Coordination Dynamics

协调动力学

• 批准号: 0423036
• 负责人: Michael Turvey
• 金额: $ 30万
• 依托单位: University of Connecticut
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-01 至 2008-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0423036&HistoricalAwards=false
• 关键词: Coordination; Dynamics

The proposal is directed at the fundamental human ability to synchronize rhythmic limb movements, for example, a bimanual coordination in which the two hands move together cyclically in phase or out of phase. In particular, the proposal is directed at how the stability and variability of this basic rhythmic synergy is affected by unrelated cognitive activity (e.g., conversing, problem solving, and mental arithmetic) that occurs in parallel with the synergy. Experiments of several types are planned involving bimanual pendulum-like oscillations. In the bimanual tasks the phasing of components, the frequency at which they oscillate together, and the frequency at which they oscillate alone will be manipulated. The difficulty, variety, and randomness of ongoing cognitive activity will also be manipulated. Three-space motion analyzers will be used to collect the movement data and methods of nonlinear dynamics will be used to address them. The proposed experiments should advance understanding of how behavior adapts to conditions of shared attention. In particular they will contribute to a theory of behavioral re-organization to be developed within the framework of the mathematics and physics of self-organizing systems. Specific applications of the expected results include disorders of movement and volitional action. Comprehending how cognitive activity affects movement stability is relevant to the development of movement rehabilitation regimens. Enhanced understanding of cognitive sources of rhythmic variance is relevant to the study of Parkinson's, Huntington's, and related disorders involving sequencing and timing. The nonlinear analysis techniques to be developed in the proposal (yielding diagnostic quantitative and graphical measures) will gain in importance to clinicians as the technology for analyzing complicated movement patterns becomes more commonplace.

这项提议针对的是人类同步肢体有节奏运动的基本能力，例如，两只手周期性地同步或不同步运动的双手协调。特别是，该提案针对的是这种基本节奏协同的稳定性和可变性如何受到与协同平行发生的无关认知活动(例如，交谈、解决问题和心算)的影响。计划进行几种类型的实验，包括双手摆类摆动。在双工任务中，部件的相位、它们一起振荡的频率以及它们单独振荡的频率都将被操纵。正在进行的认知活动的难度、多样性和随机性也将被操纵。将使用三空间运动分析器收集运动数据，并将使用非线性动力学方法来解决这些问题。拟议中的实验应该会促进人们对行为如何适应共同关注条件的理解。特别是，它们将有助于在自组织系统的数学和物理学框架内发展行为重组理论。预期结果的具体应用包括运动障碍和意志行为障碍。了解认知活动是如何影响运动稳定性的，对于运动康复养生法的发展具有重要意义。增强对节律变异的认知来源的理解与帕金森氏症、亨廷顿氏症以及涉及序列和计时的相关疾病的研究有关。随着用于分析复杂运动模式的技术变得越来越普遍，建议中开发的非线性分析技术(产生诊断、定量和图形测量)将对临床医生变得越来越重要。