Figure 12. Time-dependent rectification was caused by the activation of IH and was blocked by CsCl during current clamp recordings.
Representative whole-cell current clamped recordings of nodose sensory neurons in the absence (A, solution 1 with 2 mM CaCl2) or presence (B) of 5 mM CsCl during hyperpolarizing current injection from 0 to -40 pA in 10 pA step interval (inset in A). C, current-voltage relation of the same neuron at steady state in the absence (^) and presence (•) of 5 mM CsCl. Linear regression was performed to calculate the input resistance for the neuron. Similar results were obtained for 7 neurons.