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| Research article summary (published 30 Dec 2001): |
Modeling head tracking of visual targets.
Full Abstract
Control of the head involves somatosensory, vestibular, and visual feedback. The dynamics of these three feedback systems must be identified in order to gain a greater understanding of the head control system. We have completed one step in the development of a head control model by identifying the dynamics of the visual feedback system. A mathematical model of human head tracking of visual targets in the horizontal plane was fit to experimental data from seven subjects performing a visual head tracking task. The model incorporates components based on the underlying physiology of the head control system. Using optimization methods, we were able to identify neural processing delay, visual control gain, and neck viscosity parameters in each experimental subject.
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Author information
Author/s: Chen, K J (KJ); Keshner, E A (EA); Peterson, B W (BW); Hain, T C (TC);
Affiliation: Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA. kelvin(-atsign-)ieee.org
Grants: DC01125 (Agency:United States NIDCD) ; DC02072 (Agency:United States NIDCD) ; NS22490 (Agency:United States NINDS)
Journal and publication information
Publication Type: Clinical Trial; Journal Article; Research Support, U.S. Gov't, P.H.S.
Journal: Journal of vestibular research : equilibrium & orientation (J Vestib Res), published in Netherlands. (Language: eng)
Reference: 2002-; vol 12 (issue 1) : pp 25-33
Dates: Created 2003/01/07; Completed 2003/06/10; Revised 2007/11/14;
PMID: 12515889, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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