Experience-based priming of body parts: A study of action imitation
Experience-based priming of body parts: A study of action imitation
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DOI：
10.1016/j.brainres.2007.12.076
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发表时间：
2008-06-27
期刊：
影响因子：
2.9
通讯作者：
Heyes, Cecilia
中科院分区：
文献类型：
--
作者：
Gillmeister, Helge;Catmur, Caroline;Heyes, Cecilia
动作的两个重要方面是动作本身和动作所涉及的身体部位。实验一测试了自动模仿对动作的肢体尺寸是否敏感。我们发现，手和脚的运动是通过观察相应的、与任务无关的运动效应而选择性启动的。实验二利用身体部位启动效应来考察感觉运动学习在模仿发展中的作用。结果表明，在不相容训练中，观察手的动作与执行脚的动作相匹配，反之亦然。在不相容训练中，受试者在观察和执行手和脚的动作之间经历了典型的偶然性，而在不相容训练中，受试者的身体部位启动的减少幅度更大。这些发现与显性行为模仿是由镜像神经元系统介导的假设是一致的，镜像神经元系统是体位组织的。我们的研究结果也支持了模仿和镜像神经元系统的发展是由相关的感觉运动学习驱动的假设。(C) 2008 Elsevier B.V.版权所有
Two important dimensions of action are the movement and the body part with which the movement is effected. Experiment I tested whether automatic imitation is sensitive to the body part dimension of action. We found that hand and foot movements were selectively primed by observation of a corresponding, task-irrelevant effector in motion. Experiment 2 used this body part priming effect to investigate the role of sensorimotor learning in the development of imitation. The results showed that incompatible training, in which observation of hand movements was paired with execution of foot movements and vice versa, led to a greater reduction in body part priming than compatible training, in which subjects experienced typical contingencies between observation and execution of hand and foot movements. These findings are consistent with the assumption that overt behavioral imitation is mediated by the mirror neuron system, which is somatotopically organized. our results also support the hypothesis that the development of imitation and the mirror neuron system are driven by correlated sensorimotor learning. (C) 2008 Elsevier B.V. All rights reserved.