CLC number: TP274; R318
On-line Access: 2014-10-09
Received: 2014-06-06
Revision Accepted: 2014-09-11
Crosschecked: 2014-09-17
Cited: 1
Clicked: 7559
Dan Wu, Chao-yi Li, Jie Liu, Jing Lu, De-zhong Yao. Scale-free brain ensemble modulated by phase synchronization[J]. Journal of Zhejiang University Science C, 2014, 15(10): 821-831.
@article{title="Scale-free brain ensemble modulated by phase synchronization",
author="Dan Wu, Chao-yi Li, Jie Liu, Jing Lu, De-zhong Yao",
journal="Journal of Zhejiang University Science C",
volume="15",
number="10",
pages="821-831",
year="2014",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.C1400199"
}
%0 Journal Article
%T Scale-free brain ensemble modulated by phase synchronization
%A Dan Wu
%A Chao-yi Li
%A Jie Liu
%A Jing Lu
%A De-zhong Yao
%J Journal of Zhejiang University SCIENCE C
%V 15
%N 10
%P 821-831
%@ 1869-1951
%D 2014
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.C1400199
TY - JOUR
T1 - Scale-free brain ensemble modulated by phase synchronization
A1 - Dan Wu
A1 - Chao-yi Li
A1 - Jie Liu
A1 - Jing Lu
A1 - De-zhong Yao
J0 - Journal of Zhejiang University Science C
VL - 15
IS - 10
SP - 821
EP - 831
%@ 1869-1951
Y1 - 2014
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.C1400199
Abstract: To listen to brain activity as a piece of music, we proposed the scale-free brainwave music (SFBM) technology, which could translate the scalp electroencephalogram (EEG) into music notes according to the power law of both EEG and music. In the current study, this methodology was further extended to a musical ensemble of two channels. First, EEG data from two selected channels are translated into musical instrument digital interface (MIDI) sequences, where the EEG parameters modulate the pitch, duration, and volume of each musical note. The phase synchronization index of the two channels is computed by a Hilbert transform. Then the two MIDI sequences are integrated into a chorus according to the phase synchronization index. The EEG with a high synchronization index is represented by more consonant musical intervals, while the low index is expressed by inconsonant musical intervals. The brain ensemble derived from real EEG segments illustrates differences in harmony and pitch distribution during the eyes-closed and eyes-open states. Furthermore, the scale-free phenomena exist in the brainwave ensemble. Therefore, the scale-free brain ensemble modulated by phase synchronization is a new attempt to express the EEG through an auditory and musical way, and it can be used for EEG monitoring and bio-feedback.
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