True

• Neostriatum interneuron ACh cell Show Other

• Soma Show Other

• I Na,p Show Other

• Spontaneous firing was driven by the combined action of a sodium current and the hyperpolarization-activated cation current (I(h)), which together ensured that there was no zero current point in the subthreshold voltage range. Spike-triggered calcium entry shaped the falling phase of the action potential waveform and activated calcium-dependent potassium channels Show Other