研究発表

慶應SFCは設立以来、メディアアートやコンピュータミュージックなど、テクノロジーを駆使した音楽文化の創生に寄与してきた。SFC設立から30年が経過した今、「SDGsの次の社会」を展望し、我々はどのような音楽文化を創造すべきなのか。本セッションでは、音楽科学研究者（Scientist）、音楽学者（Musicologist）、ミュージシャン(Musicians)、音楽企業人（Music Industry）一同を招集し、「音楽の未来 ―The Future of Music― 」について議論する。

運動スキル学習への力学系アプローチの一例として、熟練ドラム奏者と非ドラム奏者の両手協調パターンを非線形力学系モデリングを用いて記述する取り組みについて発表した。

到達把持と物体移動の系列運動における運動学的特性（到達運動最大速度、物体移動最大速度、指間距離）について解析し、研究報告を行った。

"Moving to the beat" has been shown to improve rhythm perception, such as tapping to the beat improves the perception of timing [Manning & Schultz, 2013], and moving bodies affects how we perceive the meter [Phillips-Silver, Trainor, 2005; 2007; 2008]. While the previous studies have focused on the effect of voluntary movement on rhythm perception, the effect of non-voluntary passive movement on rhythm perception has not been clarified. In this study, we used the electrical muscle stimulation (EMS) to investigate whether a non-voluntary passive body movement improves our rhythm perception. Nine individuals (five male, age = 21~29) participated in this study. The Beat Interval Test in the Harvard Beat Assessment Test [Fujii & Schlaug, 2013] was used to assess the perception threshold of beat interval changes. We electrically stimulated the finger flexor muscles of the participants and they were asked to discriminate whether the inter-stimulus interval is getting faster or slower in the test. To compare if passive body movements affect the beat interval perception, we used the EMS in two conditions; one elicited the finger movements with the EMS (i.e., passive movement condition) and the other stimulated the muscles while constraining the finger-joint movement (i.e., non-movement condition). We performed Wilcoxon Signed Rank test to compare the perception thresholds between the two conditions. As a result, we found that the participants showed better beat interval discrimination in the passive movement condition compared to the non-movement condition (p = 0.018). This result suggests that not only voluntary movement but also non-voluntary passive body movement may improve rhythm perception. By RPPW, we plan to collect additional data to further investigate why the non-voluntary passive movement may improve the beat interval perception.