Optimal control mechanisms in human arm reaching movements

Yu Jiang, Zhong Ping Jiang, Ning Qian

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, the continuous-time optimal stationary control theory is employed to model the human motor control system in the presence of signal-dependent noise. The control scheme is based on Phillis's earlier work [36], and is simulated and compared with human data. The control model is compatible with some important observations, such as the asymmetry of the velocity profiles and the overshoot phenomenon. The infinite-horizon optimal control model advocated here differs from previous methods in not requiring a priori knowledge of a finite stopping time, but focuses on minimization of the variance in steady state. It is hypothesized that selecting appropriate weighting matrices in the cost function plays a key role in planning arm movement trajectories in the central nervous system, while the stopping time is not necessary to be known in planning movements.

Original languageEnglish (US)
Title of host publicationProceedings of the 30th Chinese Control Conference, CCC 2011
Pages1377-1382
Number of pages6
StatePublished - Sep 27 2011
Event30th Chinese Control Conference, CCC 2011 - Yantai, China
Duration: Jul 22 2011Jul 24 2011

Publication series

NameProceedings of the 30th Chinese Control Conference, CCC 2011

Other

Other30th Chinese Control Conference, CCC 2011
CountryChina
CityYantai
Period7/22/117/24/11

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Keywords

  • Biological Systems
  • Optimal Control
  • Signal-Dependent Noise
  • Stochastic Systems

ASJC Scopus subject areas

  • Control and Systems Engineering

Cite this

Jiang, Y., Jiang, Z. P., & Qian, N. (2011). Optimal control mechanisms in human arm reaching movements. In Proceedings of the 30th Chinese Control Conference, CCC 2011 (pp. 1377-1382). [6000899] (Proceedings of the 30th Chinese Control Conference, CCC 2011).