Anodal tDCS over Primary Motor Cortex Provides No Advantage to Learning Motor Sequences via Observation.
Anodal tDCS over Primary Motor Cortex Provides No Advantage to Learning Motor Sequences via Observation.
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DOI：
10.1155/2018/1237962
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发表时间：
2018
影响因子：
3.1
通讯作者：
Cross ES
中科院分区：
文献类型：
--
作者：
Apšvalka D;Ramsey R;Cross ES
在学习一项新的运动技能时，我们会从观察他人中受益。有人认为，观察他人的动作可以在观察者身上建立一个运动表征，因此，物理学习和观察学习可能有着相似的神经基础。如果物理学习和观察学习有着相似的神经基础，那么在观察练习中刺激运动皮层，就应该像通过物理练习一样，通过观察来增强学习。在这里，我们使用经颅直流电刺激（tDCS）来解决在观察训练期间对M1的阳极刺激是否有助于技能获得。参与者在连续四天的观察练习中学习按键序列，同时接受M1的主动或假刺激。结果表明，主动刺激对技能学习没有优势。此外，贝叶斯分析显示，在我们的相关措施的零假设的证据。因此，我们的研究结果没有提供支持的假设，兴奋性M1刺激可以提高观察学习的物理学习类似的方式。更一般地说，这些结果补充了越来越多的文献，这些文献表明tDCS的影响往往很小，不一致，难以复制。未来的tDCS研究在设计实验程序时应考虑这些因素。
When learning a new motor skill, we benefit from watching others. It has been suggested that observation of others' actions can build a motor representation in the observer, and as such, physical and observational learning might share a similar neural basis. If physical and observational learning share a similar neural basis, then motor cortex stimulation during observational practice should similarly enhance learning by observation as it does through physical practice. Here, we used transcranial direct-current stimulation (tDCS) to address whether anodal stimulation to M1 during observational training facilitates skill acquisition. Participants learned keypress sequences across four consecutive days of observational practice while receiving active or sham stimulation over M1. The results demonstrated that active stimulation provided no advantage to skill learning over sham stimulation. Further, Bayesian analyses revealed evidence in favour of the null hypothesis across our dependent measures. Our findings therefore provide no support for the hypothesis that excitatory M1 stimulation can enhance observational learning in a similar manner to physical learning. More generally, the results add to a growing literature that suggests that the effects of tDCS tend to be small, inconsistent, and hard to replicate. Future tDCS research should consider these factors when designing experimental procedures.
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DOI：
10.1111/j.1460-9568.2009.07067.x
发表时间：
2010-01
期刊：
The European journal of neuroscience
影响因子：
--
作者：
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通讯作者：
Donoghue J
影响因子：
2.9
作者：
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通讯作者：
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影响因子：
2
作者：
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DOI：
10.1093/cercor/bhv167
发表时间：
2015-12
期刊：
Cerebral cortex (New York, N.Y. : 1991)
影响因子：
--
作者：
Kirsch LP;Cross ES
通讯作者：
Cross ES
影响因子：
5.7
作者：
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通讯作者：
Eickhoff SB