音楽鑑賞中におけるアルファ帯域成分と心拍変動の関係

概要

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Background : Alpha activity in electroencephalogram (EEC) reflects psychophysical ralaxation. Heart rate variability (HRV) reflects autonomic nervous system activity. Purposes : We now attempted to clarify the relationship between the alpha activity and the HRV in listening "healing music". Methods : The EEG from Pz (international 10-20 System) and the electro cardiogram (ECG) of a limb lead were simultaneously recorded in 7 healthy subjects listening to "healing music" for 10 minutes. In every 40 seconds, the alpha activity was calculated by the power spectral analysis of the EEG waveform. At the same time, SDNN, CVNN, pNN50, and MSD, which were the indices to quantify the HRV, were calculated by time domain analysis of R-R intervals of ECG. We calculated the concordance between the alpha activity and the 4 kinds of indices for HRV. Results : The concordance of SDNN, CVNN, pNN50 and MSD was 68.6%, 90.5%, 59.0% and 68.6%, respectively. Conclusions : The concordance between the alpha activity and the 4 kinds of indices for HRV was high. The indices that reflect the HRV, especially CVNN, may become another index that reflects psychophysical relaxation in listening to "healing music".
香川県立保健医療大学の論文