Inward-rectifying k+ current (kir2 type). Parameters based on mermelstein et al (1998). Activation time constant may differ between the paper and mod file. No model db ancestors. Animal and neuron model is as specified in the paper. No animal model or experiments are mentioned, although most of the previous experimental data mentioned is from rats. Parameters for the ir-type k channel came from previous experiments on rat nucleus accumbens medium spiny neurons (mermelstein et al. 1998).