Figure 2
From: Swallowing kinematic analysis might be helpful in predicting aspiration and pyriform sinus stasis

ROC curve of parameters of hyoid movement kinematic analyses for predicting aspiration. Dx anterior hyoid displacement, Vx velocity of anterior hyoid displacement, Dy superior hyoid displacement, Vy velocity of superior hyoid displacement, Dxy maximal hyoid displacement, Vxy average velocity of maximal hyoid displacement.