Sensory and perceptual contributions to preparation and execution of goal-directed action

感官和知觉对目标导向行动的准备和执行的贡献

• 批准号: 183744-2009
• 负责人: Chua, Romeo
• 金额: $ 2.19万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=522950
• 关键词: Sensory; perceptual; contributions; preparation; execution

The long-term and broad goal of my research program is to better understand the mechanisms underlying sensory and perceptual contributions to the preparation and execution of goal-directed movements. Over the past several years, one research theme has been directed toward issues pertaining to the contributions of vision to conscious perception and control of visually-guided movement. Our visual system serves a dual purpose. First, it allows us to consciously perceive our surroundings (e.g., recognize our cup of coffee). Second, it can guide our interaction with our environment (e.g., reach for our cup of coffee). The short-term goals of this research theme on vision over the next 5 years are to examine the properties of visual-motor processing in the absence of conscious awareness. We will investigate the extent to which unconscious processes can influence motor preparation and real-time control of visually-guided movements. A second research theme on vision has been directed toward issues pertaining to the interactions between visual input and information from the vestibular system (a system that provides us with balance and navigation signals) during goal-directed movements. The short-term goals of this research theme over the next grant period are to study how visual input is combined with navigational signals from our vestibular system to guide locomotion and reaching movements. We will investigate how the weighting between visual and vestibular signals change as a function of the reliability and accuracy of these signals during the preparation and execution of purposeful movements.

我的研究计划的长期和广泛的目标是更好地理解感官和知觉对目标导向运动的准备和执行的潜在作用机制。在过去的几年里，一个研究主题是关于视觉对意识感知的贡献和对视觉引导运动的控制的问题。我们的视觉系统有双重作用。首先，它允许我们有意识地感知周围环境(例如，识别我们的咖啡)。其次，它可以引导我们与环境的互动(例如，伸手去拿一杯咖啡)。这项关于视觉的研究主题在未来5年的短期目标是研究在没有意识意识的情况下视觉-运动加工的特性。我们将调查无意识过程对运动准备和视觉引导运动的实时控制的影响程度。关于视觉的第二个研究主题是关于视觉输入与前庭系统(为我们提供平衡和导航信号的系统)在目标定向运动期间的信息之间的相互作用的问题。这项研究主题在下一个授权期的短期目标是研究视觉输入如何与前庭系统的导航信号相结合，以指导运动和伸展运动。我们将研究在有目的的动作的准备和执行过程中，视觉和前庭信号之间的权重如何随着这些信号的可靠性和准确性而变化。