ITAB-Institute for Advanced Biomedical Technologies, University of Chieti, Chieti, Italy.
Neurosci Lett. 2009 Dec 11;466(3):120-3. doi: 10.1016/j.neulet.2009.09.038. Epub 2009 Sep 23.
The aim of this functional magnetic resonance imaging (fMRI) study was to evaluate negative blood oxygen level-dependent (BOLD) signals during voluntary tongue movement. Deactivated (Negative BOLD) regions included the posterior parietal cortex (PPC), precuneus, and middle temporal gyrus. Activated (Positive BOLD) regions included the primary somatosensory-motor area (SMI), inferior parietal lobule, medial frontal gyrus, superior temporal gyrus, insula, lentiform nucleus, and thalamus. The results were not consistent with previous studies involving unilateral hand and finger movements showing the deactivation of motor-related cortical areas including the ipsilateral MI. The areas of Negative BOLD in the PPC and precuneus might reflect specific neural networks relating to voluntary tongue movement.
本功能磁共振成像 (fMRI) 研究旨在评估自愿舌运动期间的负血氧水平依赖 (BOLD) 信号。失活（负 BOLD）区域包括后顶叶皮层 (PPC)、楔前叶和中颞叶。激活（正 BOLD）区域包括初级体感运动区 (SMI)、下顶叶小叶、内侧额回、上颞叶、脑岛、豆状核和丘脑。结果与之前涉及单侧手和手指运动的研究不一致，这些研究显示对包括同侧 MI 在内的运动相关皮质区域的失活。PPC 和楔前叶的负 BOLD 区域可能反映了与自愿舌运动相关的特定神经网络。
