Open AccessINFLUENCE OF MUSIC SIGNAL ON THE CHANGES IN BRAIN COGNITION ACTIVITY AND ITS NONLINEAR DYNAMIC SYSTEM
Author(s) -
Ye Bai,
Abdullah Al-Barakati
Publication year - 2022
Publication title -
fractals
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.654
H-Index - 44
eISSN - 1793-6543
pISSN - 0218-348X
DOI - 10.1142/s0218348x22400813
Subject(s) - electroencephalography , cognition , psychology , correlation dimension , lyapunov exponent , brain activity and meditation , brain stimulation , correlation , coherence (philosophical gambling strategy) , cognitive psychology , affect (linguistics) , stimulation , chaotic , neuroscience , mathematics , artificial intelligence , computer science , communication , fractal dimension , statistics , mathematical analysis , geometry , fractal
The nonlinear dynamic characteristics of human brain cognition and music stimulation are introduced based on the negative emotions of college students to explore the influence of music stimulation on human brain cognition activities and analyze the nonlinear dynamic characteristics of electroencephalogram (EEG) signals. First, the correlation between EEG signals and human brain cognition, as well as the nonlinear dynamics of cognition, are explained. The average correlation dimension and the maximum value of the Lyapunov exponent are selected to characterize the nonlinear dynamic characteristics of EEG signals. Second, the power spectrum and EEG coherence are considered, and an emotion assessment algorithm is proposed. Finally, music stimulation is introduced, and its role in adjusting college students’ negative emotions is discussed. Results demonstrate significant differences in the average correlation dimension and the maximum value of the Lyapunov component of the participants in different cognition states under normal physiological conditions. The cognition function state shows chaotic behaviors, explaining the nonlinear dynamic characteristics of EEG signals. After music stimulation, a significant increase in EEG relative power is mostly located in the frontal and temporal regions of the brain. The EEG coherence in the same brain region shows growth changes. After the intervention of music stimulation, the emotion assessment scores of the self-rating anxiety scale, the positive and negative affect schedule, and the self-rating depression scale are reduced, and the entire changing process presents statistical significance. In conclusion, music stimulation intervention can affect human brain cognition activity, playing a positive role in emotion regulation.