Figure 2.
The bursting activity of fictive inspiration was recorded from the hypoglossal rootlet (XII), electronically integrated (∫XII), and recorded simultaneously with GABAergc IPSCs in CVNs (top traces). While there was a significant increase in IPSC frequency during the inspiratory period, there were no differences between control and SO2-exposed pups in either the spontaneous (control, 6.4 ± 0.9 Hz; SO2, 6.9 ± 0.8 Hz) nor inspiratory phases (control, 11.1 ± 1.3 Hz; SO2, 11.9 ± 0.7 Hz), as shown in the histogram (control, n = 6 animals; SO2, n = 5 animals; *P < 0.05).