Variable motor imagery training induces sleep memory consolidation and transfer improvements
Variable motor imagery training induces sleep memory consolidation and transfer improvements
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DOI：
10.1016/j.nlm.2014.12.010
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发表时间：
2015-03-01
影响因子：
2.7
通讯作者：
Piolino, Pascale
中科院分区：
文献类型：
--
作者：
Debarnot, Ursula;Abichou, Kouloud;Piolino, Pascale
重复或可变顺序的运动技能练习可以更好地实现当天的习得，并分别促进保留和转移。这种练习模式效应已在身体练习中得到证实，但对于运动想象 (MI) 练习后的效果却知之甚少。在本研究中，我们研究了恒定或可变 MI 练习的效果，以及白天或睡眠间隔后的巩固。在 MI 训练之前（预测试）和之后（后测试）以及夜间或白天巩固之后（保留测试）评估身体表现。最后，进一步对未练习的任务进行了迁移测试。结果显示，与测试前相比，所有参与者在测试后的表现均显着提高，而只有接受可变 MI 训练的受试者在一夜睡眠后的记忆力测试中表现出进一步的表现，并表现出将表现转移到新型视觉运动序列的最佳效果。相比之下，持续进行 MI 训练的受试者在白天和睡眠巩固后并没有表现出任何延迟的表现提升。总体而言，这些发现首次部分支持了运动学习与 MI 的练习模式效果，并进一步凸显了心理练习和身体练习之间的新差异，尤其是在巩固方面。总而言之，可变的 MI 练习，而不是恒定的，似乎是运动学习和康复中心理训练的实际影响中应该考虑的有价值的条件。 (C) 2015 Elsevier Inc. 保留所有权利。
Motor-skill practice in repetitive or variable orders leads to better within-day acquisition and facilitates retention and transfer, respectively. This practice pattern effect has been robustly found for physical practice, but little is known about its effect after motor imagery (MI) practice. In the present study, we investigated the effect of constant or variable MI practice, and the consolidation following a day-time or a sleep interval. The physical performance was assessed before (pre-test) and after MI training (post-test), as well as after a night or day-time consolidation (retention test). Finally, a transfer test on an unpracticed task was further performed. Results revealed that in all participants, performance increased significantly in the post-test when compared with the pre-test, while only subjects in the variable MI training showed further gains in performance in the retention test following a night of sleep, and exhibited the best transfer of performance to a novel visuomotor sequence. In contrast, subjects in the constant MI training did not show any delayed performance gain following both day and sleep-consolidation. Overall, and for the first time, these findings partially support the practice pattern effect of motor learning with MI, and further highlight a new difference between mental and physical practice, especially on consolidation. To conclude, variable MI practice, rather than constant, seems to be the valuable condition that should be considered in the practical implications of mental training in motor learning and rehabilitation. (C) 2015 Elsevier Inc. All rights reserved.