Kinematic strategies underlying improvement in the acquisition of a sequential finger task with self-generated vs. Cued repetition training.
Kinematic strategies underlying improvement in the acquisition of a sequential finger task with self-generated vs. Cued repetition training.
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DOI：
10.1371/journal.pone.0052063
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发表时间：
2012
期刊：
影响因子：
3.7
通讯作者：
Korman M
中科院分区：
文献类型：
--
作者：
Friedman J;Korman M
许多运动技能，例如打字，都包括将简单的动作清晰地表达成新颖的序列，通过练习可以更快、更流畅地执行这些序列。通过多节训练重新组织这些动作序列的动态及其对训练期间步速自我调节量的依赖性尚未完全了解。在这项研究中，参与者练习了一系列按键。培训课程包括外部（Cued）或自我启动（Uncued）培训。表现速度的长期提高主要是由于两组手指运动之间的差距减少，但无提示训练带来了更高的收益。尽管速度的净收益相似，但产生这些变化的基本运动学策略和训练序列的表示在受试者之间存在显着差异。由于训练类型和受试者之间策略的差异而导致的长期记忆差异表明，不同的神经机制可能有助于观察到的整体表现的改善。
Many motor skills, such as typing, consist of articulating simple movements into novel sequences that are executed faster and smoother with practice. Dynamics of re-organization of these movement sequences with multi-session training and its dependence on the amount of self-regulation of pace during training is not yet fully understood. In this study, participants practiced a sequence of key presses. Training sessions consisted of either externally (Cued) or self-initiated (Uncued) training. Long-term improvements in performance speed were mainly due to reducing gaps between finger movements in both groups, but Uncued training induced higher gains. The underlying kinematic strategies producing these changes and the representation of the trained sequence differed significantly across subjects, although net gains in speed were similar. The differences in long-term memory due to the type of training and the variation in strategies between subjects, suggest that the different neural mechanisms may subserve the improvements observed in overall performance.
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影响因子：
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