FIG. 6.

Plot of the relative timings of muscle activities in the swallow of an intact conscious animal and the previously reported activity in the isolated pharyngeal swallow of the decerebrate. ○, muscles used in calculating the regression line and the indicated 95% confidence interval (CI). Only 1 value of geniohyoid timing existed in the isolated, decerebrate swallow, but in the data from the intact swallow, there was an early and late burst. Both bursts, and the mylohyoid burst lie outside the CI for the line.