Sequential and biomechanical factors constrain timing and motion in tapping
until further notice
SourceJournal of Motor Behavior, 41, 2, (2009), pp. 128-138
Article / Letter to editor
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SW OZ DCC CO
Journal of Motor Behavior
SubjectAction, intention, and motor control; DI-BCB_DCC_Theme 2: Perception, Action and Control
The authors examined how timing accuracy in tapping sequences is influenced by sequential effects of preceding finger movements and biomechanical interdependencies among fingers. Skilled pianists tapped Sequences at 3 rates; in each sequence, a finger whose motion was more or less independent of other fingers' motion was preceded by a finger to which it was more or less coupled. Less independent fingers and those preceded by a more Coupled finger showed large timing errors and chance in motion because of the preceding finger's motion. Motion change correlated with shorter intertap intervals and increased with rate. Thus, timing of sequence elements is not independent of the motion trajectories that individuals use to produce them. Neither motion nor its relation to timing is invariant across rates.
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