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首页> 外文期刊>Neuropsychologia >Neural differences between the processing of musical meaning conveyed by direction of pitch change and natural music in congenital amusia
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Neural differences between the processing of musical meaning conveyed by direction of pitch change and natural music in congenital amusia

机译：通过在先天性群体中的音高变化方向和自然音乐传达的音乐意义之间的神经差异

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摘要

Music is a unique communication system for human beings. Iconic musical meaning is one dimension of musical meaning, which emerges from musical information resembling sounds of objects, qualities of objects, or qualities of abstract concepts. The present study investigated whether congenital amusia, a disorder of musical pitch perception, impacts the processing of iconic musical meaning. With a cross-modal semantic priming paradigm, target images were primed by semantically congruent or incongruent musical excerpts, which were characterized by direction (upward or downward) of pitch change (Experiment 1), or were selected from natural music (Experiment 2). Twelve Mandarin-speaking amusics and 12 controls performed a recognition (implicit) and a semantic congruency judgment (explicit) task while their EEG waveforms were recorded. Unlike controls, amusics failed to elicit an N400 effect when musical meaning was represented by direction of pitch change, regardless of the nature of the tasks (implicit versus explicit). However, the N400 effect in response to musical meaning in natural musical excerpts was observed for both the groups in both types of tasks. These results indicate that amusics are able to process iconic musical meaning through multiple acoustic cues in natural musical excerpts, but not through the direction of pitch change. This is the first study to investigate the processing of musical meaning in congenital amusia, providing evidence in support of the "melodic contour deafness hypothesis" with regard to iconic musical meaning processing in this disorder.
机译：音乐是人类的独特通信系统。标志性的音乐含义是音乐意义的一个维度，从类似物体，物体的品质或抽象概念的品质的音乐信息出现。本研究调查了先天性肿瘤，剧情障碍感知，影响了标志性音乐意义的加工。利用跨模型语义灌注范式，目标图像通过语义一致或不一致的音乐摘录引发，其特征在于俯仰变化（实验1）的方向（向上或向下），或者选自自然音乐（实验2）。 12个普通话讲话和12个控件在记录了其EEG波形时执行了识别（隐式）和语义一致性判断（显式）任务。与控制不同，当音乐含义通过音高变化方向表示时，Amusics未能引发N400效果，无论任务的性质如何（隐含与显式）。然而，对于两种任务中的两组，观察到响应自然音乐摘录中的音乐含义的N400效应。这些结果表明，随着天然音乐摘录中的多个声学线索，可以通过多个声学线索来处理标志性的音乐意义，而不是通过音高变化的方向。这是研究先天性amusia中音乐含义的第一项研究，提供有关在该疾病中的标志性音乐意义加工的“旋律轮廓耳聋假设”的证据。

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