SD法による心理計測および近赤外分光法による生理計測にもとづく打楽器音楽の感性評価

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「2007日本感性工学会賞技術賞」受賞論文In modern societies, people feel much psychological stress and require ways to relieve their stress. There is the music therapy by music appreciations as one of the ways. However, there are few research reports objectively describing a relationship between the effectiveness of music appreciation and the characteristics of the music. To clarify the relationship scientifically, it is very important to obtain subjective evaluations of the music through the psychological measurements and objective evaluations of the brain activity through the physiological measurements.This paper describes Kansei evaluations of percussion music based on psychological measurements by SD method and physiological measurements by NIRS (near-infrared spectroscopy). First, we classify the percussion instruments into two types such as the idiophone and the membranophone and describe the characteristics of them. Secondly, we conduct a Kansei evaluation survey by SD method and show the six kinds of Kansei adjectives distributed on Soft-Warm factor space. Thirdly, we measure oxidized hemoglobin (oxyHb) of the frontal lobe using NIRS and propose a signal processing method for NIRS data. Finally, we construct qualitative models of changes of oxyHb for the six kinds of Kansei adjectives and clarifies the relationship between the subjectivity of Kansei and the brain activities.