Figure 7. The effect of hypoxia on expiratory neurones in a P10 mouse.

The rhythmic hyperpolarizations occurring prior to and during integrated XII activity were, compared with control conditions (upper panel), decreased during augmentation (second panel) and suppressed during depression (third panel). The hyperpolarization consisted of two components as evident in the average of eighteen sweeps (right panels). Note that hypoxia had a differential effect on the two components of phasic hyperpolarization.