Pointing with the ankle: the speed-accuracy trade-off
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221_2013_3773_ReferencePDF.pdf
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Author(s)
Michmizos, Konstantinos
Krebs, Hermano Igo
Date Issued
November 2013
Journal
Experimental Brain Research
Publisher
Springer Berlin Heidelberg
Citation
Michmizos, Konstantinos P., and Hermano Igo Krebs. “Pointing with the Ankle: The Speed-Accuracy Trade-Off.” Experimental Brain Research 232, no. 2 (November 23, 2013): 647–657.
Version
Author's final manuscript
Abstract
This study investigated the trade-off between speed and accuracy in pointing movements with the ankle during goal-directed movements in dorsal–plantar (DP) and inversion–eversion (IE). Nine subjects completed a series of discrete pointing movements with the ankle between spatial targets of varying difficulty. Six different target sets were presented, with a range of task difficulty between 2.2 and 3.8 bits of information. Our results demonstrated that for visually evoked, visually guided discrete DP and IE ankle pointing movements, performance can be described by a linear function, as predicted by Fitts’ law. These results support our ongoing effort to develop an adaptive algorithm employing the speed-accuracy trade-off concept to control our pediatric anklebot while delivering therapy for children with cerebral palsy.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
McGovern Institute for Brain Research at MIT
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1007/s00221-013-3773-0
