Alpha band modulation caused by selective attention to music enables EEG classification
Alpha band modulation caused by selective attention to music enables EEG classification
复制标题
DOI：
10.1007/s11571-023-09955-x
复制
发表时间：
2023-04-07
影响因子：
3.7
通讯作者：
Shiraki，Yoshifumi
中科院分区：
文献类型：
--
作者：
Mizokuchi，Kana;Tanaka，Toshihisa;Shiraki，Yoshifumi
人类能够在多种声音存在的情况下选择性地注意音乐或演讲。有研究表明，在语音领域，选择性注意增强了语音包络和脑电图（EEG）之间的交叉相关性，同时也影响了alpha带的空间调制。然而，当同时演奏多首乐曲时，目前还不清楚选择性注意如何影响神经夹带和空间调制。在本文中，我们假设，夹带出席的音乐不同，无人值守的音乐和空间调制的α带发生在一起的注意。我们进行了实验，在实验中，我们向15名参与者提供了音乐摘录，每个人同时听两个摘录，但注意其中一个。结果表明，与语音相比，无注意旋律的脑电信号与包络线之间的互相关函数有一个更显著的峰值。此外，阿尔法波段的空间调制被发现与数据驱动的方法称为共同的空间模式的方法。分类的EEG信号与支持向量机识别出席的旋律，并实现了100%的准确度为11的15名参与者。这些结果表明，选择性注意音乐抑制夹带的旋律和空间调制的α带发生在一起的注意。据我们所知，这是第一份报告，检测参加音乐组成的几种类型的音乐音符，只有脑电图。
Humans are able to pay selective attention to music or speech in the presence of multiple sounds. It has been reported that in the speech domain, selective attention enhances the cross-correlation between the envelope of speech and electroencephalogram (EEG) while also affecting the spatial modulation of the alpha band. However, when multiple music pieces are performed at the same time, it is unclear how selective attention affects neural entrainment and spatial modulation. In this paper, we hypothesized that the entrainment to the attended music differs from that to the unattended music and that spatial modulation in the alpha band occurs in conjunction with attention. We conducted experiments in which we presented musical excerpts to 15 participants, each listening to two excerpts simultaneously but paying attention to one of the two. The results showed that the cross-correlation function between the EEG signal and the envelope of the unattended melody had a more prominent peak than that of the attended melody, contrary to the findings for speech. In addition, the spatial modulation in the alpha band was found with a data-driven approach called the common spatial pattern method. Classification of the EEG signal with a support vector machine identified attended melodies and achieved an accuracy of 100% for 11 of the 15 participants. These results suggest that selective attention to music suppresses entrainment to the melody and that spatial modulation of the alpha band occurs in conjunction with attention. To the best of our knowledge, this is the first report to detect attended music consisting of several types of music notes only with EEG.