functional reorganization produced by the early commencement of long-term training.
本研究使用功能磁共振成像来检查音乐家和非音乐家与音乐感知相关的大脑活动模式。在被动听音乐任务中，音乐家在颞叶皮质的左优势次级听觉区域和左后背外侧前额叶皮质表现出激活，而非音乐家在同一任务中表现出右优势次级听觉区域的激活。在双侧颞平面和左后背外侧前额叶皮质中，音乐家和非音乐家的激活程度存在显著差异。左颞平面的激活程度与个体开始音乐训练的年龄密切相关。此外，左后背外侧前额叶皮质和左颞平面的激活程度与绝对音高能力显著相关。结果表明，训练有素的音乐家的听觉联合区域和前额叶皮质存在明显的神经活动。我们认为，这种活动与绝对音高能力以及长期训练早期开始所产生的使用依赖性功能重组有关。
