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Midpoint perturbation response in haptically-guided movements

Fortunov, D. I., Hwang, F. and Harwin, W. S. (2006) Midpoint perturbation response in haptically-guided movements. In: 2006 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Vols 1-15. IEEE, New York, pp. 5571-5574. ISBN 9781424400324

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To link to this item DOI: 10.1109/IEMBS.2006.260610


This study investigates the human response to impulse perturbations at the midpoint of a haptically-guided straight-line point-to-point movement. Such perturbation response may be used as an assessment tool during robot-mediated neuro-rehabilitation therapy. Subjects show variety in their perturbation responses. Movements with a lower perturbation displacement exhibit high frequency oscillations, indicative of increased joint stiffness. Equally, movements with a high perturbation displacement exhibit lower frequency oscillations with higher amplitude and a longer settling time. Some subjects show unexpected transients during the perturbation impulse, which may be caused by complex joint interactions in the hand and arm.

Item Type:Book or Report Section
Divisions:Faculty of Life Sciences > School of Biological Sciences > Department of Bio-Engineering
ID Code:14383
Additional Information:Proceedings Paper 28th Annual International Conference of the IEEE-Engineering-in-Medicine-and-Biology-Society AUG 30-SEP 03, 2006 New York, NY

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