Mechanisms of interlimb transfer in motor learning

运动学习中肢体间迁移的机制

• 批准号: 6585147
• 负责人: Jinsung Wang
• 金额: $ 4.42万
• 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/6585147
• 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(申请人提供)：本提案旨在描述主要和非主要手臂控制器如何表示运动信息以及如何在它们之间传输运动信息的机制。具体地说，拟议的研究将确定优势和非优势手臂系统的信息存储是否共享相同的工作记忆资源(目标1)，检验视觉运动转换的肢体间迁移是基于转换的内部模型的假设(目标2)，并比较学习新惯性负荷的肢体间迁移和新视觉运动转换(目标3)。这些目标将通过比较一只手臂的初始训练对另一只手臂随后的表现的影响，以适应手位置的视觉显示和/或新的惯性条件来研究。从这些发现中获得的信息应该被证明是临床康复应用的关键，这些应用解决了患者的运动学习问题，这些患者必须适应由神经和矫形功能障碍造成的改变的肌肉骨骼状况。这一信息将特别有益于那些涉及单侧损伤患者的应用，这些患者经常被迫使用非优势手臂进行功能活动。我们关于双手学习迁移的发现可能会带来新的见解，有助于构建特定的训练方案，使用对臂训练来改善偏瘫患者的功能。