Figure 2.
Effects of varying numbers of APs and frequency on the amplitude of the AHPslow. All data points were recorded from a single acutely dissociated adult rabbit nodose neuron at room temperature. Resting potential and membrane input resistance were −55 mV and 53 MΩ, respectively. APs were evoked by transmembrane depolarizing current pulses (2 nA, 3 ms) at the frequencies indicated. Similar results were obtained when measuring IAHP by using the hybrid voltage-clamp technique in rabbit, guinea pig, and ferret nodose neurons.