Control of multi-joint arm movements for the manipulation of touch in keystroke by expert pianists.

BMC Neuroscience
Shinichi FuruyaHiroshi Kinoshita

Abstract

Production of a variety of finger-key touches in the piano is essential for expressive musical performance. However, it remains unknown how expert pianists control multi-joint finger and arm movements for manipulating the touch. The present study investigated differences in kinematics and kinetics of the upper-limb movements while expert pianists were depressing a key with two different touches: pressed and struck. The former starts key-depression with the finger-tip contacting the key, whereas the latter involves preparatory arm-lift before striking the key. To determine the effect of individual muscular torque (MUS) as well as non-muscular torques on joint acceleration, we performed a series of inverse and forward dynamics computations. The pressed touch showed smaller elbow extension velocity, and larger shoulder and finger flexion velocities during key-depression compared with the struck touch. The former touch also showed smaller elbow extension acceleration directly attributed to the shoulder MUS. In contrast, the shoulder flexion acceleration induced by elbow and wrist MUS was greater for the pressed touch than the struck touch. Towards the goal of producing the target finger-key contact dynamics, the pressed and struck ...Continue Reading

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Citations

Nov 7, 2014·The Journal of the Acoustical Society of America·Werner GoeblIchiro Fujinaga
Jun 18, 2015·Frontiers in Psychology·Jennifer MacRitchie, Andrew P McPherson
Oct 28, 2015·Scientific Reports·Shinichi FuruyaHiroshi Kinoshita
Mar 6, 2017·Experimental Brain Research·Takanori Oku, Shinichi Furuya
Nov 21, 2018·Frontiers in Psychology·Barbara James
Sep 6, 2020·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Valentin DegraveMickaël Begon

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