Fig. 7.

There were prolonged central apneas primarily during the awake state in goats 10–15 h after injections of IA into the preBötzC. A–D: recordings from one goat; E and F: recordings from a second goat. All recordings are for periods 10–15 h after injections of 10 μl of IA. A and B: regular breathing during awake and NREM sleep states, respectively. C and D: gasp-like breaths coincident with strong contraction of the ABD and an UAW muscle. Also note the prolonged central apnea in D. Similarly, in another goat, there are also gasp-like breaths followed by prolonged central apneas (E and F). EEG, electroencephalogram; EOG, electrooculogram.