Visual Regulation of Goal Directed Movement

目标定向运动的视觉调节

• 批准号: RGPIN-2016-06520
• 负责人: Lyons, James
• 金额: $ 2.04万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=630782
• 关键词: Visual; Regulation; Goal; Directed; Movement

Since 2009, my lab has examined the role of practice and strategic behaviours in optimizing the speed, accuracy and energy expenditure of goal-directed reaching and aiming movements. From this work we have developed a model of motor control that posits two "component" modes of online control wherein active online control occurs much earlier than previously thought and rapidly unfolds as a function of a rapid and continuous comparison of dynamic information about limb direction/velocity to an internal representation of the expected sensory consequences of the movement. Since publication, the paper describing this model has been extremely influential averaging over 20 citations per year. The current proposal builds directly upon my research program, predicated upon developing a more complete understanding of how vision regulates human movement, by proposing 11 new studies that will allow us to continue to extend our multiple process model in new directions beyond aiming movements. Series 1 experiments will continue or our work in the visual control of limb movements by conducting experiments designed to further dissociate the visual and proprioceptive regulation of reaching and aiming. Our goal here is to link the representations associated with preplanned voluntary control to those that are automatically engaged when performing in complex environments. Series 2 experiments will begin to assess the predications of our model at more micro and macro levels. Here we propose to investigate the sensorimotor control processes that are integrated during eye-hand coordination tasks by extending our aiming work to the smaller scale interactions between multiple, secondary effector systems that contribute to larger scale motor behaviours. Series 2 experiments focus on the more macro concepts of the visual regulation of movement. The purpose of these studies is to examine how the visual consequences of action are represented at various levels in the kinematic chain during larger scale motor behaviours by exploring how the Central Nervous System coordinates the upper and lower limbs during full-body locomotion through space. Until now our research, and the influential model derived from it, has revolved around a thorough exploration of individual and task constraints associated with manual aiming movements. The proposed experiments will significantly broaden the context of the predictions of this model into human movement across other domains. These parallel streams of research, linked by a common theme of the visual regulation of movement, will provide novel and important extensions to our long term research program. This more comprehensive understanding of the nature of movement in typically developing populations has the additional potential benefits of providing insights into future studies as to how this knowledge can be applied to Canadian populations with movement disorders.

自 2009 年以来，我的实验室一直在研究实践和策略行为在优化目标导向的到达和瞄准运动的速度、准确性和能量消耗方面的作用。从这项工作中，我们开发了一种运动控制模型，该模型提出了在线控制的两种“组件”模式，其中主动在线控制发生得比以前想象的要早得多，并且作为有关肢体方向/速度的动态信息与运动的预期感官结果的内部表示的快速和连续比较的函数而迅速展开。自发表以来，描述该模型的论文极具影响力，平均每年被引用次数超过 20 次。目前的提案直接建立在我的研究计划的基础上，以更全面地了解视觉如何调节人类运动为基础，提出了 11 项新研究，这些研究将使我们能够继续在瞄准运动之外的新方向上扩展我们的多过程模型。系列 1 实验将继续我们在肢体运动视觉控制方面的工作，进行旨在进一步分离伸手和瞄准的视觉和本体感觉调节的实验。我们的目标是将与预先计划的自愿控制相关的表征与在复杂环境中执行时自动参与的表征联系起来。系列 2 实验将开始在更微观和宏观层面评估我们模型的预测。在这里，我们建议通过将我们的瞄准工作扩展到有助于更大规模运动行为的多个次级效应器系统之间的更小规模相互作用，来研究在眼手协调任务中集成的感觉运动控制过程。系列 2 实验侧重于运动视觉调节的更宏观概念。这些研究的目的是通过探索中枢神经系统在全身空间运动过程中如何协调上肢和下肢，来检查在更大规模的运动行为中，动作的视觉后果如何在运动链的各个层面上表示。到目前为止，我们的研究以及从中得出的有影响力的模型一直围绕着对与手动瞄准运动相关的个人和任务限制的彻底探索。所提出的实验将显着将该模型的预测范围扩展到其他领域的人类运动。这些并行的研究流由运动视觉调节的共同主题联系在一起，将为我们的长期研究计划提供新颖且重要的扩展。对典型发展中人群运动本质的更全面了解具有额外的潜在好处，可以为未来的研究提供见解，了解如何将这些知识应用于患有运动障碍的加拿大人群。