Title :
Self-similarity in a human balancing task
Author :
Cabrera, Juan Luis ; Milton, John
Author_Institution :
Dept. of Neurology, Univ. of Chicago, IL, USA
Abstract :
High speed motion analysis techniques in 3-D are used to demonstrate that the magnitude of the corrective forces made by a finger of a trained individual during stick balancing are self-similar and in particular are described by a truncated Levy flight (TLF). The presence of scaling in a balancing task requires that current theories of motor control be re-evaluated.
Keywords :
biocontrol; biomechanics; force control; motion measurement; biological time series; corrective forces magnitude; frequency domain methods; human balancing task; motor control theories; self-similarity; stick balancing; trained individual; truncated Levy flight; Acceleration; Charge-coupled image sensors; Fingers; Fluctuations; Frequency; Humans; Motion analysis; Motor drives; Nervous system; Sampling methods;
Conference_Titel :
Engineering in Medicine and Biology, 2002. 24th Annual Conference and the Annual Fall Meeting of the Biomedical Engineering Society EMBS/BMES Conference, 2002. Proceedings of the Second Joint
Print_ISBN :
0-7803-7612-9
DOI :
10.1109/IEMBS.2002.1134332
