Effect Evaluation of Relaxation Training Based on Nonlinear Parameters of Electroencephalogram Waves

The purpose of this study is to evaluate the effect of music relaxation and to explore the relationship among visual analog scales, behavior performance and electroencephalogram (EEG) analysis. In the experiments, subjects did mental arithmetic until felt fatigued and then relaxed by listening to classical music. In order to analyze EEG signals, two nonlinear parameters L-Z complexity and approximate entropy were calculated. It was found that different brain states had different nonlinear characteristics.