Mechanisms of interlimb transfer in motor learning

运动学习中肢体间迁移的机制

• 批准号: 6784085
• 负责人: Jinsung Wang
• 金额: $ 4.89万
• 依托单位: PENNSYLVANIA STATE UNIVERSITY, THE
• 依托单位国家: 美国
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-01-01 至 2005-12-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6784085
• 关键词: behavioral /social science research tag; cerebral dominance; clinical research; handedness; human subject; interhemispheric transfer; learning; learning transfer; limb movement; postdoctoral investigator; psychomotor function; psychomotor tracking; short term memory

DESCRIPTION (provided by applicant): This proposal seeks to delineate the mechanisms underlying how movement information is represented by, and transferred between, the dominant and non-dominant arm controllers. Specifically, the proposed studies will determine whether information storage for the dominant and non-dominant arm systems shares the same working memory resources (Aim 1), test the hypothesis that interlimb transfer of visuomotor transformations is based on the development of an internal model of the transformations (Aim 2), and compare interlimb transfer of learning novel inertial loads to that of novel visuomotor transformations (Aim 3). These aims will be investigated by comparing the effects of initial training with one arm on subsequent performance with the other arm, in adaptation to altered visual displays of hand position and/or to novel inertial conditions. The information derived from these findings should prove essential for clinical rehabilitation applications that address motor learning in patients who must adapt to altered musculoskeletal conditions, as imposed by neural and orthopedic dysfunction. This information will be especially beneficial to those applications involving patients with unilateral damage, who are often forced to use the non-dominant arm for functional activities. Our findings on bimanual transfer of learning may lead to new insights that can help structure specific training protocols using opposite arm training to improve functioning in patients with hemiparesis.

描述（由申请人提供）：该提议试图描述运动信息如何由优势臂和非优势臂控制器表示以及在优势臂和非优势臂控制器之间传递的机制。具体而言，拟议的研究将确定是否优势和非优势臂系统的信息存储共享相同的工作记忆资源（目标1），测试的假设，即肢体间转移的视觉转换是基于内部模型的发展的转换（目标2），并比较肢体间转移的学习新的惯性负载的新的视觉转换（目标3）。这些目标将进行调查，通过比较的影响，初步培训与一只手臂上的后续性能与其他手臂，在适应改变视觉显示的手的位置和/或新的惯性条件。从这些发现中获得的信息应该证明是必不可少的临床康复应用，解决运动学习的患者谁必须适应改变肌肉骨骼条件，神经和骨科功能障碍。这些信息将特别有利于涉及单侧损伤患者的应用，这些患者通常被迫使用非优势臂进行功能活动。我们对双手学习转移的研究结果可能会带来新的见解，可以帮助构建特定的训练方案，使用对侧臂训练来改善轻偏瘫患者的功能。