ACQUIRING BIMANUAL SKILLS - CONTRASTING FORMS OF INFORMATION FEEDBACK FOR INTERLIMB DECOUPLING
ACQUIRING BIMANUAL SKILLS - CONTRASTING FORMS OF INFORMATION FEEDBACK FOR INTERLIMB DECOUPLING
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DOI：
10.1037/0278-7393.19.6.1328
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发表时间：
1993-11-01
影响因子：
2.6
通讯作者：
SERRIEN, DJ
中科院分区：
文献类型：
--
作者：
SWINNEN, SP;WALTER, CB;SERRIEN, DJ
本实验研究了学习者在不同信息反馈源的帮助下同时进行不同上肢动作的能力。左肢肘关节屈曲，右肢屈曲-伸-屈。在习得和保持运动规范的结构和韵律水平上评估肢体间相互作用。尽管最初四肢同步的倾向很强，但研究结果表明，随着增强反馈的练习，Ss在四肢间解耦方面逐渐变得更加成功。然而，对于肢间解耦，详细的运动运动学知识并不比全局结果信息更有效，这表明结果知识可能比之前认为的更有可能获得多自由度任务。最后，数据支持学习新的协调任务涉及抑制先前存在的首选协调倾向的一般概念，这通常是建立新的协调模式的先决条件。
The present experiments addressed the learner's capability to perform different upper-limb actions simultaneously with the help of various sources of information feedback. An elbow flexion movement was made in the left limb together with a flexion-extension-flexion movement in the right limb. Interlimb interactions were assessed at the structural as well as the metrical level of movement specification during acquisition and retention. Despite a strong initial tendency for the limbs to be synchronized, findings revealed that Ss became gradually more successful in interlimb decoupling as a result of practice with augmented feedback. However, detailed knowledge of movement kinematics was no more effective than global outcome information for interlimb decoupling, indicating that knowledge of results may have more potential for acquiring multiple degree-of-freedom tasks than previously believed. Finally, the data support the general notion that learning new coordination tasks involves the suppression of preexisting preferred coordination tendencies, which is often a prerequisite for building new coordination modes.