Figure 8. Effects of 4-AP on the preBötC network.
A, ∫preBötC (top traces) and ∫XII (bottom traces) under control conditions, in the presence of 2 mm 4-AP and washout. Scale bar is 5 s. B, cartoon showing the configuration of the preBötC field-recording pipette (∫preBötC) and ∫XII suction electrode in A and C. The subcompact division of the nucleus ambiguus is indicated by scNA, and the hypoglossal motonucleus is indicated by XII. C, cycle-triggered averages of the field preBötC recordings under control conditions and in 2 mm 4-AP (n = 4).