By listening to music, you may feel relieved and relaxed, and your subjective feeling of fatigue may be reduced.However, the feeling of fatigue often did not match the actual degree of fatigue, and the relationship between subjective mood swings and scientific and objective fatigue was unclear.Therefore, a joint research group of Osaka City University and RIKEN simultaneously measures the cardiovascular autonomic nervous function index (heart rate variability), which is an objective index of fatigue, and subjective mood changes, and analyzes the relationship between them. I tried.

　First, from the analysis results of subjective mood data, it was found that listening to ambient music composed of piano, violin, natural sound sources, etc. greatly moves the mood in the direction of "healing", "sleepiness", and "security / relaxation". rice field.Furthermore, when we investigated the correlation between changes in autonomic nervous function before and after listening and subjective mood changes, we found that the heart rate decreased for mood changes such as "healing" and "safety / relaxation". It was found that the ratio of low frequency components (LF) to high frequency components (HF) of heart rate variability decreased for mood changes to "exhilaration".

　This result suggests that subjective mood data can predict changes in individual autonomic nervous function.
Accumulation of daily fatigue has been reported to be a risk factor for various diseases through deterioration of autonomic nervous function balance.Based on this research, it will be possible to develop technology that predicts the effect of music on the autonomic nervous function of each individual with high accuracy, and to design music production and music selection that appropriately adjusts the balance of autonomic nervous function. It is expected.

Paper information:[Frontiers in Neuroscience] Music Improves Subjective Feelings Leading to Cardiac Autonomic Nervous Modulation: A Pilot Study