Delayed rectifier k+ channel for in from durstewitz & gabriel (2006). For interneurons (in). Taken from durstewitz et al. (2000), model no. 82849, with the following changes: modification of states, removal of rate procedure. This file differs from kdr current for pyramidal neurons in that parameters va and vb are modified (lines 51, 62). Animal model is from experiments in this paper, channel kinetics come from a previous model of cortical pyramidal neuron (durstewitz et al. 2000).