FIG. 8.

The relationship between the EMG activities in three key muscles for arrhythmic decerebrates (dec), decerebrates exhibiting rhythmic tongue and jaw movement (dec+rtjm) and conscious intact suckling pigs (intact). The data from each of the 3 sources has been aligned to the profiles of hyoglossus activity using the cross-correlations between the median profiles of hyoglossus EMG activity to mylohyoid and geniohyoid EMG activity. The time scale is the relative 100 units used for each swallow because of the differences in swallow durations among the 3 models. The median profiles of mylohyoid EMG activity suggest a slightly earlier response in the presence of cerebral hemispheres while the median profiles of geniohyoid EMG activity indicate a substantially changed pattern of response.