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. 2012 Sep 19;7(9):e45732. doi: 10.1371/journal.pone.0045732

Figure 6. Role of the Na+ current in action potential activity.

Figure 6

a, A spontaneous action potential (AP: top trace) was used as a voltage command to elicit I Na (bottom trace) from the holding potential of −60 mV in four P2–P3 apical IHCs. The AP was recorded from an immature IHC under current clamp conditions at body temperature. b, Spontaneous action potential activity under current clamp recorded from a P2 basal IHC. The arrow indicates a spontaneous IPSP due to currents flowing through ACh receptors.