float Ca_tab_max = 0.050 float tab_xdivs = 299 float tab_xfills = tab_xdivs float tab_xmin = -0.10 float tab_xmax = 0.05 // only used for proto channels float GNa = 1 float GCa = 1 float GK = 1 float Gh = 1 /* cable parameters */ float CM = 0.01 float RMs = 3.0300 float RA = 1.0 // CAVE : the values of CM, RMs and RA are overwritten by the cell // description file /* preset constants */ // Ek value used for the leak conductance float EREST_ACT = -0.065 // !!Change!!Ek value used for the RESET float RESET_ACT = -0.065 float ELEAK = -0.055 /* concentrations */ //external Ca as in normal slice Ringer float CCaO = 2.4000 //internal Ca in mM float CCaI = 75.5e-6 //diameter of Ca_shells float Shell_thick = 0.6e-6 // Ca_concen tau float CaTau = 0.2 float Temp = 37 float ENa = 0.055 float EK = -0.090 float ECa = 0.080 float EH = -0.042 // We refer to the ../Granule_cell/Gran_const.g script for the origin // of the following peak conductance values. The scaling factors arose // during the tuning process and have been inherited here, although they should // for consistency better be replaced by the same unique scaling factor as used for the // granule cell model (actually scaling_f1 * scaling_f2 = 0.143, while scaling_f = 0.156). // Two further remarks : // 1) These values represent conductance densities, as they are in Golg_comp.g multiplied // by the surface area of the prototype cell. Hence the neuron dynamics will be independent // of the diameter of the compartment specified in the cell description file Golg1M0.p. // 2) To know the actual conductances, use the showfield command from the genesis command line and look // at the Gbar field of the neuron's channel. float scaling_f1 = 314.15 / 31000.0 float scaling_f2 = 1.1e9 / 78e6 float GInNas = 2 * 2 * scaling_f1 * scaling_f2 * 10 * 70 float GKDrs = 1.25 * 2 * scaling_f1 * scaling_f2 * 10 * 19 float GKAs = 0.5 * 2 * scaling_f1 * scaling_f2 * 10 * 3.67 float GCaHVAs = 1 * 2 * scaling_f1 * scaling_f2 * 10 * 2.91 float GHs = 20.0/3 * 2 * scaling_f1 * scaling_f2 * 10 * 0.09 float GMocs = 0.025 * 2 * scaling_f1 * scaling_f2 * 10 * 80 // the low value of GMocs should be interpreted in the light of the slow time constant // of the calcium pool /* Synapses */ float E_GABAA = -0.070 float G_GABAA = 1.0 float E_NMDA = 0.0 float G_NMDA = 1200.0e-12 / 2012.67e-12 float E_AMPA = 0.0 float G_AMPA = 720.0e-12 / 2012.67e-12 float E_GABAB = -0.090 float G_GABAB = 1.0 float G_GABAAs = G_GABAA float GNMDAs = G_NMDA float GAMPAs = G_AMPA float G_GABABs = G_GABAB