Skip to main content
. Author manuscript; available in PMC: 2009 Jun 30.
Published in final edited form as: Respir Physiol Neurobiol. 2008 Mar 18;162(1):8–17. doi: 10.1016/j.resp.2008.03.005

Figure 1.

Figure 1

Representative phrenic neurogram from a rat exposed to (A) acute intermittent hypoxia (AIH) or (B) acute sustained hypoxia (ASH). Rectified, integrated phrenic discharge during baseline and 60 min post-hypoxia are expanded to illustrate amplitude and frequency changes following hypoxia; the time points in between are compressed to illustrate general trends in phrenic amplitude. AIH results in large increases in phrenic amplitude and smaller increases in burst frequency upon return to baseline inspired oxygen conditions.