Real-time use of vision and proprioception during the different online control phases of voluntary actions

在自愿行动的不同在线控制阶段实时使用视觉和本体感觉

• 批准号: RGPIN-2015-05640
• 负责人: Tremblay, Luc
• 金额: $ 1.75万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=667093
• 关键词: Real; time; use; vision; proprioception

Limb movements bring about changes in the activity of our sensory systems. When lifting a carton of milk, receptors in the muscles help determine if the carton is as full as expected. Subsequently, moving the milk carton to pour the milk arguably relies more on vision. As such, most reaching movements can be segregated into phases. The research programme led by Dr. Tremblay will assess the extent to which the brain relies on the different senses to control the different phases of voluntary movements.***In three series of studies, information provided to the eyes and muscles will be manipulated during different portions of the movement. The limb trajectories and endpoints will be analysed to determine the contribution of both sensory modalities. In another set of studies, participants will be asked to make perceptual judgments about their endpoint accuracy, after trials where information provided to the eyes and muscles will be perturbed. Because the manipulations and perturbations will be provided at different portions of the trajectory, it will be possible to assess the contribution of sensory information from the eyes and muscles to control the different phases of voluntary movements.***Knowing how humans rely on sensory information from the eyes and the muscles during the different portions of voluntary movements is critical to build efficient training programs (e.g., sports). Establishing this fundamental knowledge is imperative before making informed decisions about the design of training and rehabilitation programs. For example, a growing proportion of the Canadian population needs sensorimotor therapy. As the case for coaching sports, rehabilitation is not always effective. In the case of unsuccessful rehabilitation, ineffective protocols incur additional health care costs, starting with caregiving services for activities of daily living. While many other practical reasons can be given to justify this research program (e.g., designing human machine interfaces), it remains rather puzzling that we know how to send a man on the moon but yet don't know how we push the launch button.**

肢体运动带来了我们的感觉系统活动的变化。提起牛奶的纸箱时，肌肉中的受体有助于确定纸箱是否如预期的那样饱满。随后，移动牛奶纸箱以倒牛奶可以说更多地依赖于视力。因此，大多数到达运动可以分为阶段。由Tremblay博士领导的研究计划将评估大脑依赖于不同感官来控制自愿运动的不同阶段的程度。将分析肢体轨迹和终点，以确定两种感觉方式的贡献。在另一项研究中，将要求参与者对其终点准确性做出感知判断，此前将对眼睛和肌肉提供信息的试验。由于将在轨迹的不同部分提供操作和扰动，因此可以评估眼睛和肌肉中的感官信息的贡献，以控制自愿运动的不同阶段。在做出有关培训和康复计划设计的明智决定之前，必须建立这种基本知识。例如，越来越多的加拿大人口需要感觉运动治疗。作为教练运动的案例，康复并不总是有效的。在康复不成功的情况下，无效的方案会产生额外的医疗保健费用，从护理服务开始用于日常生活活动。尽管可以给出许多其他实际原因来证明该研究计划合理（例如，设计人机界面），但我们仍然令人困惑，我们知道如何将一个男人送到月球上，但不知道我们如何按下启动按钮。** **