Toussaint Lucette, Robin Nicolas, Blandin Yannick
CeRCA, CNRS UMR 6234, Poitiers, France.
Motor Control. 2010 Apr;14(2):159-75. doi: 10.1123/mcj.14.2.159.
We examined the similarities between actual and motor imagery practice with regard to the development of sensorimotor representations. Participants had to reproduce knee joint positions (15 or 150 trials) in visuo-proprioceptive or proprioceptive conditions (Experiment 1) or in visual, proprioceptive or visuo-proprioceptive imagery conditions (Experiment 2), before being transferred in a proprioceptive condition. A familiarization session in a proprioceptive condition was performed before imagery practice only (Experiment 2). Results showed that the effect of vision withdrawal varied according to actual or motor imagery practice: performance accuracy in transfer decreased after actual visuo-proprioceptive practice while it increased after visuo-proprioceptive imagery practice. These results suggest that different movement representations can be developed following actual or imagery practice. They also suggest that information from previous experience could be stored in a sensorimotor memory and could be fundamental for the efficiency of motor imagery practice.
我们研究了实际练习与运动想象练习在感觉运动表征发展方面的相似性。参与者必须在视觉本体感觉或本体感觉条件下（实验1），或在视觉、本体感觉或视觉本体感觉想象条件下（实验2），重现膝关节位置（15次或150次试验），然后转换到本体感觉条件。仅在想象练习之前（实验2）进行了一次本体感觉条件下的熟悉训练。结果表明，视觉撤离的效果因实际练习或运动想象练习而异：实际视觉本体感觉练习后，转换时的表现准确性下降，而视觉本体感觉想象练习后则增加。这些结果表明，实际练习或想象练习后可以形成不同的运动表征。它们还表明，来自先前经验的信息可以存储在感觉运动记忆中，并且可能是运动想象练习效率的基础。
