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首页> 外文期刊>The Open Neuroimaging Journal >Motor Representations and Practice Affect Brain Systems Underlying Imagery: An fMRI Study of Internal Imagery in Novices and Active High Jumpers
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Motor Representations and Practice Affect Brain Systems Underlying Imagery: An fMRI Study of Internal Imagery in Novices and Active High Jumpers

机译：运动表征和实践影响基础图像的大脑系统：新手和主动跳高运动员内部图像的fMRI研究

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This study used functional magnetic resonance imaging (fMRI) to investigate differences in brain activity between one group of active high jumpers and one group of high jumping novices (controls) when performing motor imagery of a high jump. It was also investigated how internal imagery training affects neural activity. The results showed that active high jumpers primarily activated motor areas, e.g. pre-motor cortex and cerebellum. Novices activated visual areas, e.g. superior occipital cortex. Imagery training resulted in a reduction of activity in parietal cortex. These results indicate that in order to use an internal perspective during motor imagery of a complex skill, one must have well established motor representations of the skill which then translates into a motor/internal pattern of brain activity. If not, an external perspective will be used and the corresponding brain activation will be a visual/external pattern. Moreover, the findings imply that imagery training reduces the activity in parietal cortex suggesting that imagery is performed more automatic and results in a more efficient motor representation more easily accessed during motor performance.
机译：这项研究使用功能磁共振成像（fMRI）研究了进行跳高运动成像时一组活跃的跳高运动员和一组跳高的新手（对照组）之间的大脑活动差异。还研究了内部图像训练如何影响神经活动。结果表明，主动跳高运动员首先激活了运动区域，例如：运动前皮质和小脑。新手可以激活视觉区域，例如枕骨上皮质。图像训练导致顶叶皮层活动减少。这些结果表明，为了在一项复杂技能的运动成像过程中使用内部透视图，必须对这项技能具有充分确立的运动表现，然后才能将其转化为大脑活动的运动/内部模式。如果没有，将使用外部视角，相应的大脑激活将是视觉/外部模式。此外，这些发现暗示图像训练会减少顶叶皮层的活动，这表明图像执行起来更加自动化，并且在运动过程中更容易获得更有效的运动表现。

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