Action observation improves motor imagery: specific interactions between simulative processes
Action observation improves motor imagery: specific interactions between simulative processes
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DOI：
10.1007/s00221-009-1974-3
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发表时间：
2009-10-01
影响因子：
2
通讯作者：
Trojano, Luigi
中科院分区：
文献类型：
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作者：
Conson, Massimiliano;Sara, Marco;Trojano, Luigi
在本研究中，我们证明了观察手旋转有特定的促进作用，一个经典的运动想象任务，手偏侧判断。在实验一中，我们发现动作观察能提高被试在手侧化任务上的成绩，但不能提高被试在字母旋转任务上的成绩。在实验2中，我们证明了这种促进作用不是由于仅仅观察移动的手，因为它是由观察手动旋转而不是手动旋转运动（运动特异性）触发的。在实验3中，这种刺激和运动的具体效果被发现是右手特定的，兼容左半球专业化的运动图像，但不是在行动观察。这些数据提供了直接支持的想法，不同的模拟状态，如动作观察和运动想象，有一些共同的机制，但也显示出特定的功能差异。
In the present study, we demonstrated that observation of hand rotation had specific facilitation effects on a classical motor imagery task, the hand-laterality judgement. In Experiment 1, we found that action observation improved subjects' performance on the hand laterality but not on the letter rotation task (stimulus specificity). In Experiment 2, we demonstrated that this facilitation was not due to mere observation of a moving hand, because it was triggered by observation of manual rotation but not of manual prehension movements (motion specificity). In Experiment 3, this stimulus- and motion-specific effect was found to be right hand-specific, compatible with left-hemispheric specialization in motor imagery but not in action observation. These data provided direct support to the idea that different simulation states, such as action observation and motor imagery, share some common mechanisms but also show specific functional differences.