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Figure 4. Sagittal domain plots for jaw, hyoid, and tongue markers (anterior and posterior) for the same subject: (A) a complete sequence of feeding on cookie (brittle shortbread fingers, 6 g), and (B) reading the Grandfather Passage. Each recording took about 50 sec and included about 1500 to 2000 datapoints. The XY coordinates for each datapoint were then plotted. The sagittal domain for the hyoid (defined by its centroid) is further forward during speaking than during eating. The ranges covered by sagittal domains in feeding are larger than they are for speaking for every structure [see Hiiemae et al.(2002) and this text]. Reproduced from Hiiemae et al.(2002), with permission from Pergamon Press.
