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Secret of fine motor control of skilled musiciansNon-linear time series analysis of skilled musicians 
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Professional musicians make fascinating music through skilled motor control, characterized by fast and less variable movements. It is not clear what mechanisms underlie their performance. This study explored the secret of this skilled movement using non-linear time series analysis on the fastest finger movements of musicians. Fast and less variable movement can be achieved through two possible mechanisms: stabilizing the movement and reducing movement variability. The non-linear analysis method, recurrence quantification analysis, was applied to natural performance movements and revealed for the first time that musicians have a high ability to stabilize their movements. This finding indicates that variability is not inherently small in musicians, but rather, they are superior in stabilizing. The ability to stabilize the movements can be an indicator of acquiring skillful body movement control. Based on this finding, we aim to clarify human skillfulness and malfunction and establish a method to support the development of skillfulness.
[1] K. Honda, S. Fujii, “Tapping performance of professional and amateur darbuka players,” Frontiers in Psychology, Vol. 13, pp. 1-10, 2022.
[2] K. Honda, S. Fujii, “Bimanual finger coordination in professional and amateur darbuka players,” Experimental Brain Research, Vol. 241, pp. 2645-2654, 2023.
Kazuaki Honda, Kashino Diverse Brain Research Laboratory