Effect of Learning Strategy Adopted by The Learner upon Motor Learning

本研究旨在探讨学习者所采用的学习策略对动作学习的影响。具体而言，实验一比较了学习者采用的KR-使用时间表与典型KR频率条件下的学习效果，实验二比较了学习者采用的练习时间表与典型练习时间表的学习效果，发现两个实验结果略有不同。在实验一中，被试倾向于采用100%KR使用时间表，这一策略与最近的研究结果不一致，即100%KR的练习条件劣于较少频率的KR条件。在实验二中，几乎所有的被试都没有采用典型的“块”时间表，这一结果与运动学习研究中发现的“语境干扰效应”并不矛盾。此外，没有被试采用典型的随机练习策略，实验中还发现了与典型的块练习和典型的随机练习不同的练习时间表，除了前两个实验外，还考察了学习者在三个动作任务的学习中所采用的全身协调策略。在本实验中，假设随机练习计划优于块练习计划的原因之一可能是全身协调性的差异导致的练习计划的组成。与预期相反，在性能分析中没有发现上下文干扰效应，因此放弃了剩余运动分析。然而，有趣的结果，取得了有关的变化协调沿着的做法。

The purpose of this study was to examine the effect of learning strategy adopted by the learner on the motor learning. Concretely, the effectiveness of KR-use schedule adopted by the leaner was compared with the effectiveness of typical KR frequency conditions in the first experiment, and the effectiveness of practice schedule adopted by the learner was compared with the effectiveness of typical practice schedules in the second experiment.Slight different results were found between two experiment results. In the first experiment, subjects tended to adopt 100% KR use schedule, and this strategy was inconsistent with the recent findings that practice condition with 100% KR is inferior to the condition with less frequent KR condition. In the second experiment, almost all subject didn't adopt typical "block" schedule, and this result was not contradictory to the "contextual interference effects" found by the study of motor learning. Moreover, no subject adopted typical random practice strategy, and various types of practice schedule were found which were not the same as typical block or typical random practice schedule.In addition to the former two experiments, the whole body coordination strategy adopted by the learner in the learning of three motor tasks was also examined. In this experiment, it was hypothesized that one reason of the superiority of random practice schedule over block practice schedule might be the difference of whole body coordination resulted in the composition of practice schedule. Contrary to expectation, contextual interference effect was not found in the performance analysis, therefore the residual motion analysis was abandoned. However, interesting results were obtained concerning the change of coordination along with the practice.