Music Lexical Networks The Cortical Organization of Music Recognition
Music Lexical Networks The Cortical Organization of Music Recognition
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DOI：
10.1111/j.1749-6632.2009.04557.x
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发表时间：
2009-01-01
期刊：
影响因子：
--
通讯作者：
Tillmann, Barbara
中科院分区：
文献类型：
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作者：
Peretz, Isabelle;Gosselin, Nathalie;Tillmann, Barbara
对熟悉的曲调的成功识别取决于在存储系统中发生的选择过程，该过程包含一个在一个人一生中暴露在某个特定音乐短语中的所有表示。我们将此记忆系统称为音乐词典。该研究的目的是确定其神经相关性。当学生听取熟悉的音乐主题，不熟悉的音乐和随机音调时，扫描了几乎没有音乐训练的学生的大脑。熟悉的主题是从参与者众所周知的乐器作品中选择的。陌生的音乐是熟悉主题的逆行版本，参与者不认识。随机序列包含相同的音乐音调，但随机顺序。所有刺激均已合成并用钢琴的声音播放，从而使低水平的声学因子在条件上相似。对熟悉音乐与陌生音乐的脑反应的比较揭示了右颞孔（STS）中的局灶性激活。 Plailly等人先前研究中获得的数据的重新分析。还指向STS，是音乐记忆中涉及的关键区域。神经影像数据进一步表明，通过在平面颞叶中显示左激活，补充运动区域（SMA）和下额回，这些听觉记忆与动作（唱歌）紧密结合（唱歌）。这样的音乐识别的皮质组织类似于希科克和波佩尔提出的语音处理的背面模型。
Successful recognition of a familiar tune depends on a selection procedure that takes place in a memory system that contains all the representations of the specific musical phrases to which one has been exposed during one's lifetime. We refer to this memory system as the musical lexicon. The goal of the study was to identify its neural correlates. The brains of students with little musical training were scanned with functional magnetic resonance imaging (fMRI) while the student listened to familiar musical themes, unfamiliar music, and random tones. The familiar themes were selected from instrumental pieces well-known to the participants; the unfamiliar music was the retrograde version of the familiar themes, which the participants did not recognize; and the random sequences contained the same musical tones but in a random order. All stimuli were synthesized and played with the sound of a piano, thereby keeping low-level acoustical factors similar across conditions. The comparison of cerebral responses to familiar versus unfamiliar music reveals focal activation in the right superior temporal sulcus (STS). Re-analysis of the data obtained in a previous study by Plailly et al. also points to the STS as the critical region involved in musical memories. The neuroimaging data further suggest that these auditory memories are tightly coupled with action (singing), by showing left activation in the planum temporale, in the supplementary motor area (SMA), and in the inferior frontal gyrus. Such a cortical organization of music recognition is analogous to the dorsal stream model of speech processing proposed by Hickok and Poeppel.