An egocentric frame of reference in implicit motor sequence learning
An egocentric frame of reference in implicit motor sequence learning
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DOI：
10.1007/s00426-007-0129-z
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发表时间：
2008-09-01
影响因子：
2.3
通讯作者：
Willingham, Daniel T.
中科院分区：
文献类型：
--
作者：
Witt, Jessica K.;Ashe, James;Willingham, Daniel T.
我们研究了在内隐运动序列学习过程中，哪个参照系被唤起。参与者完成了一项典型的系列反应时间任务。在第一个实验中，我们分离了以自我为中心的参照系和以分配为中心的参照系，发现学习完全在以自我为中心的参照系中进行。在第二个实验中，我们将以手为中心的空间从其他以自我为中心的参照系中分离出来。我们发现，对于单手测序任务，序列在以自我为中心的参考系中编码，而不是在以手为中心的参考系中编码。我们的结果仅限于在学习的早期阶段对新序列的内隐学习。这些发现与运动技能学习中涉及的神经机制在自我中心坐标下运作的说法一致。
We investigated which frame of reference is evoked during implicit motor sequence learning. Participants completed a typical serial reaction time task. In the first experiment, we isolated egocentric and allocentric frames of reference and found that learning was solely in an egocentric reference frame. In a second experiment, we isolated hand-centered space from other egocentric frames of reference. We found that for a one-handed sequencing task, the sequence was coded in an egocentric reference frame but not a hand-centered reference frame. Our results are restricted to implicit learning of novel sequences in the early stages of learning. These findings are consistent with claims that the neural mechanisms involved in motor skill learning operate in egocentric coordinates.