The structural components of music perception - A functional anatomical study
The structural components of music perception - A functional anatomical study
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DOI：
10.1093/brain/120.2.229
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发表时间：
1997-02-01
期刊：
影响因子：
14.5
通讯作者：
Eustache, F
中科院分区：
文献类型：
--
作者：
Platel, H;Price, C;Eustache, F
这项工作探讨了与音乐欣赏有关的大脑结构。我们使用高分辨率PET设备（CTI 953B）和o -15标记水对6名年轻健康受试者（右撇子、法语、无音乐天赋）进行了三个任务，研究了选择性注意对音高、音色和节奏的影响；最后一项任务是研究对曲调的语义熟悉度（被认为是对音高和节奏的分散注意）。这四项任务是在相同的材料上进行的（一盘由30个随机排列的音符序列组成的磁带）。我们选择了一个范例，没有参考任务来比较注意对同一刺激的不同参数产生的激活。我们预计在每个任务中记录的激活会根据认知操作的不同而有所不同。我们发现，熟悉度、音高任务和节奏任务优先激活左半球，音色任务优先激活右半球。熟悉性任务激活了左侧额下回、Brodmann区（BA） 47和颞上回（其前部BA 22）。这些激活可能代表了对旋律表征的词汇语义访问。在音调任务中，左楔叶/楔前叶（ba18 /19）被激活。这些结果是出乎意料的，我们将其解释为反映了执行这项任务所采用的视觉心理意象策略。节奏任务激活了左下布罗卡区（BA 44/6），并延伸到邻近的脑岛，这表明该大脑区域在处理连续声音方面发挥了作用。
This work explores the cerebral structures involved in the appreciation of music. We studied six young healthy subjects (right handed, French, without musical talent), using a high resolution PET device (CTI 953B) and O-15-labelled water In three tasks, we studied the effects of selective attention to pitch, timbre and rhythm; a final task studied semantic familiarity with tunes (considered as divided attention for pitch and rhythm). These four tasks were performed on the same material (a tape consisting of 30 randomly arranged sequences of notes). We selected a paradigm, without a reference task to compare the activations produced by attention to different parameters of the same stimulus. We expected that the activations recorded during each task would differ according to the differences in cognitive operations. We found activations preferentially in the left hemisphere for familiarity, pitch tasks and rhythm, and in the right hemisphere for the timbre task. The familiarity task activated the left inferior frontal gyrus, Brodmann area (BA) 47, and superior temporal gyrus (in its anterior part BA 22). These activations presumably represent lexico-semantic access to melodic representations. in the pitch task, activations were observed in the left cuneus/precuneus (BA 18/19). These results were unexpected and we interpret them as reflecting a visual mental imagery strategy employed to carry out this task. The rhythm task activated left inferior Broca's area (BA 44/6), with extention into the neighbouring insula, suggesting a role for this cerebral region in the processing of sequential sounds.