Representations underlying skill in the discrete sequence production task: effect of hand used and hand position.

Representations underlying skill in the discrete sequence production task: effect of hand used and hand position.
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DOI:
10.1007/s00426-008-0174-2
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发表时间:
2009-09
期刊:
Psychological research
影响因子:
--
通讯作者:
Verwey WB
Verwey WB
中科院分区:
其他
文献类型:
--
作者:
de Kleine E;Verwey WB

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各种研究表明,运动序列最初主要是在与效应器无关的空间坐标中学习的,只有在效应器相关的坐标中进行扩展练习后才学习。本研究通过操纵所用的手以及手相对于身体的位置来检验离散序列产生(DSP)任务的概念。在实验 1 的序列学习过程中,序列是通过对关键特定提示做出反应来执行的,手的位置对于练习过的手的执行显得很重要,但对于未练习过的手来说则不然。在实验 2 中,整个序列是通过对一个提示做出反应来执行的。这产生了与实验 1 类似的结果。这些实验支持这样的观点,即测序技术的稳健性基于多个代码,其中一个是既依赖于效应子又依赖于位置的表示。
Various studies suggest that movement sequences are initially learned predominantly in effector-independent spatial coordinates and only after extended practice in effector-dependent coordinates. The present study examined this notion for the discrete sequence production (DSP) task by manipulating the hand used and the position of the hand relative to the body. During sequence learning in Experiment 1, in which sequences were executed by reacting to key-specific cues, hand position appeared important for execution with the practiced but not with the unpracticed hand. In Experiment 2 entire sequences were executed by reacting to one cue. This produced similar results as in Experiment 1. These experiments support the notion that robustness of sequencing skill is based on several codes, one being a representation that is both effector and position dependent.
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发表时间: 2001-01-01
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影响因子: 1.8
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