Intermittent control explains human motor remnant without additive noise

Mamma, A., Gollee, H. , Gawthrop, P. and Loram, I. (2011) Intermittent control explains human motor remnant without additive noise. In: 19th Mediterranean Conference on Control and Automation, Corfu, Greece, 20-23 Jun 2011, pp. 558-563. (doi: 10.1109/MED.2011.5983113)

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Early work on modelling the human motion control system showed that only a part of the corresponding motion signals could be described in terms of a deterministic linear continuous-time model of the human control system. It was suggested that the unexplained part, called the remnant, could be modelled by adding a noise signal with a carefully chosen frequency spectrum. Intermittent control provides an alternative description of the human controller which includes a sampling mechanism. This paper suggests that the remnant can be explained by assuming that this sampling mechanism is not uniform; the addition of a noise signal is not required using this assumption. The approach of this paper is to compare the remnant frequency spectrum derived from experimental data with that from equivalent simulated data using each of the two models of the human controller in turn. It is found that both of the simulated models give similar remnant spectra to that of the experimental data. Further work is required to show which of the two models provides the best physiological explanation of remnant.

Item Type:Conference Proceedings
Glasgow Author(s) Enlighten ID:Gollee, Dr Henrik and Gawthrop, Professor Peter
Authors: Mamma, A., Gollee, H., Gawthrop, P., and Loram, I.
College/School:College of Science and Engineering > School of Engineering > Biomedical Engineering

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
476761Intermittent predictive control of man and machineHenrik GolleeEngineering & Physical Sciences Research Council (EPSRC)EP/F069022/1ENG - BIOMEDICAL ENGINEERING