Optimal Control of a Hybrid Rhythmic-Discrete Task: The Bouncing Ball   Revisited

doi:10.1152/jn.00600.2009

CORC > 北京大学 > 心理与认知科学学院

	Optimal Control of a Hybrid Rhythmic-Discrete Task: The Bouncing Ball Revisited
	Ronsse, Renaud ; Wei, Kunlin ; Sternad, Dagmar
刊名	神经生理学杂志
	2010
关键词	OPTIMAL FEEDBACK-CONTROL PASSIVE STABILITY MOTOR CONTROL PATTERN GENERATORS ACTIVE CONTROL NEURAL BASIS MOVEMENTS NOISE MODEL COORDINATION
DOI	10.1152/jn.00600.2009
英文摘要	Ronsse R, Wei K, Sternad D. Optimal control of a hybrid rhythmic-discrete task: the bouncing ball revisited. J Neurophysiol 103: 2482-2493, 2010. First published February 3, 2010; doi: 10.1152/jn.00600.2009. Rhythmically bouncing a ball with a racket is a hybrid task that combines continuous rhythmic actuation of the racket with the control of discrete impact events between racket and ball. This study presents experimental data and a two-layered modeling framework that explicitly addresses the hybrid nature of control: a first discrete layer calculates the state to reach at impact and the second continuous layer smoothly drives the racket to this desired state, based on optimality principles. The testbed for this hybrid model is task performance at a range of increasingly slower tempos. When slowing the rhythm of the bouncing actions, the continuous cycles become separated into a sequence of discrete movements interspersed by dwell times and directed to achieve the desired impact. Analyses of human performance show increasing variability of performance measures with slower tempi, associated with a change in racket trajectories from approximately sinusoidal to less symmetrical velocity profiles. Matching results of model simulations give support to a hybrid control model based on optimality, and therefore suggest that optimality principles are applicable to the sensorimotor control of complex movements such as ball bouncing.; Neurosciences; Physiology; SCI(E); 12; ARTICLE; 5; 2482-2493; 103
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/395967]
专题	心理与认知科学学院
推荐引用方式 GB/T 7714	Ronsse, Renaud,Wei, Kunlin,Sternad, Dagmar. Optimal Control of a Hybrid Rhythmic-Discrete Task: The Bouncing Ball Revisited[J]. 神经生理学杂志,2010.
APA	Ronsse, Renaud,Wei, Kunlin,&Sternad, Dagmar.(2010).Optimal Control of a Hybrid Rhythmic-Discrete Task: The Bouncing Ball Revisited.神经生理学杂志.
MLA	Ronsse, Renaud,et al."Optimal Control of a Hybrid Rhythmic-Discrete Task: The Bouncing Ball Revisited".神经生理学杂志 (2010).