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首页> 外文期刊>Journal of computer assisted tomography >Functional MRI of the supplementary motor area: comparison of motor and sensory tasks.
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Functional MRI of the supplementary motor area: comparison of motor and sensory tasks.

机译：辅助运动区的功能性MRI：运动和感觉任务的比较。

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PURPOSE: The purpose of this work was to assess the activation of the supplementary motor area (SMA) during simple motor, complex motor, hot sensory, and touch sensory tasks. METHOD: Functional MRI (fMRI) was performed in eight right-handed healthy volunteers. There were four tasks: simple motor, complex motor, hot sensory, and touch sensory. The number of pixels and the average percentage change of signal intensity in the activated SMA were obtained during the four tasks and then compared. RESULTS: The SMA was consistently activated on fMRI during both motor and sensory tasks. The average number of activated pixels during the complex motor task was more than the number during the hot sensory task, but the difference was not statistically significant. The average number of activated pixels during the complex motor task was greater than during the simple motor task. The average number of activated pixels during the hot sensory task was greater than during the touch sensory task. The average percentage change of signal intensity was statistically significant between the simple motor and the complex motor task. The average percentage change of signal intensity was not statistically significant between the complex motor and the hot sensory task. Conclusion: The SMA is activated in both motor and sensory tasks. The degree of activation of the SMA differs according to the type of task.
机译：目的：这项工作的目的是评估简单电动机，复杂电动机，热感官和触觉感官任务期间辅助运动区（SMA）的激活。方法：对八名右撇子健康志愿者进行了功能性磁共振成像（fMRI）。有四个任务：简单运动，复杂运动，热感觉和触摸感觉。在这四个任务中，获得了激活的SMA中的像素数量和信号强度的平均百分比变化，然后进行了比较。结果：在运动和感觉任务期间，SMA在fMRI上均被持续激活。在复杂的运动任务中，激活像素的平均数量大于在热感官任务中的像素数量，但差异无统计学意义。复杂运动任务期间的平均激活像素数大于简单运动任务期间的平均像素数。在热感觉任务期间，激活像素的平均数量大于在触摸感觉任务期间。在简单运动和复杂运动任务之间，信号强度的平均百分比变化在统计学上是显着的。在复杂的运动和热感觉任务之间，信号强度的平均百分比变化在统计学上不显着。结论：SMA在运动和感觉任务中均被激活。 SMA的激活程度因任务类型而异。

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