Fig. 3.
Representative example showing the temporal relationship between the forces developed by tongue movements and the onset of the Int Dia burst. Tongue force could not be clearly observed during the baseline period of spontaneous breathing (left, “Pre-occlusion”). Following tracheal occlusion, the onset of retrusive tongue force in the XIIMED-sectioned rat and protrusive force in XIILAT-sectioned rat occurred before the diaphragm burst (middle, “Occlusion”). In contrast, following capsaicin treatment (right, “Occlusion & Capsaicin”), the onset of the tongue force was delayed and occurred after the diaphragm burst.