Figure 2.

Recordings from TRPV1⁺ MM TG neurons. A, In MM TG neurons belonging to the group S3, a single AP in WGA⁺/TRPV1⁺ neuron is generated by current pulse (protocol-1), which has characteristic hump on down stroke phase of AP. B, In MM TG neurons belonging to the group S4, a single AP in WGA⁺/TRPV1⁺ neuron has distinctive deflection on down stroke phase of AP. C, Current-evoked AP train from a WGA⁺/TRPV1⁺ TG neuron belonging to the group S4. Depictured AP train is evoked by a 50-pA step lasting 1 s. D, In WGA⁺/TRPV1⁺ TG neurons belonging to the group S3, currents were generated by waveforms from Figure 1E. E, In WGA⁺/TRPV1⁺ TG neurons belonging to the group S4, currents generated by waveforms from Figure 1E do not have inward component.