Movement Healing Laboratory, Department of Physical Therapy, Yonsei University, Wonju, Korea.
NeuroRehabilitation. 2012;31(4):349-55. doi: 10.3233/NRE-2012-00803.
The purpose of this study was to compare EEG topographical maps in normal children and children with cerebral palsy (CP) during motor execution and motor imagery tasks.
Four normal children and four children with CP (mean age 11.6 years) were recruited from a community medical center. An EEG-based brain mapping system with 30 scalp sites (extended 10--20 system) was used to determine cortical reorganization in the regions of interest (ROIs) during four motor tasks: movement execution (ME), kinesthetic-motor imagery (KMI), observation of movement (OOM), and visual motor imagery (VMI). ROIs included the primary sensorimotor cortex (SMC), premotor cortex (PMC), and supplementary motor area (SMA).
Descriptive analysis.
Normal children showed increased SMC activation during the ME and KMI aswell as SMC and visual cortex (VC) activation during KMI. Children with CP showed similar activation in the SMC and other motor network areas (PMC, SMA, and VC). During the OOM and VMI tasks, the VC or occipital area were primarily activated in normal children, whereas the VC, SMC, and bilateral auditory areas were activated in children with CP.
This is the first study demonstrating different neural substrates for motor imagery tasks in normal and children with CP.
本研究旨在比较正常儿童和脑瘫（CP）儿童在执行运动和运动想象任务时的脑电图地形图。
从社区医疗中心招募了 4 名正常儿童和 4 名 CP 儿童（平均年龄 11.6 岁）。使用基于脑电图的脑映射系统，该系统具有 30 个头皮部位（扩展的 10-20 系统），用于确定四个运动任务期间感兴趣区域（ROI）的皮质重组：运动执行（ME）、动觉运动想象（KMI）、观察运动（OOM）和视觉运动想象（VMI）。ROI 包括初级感觉运动皮层（SMC）、运动前皮层（PMC）和辅助运动区（SMA）。
描述性分析。
正常儿童在 ME 和 KMI 期间表现出 SMC 激活增加，在 KMI 期间还表现出 SMC 和视觉皮层（VC）激活增加。CP 儿童在 SMC 和其他运动网络区域（PMC、SMA 和 VC）中表现出类似的激活。在 OOM 和 VMI 任务中，正常儿童主要激活 VC 或枕叶区域，而 CP 儿童则激活 VC、SMC 和双侧听觉区域。
这是第一项研究，证明了正常儿童和 CP 儿童在运动想象任务中具有不同的神经基础。
