Children's Hospital Boston, Harvard Medical School, Boston, MA 02115, United States.
Infant Behav Dev. 2010 Apr;33(2):209-18. doi: 10.1016/j.infbeh.2009.10.001. Epub 2010 Feb 23.
Coordination between movements of individual tongue points, and between soft palate elevation and tongue movements, were examined in 12 prematurely born infants referred from hospital NICUs for videofluoroscopic swallow study (VFSS) due to poor oral feeding and suspicion of aspiration. Detailed post-evaluation kinematic analysis was conducted by digitizing images of a lateral view of digitally superimposed points on the tongue and soft palate. The primary measure of coordination was continuous relative phase of the time series created by movements of points on the tongue and soft palate over successive frames. Three points on the tongue (anterior, medial, and posterior) were organized around a stable in-phase pattern, with a phase lag that implied an anterior to posterior direction of motion. Coordination between a tongue point and a point on the soft palate during lowering and elevation was close to anti-phase at initiation of the pharyngeal swallow. These findings suggest that anti-phase coordination between tongue and soft palate may reflect the process by which the tongue is timed to pump liquid by moving it into an enclosed space, compressing it, and allowing it to leave by a specific route through the pharynx.
我们对 12 名因口腔喂养不良和疑似吸入而从医院 NICU 转来进行视频透视吞咽研究（VFSS）的早产儿进行了个体舌位运动之间以及软腭抬高和舌运动之间的协调性研究。通过对舌和软腭上数字叠加点的侧视图进行数字化图像，进行了详细的后评估运动学分析。协调的主要衡量标准是通过连续帧上舌和软腭运动创建的时间序列的连续相对相位。舌上的三个点（前、中、后）围绕一个稳定的同相模式组织，相位滞后表明运动方向从前向后。在咽吞咽开始时，舌上一点和软腭上一点在降低和抬高期间的协调接近反相。这些发现表明，舌和软腭之间的反相协调可能反映了通过将液体移动到封闭空间、压缩液体并通过特定途径通过咽来允许其离开的过程来定时泵送液体的过程。
