// parameters for managing segmentation of sections
seg_per_char_l = 10		// segments per characteristic length
lambdaf = 100           // maximum frequency to consider for lambda
d_lambda = .1           // make 1/d_lamba segments for each lambda, not exactly, but slt

celsius = 35

// hh3 na
soma_gna = .25
axon_gna = 1            // changed from 5 to 1, to make dendrites less potent, now get appropriate ~20mV somatic depolarization from proximal dendritic nmda spks w/o spking soma/axon
dend_gna = .006
dend_gna_slope = -dend_gna/200  // taper to 0 conductance at 200um

taum_gna = .05
tauh_gna = .5
tausb_gna = .1
taus_gna = 20
tausvh_gna = 10
tausvs_gna = 5
powm_gna = 2
powh_gna = 1
pows_gna = 1
objref hhna_suffix
hhna_suffix = new String("hh3na")

// hh3 k
soma_gk = 0.03
axon_gk = .05
dend_gk = 0.002
dend_gk = 0.0003
dend_gk_slope = 0

dend_cond_scal = 1
dend_gk /= dend_cond_scal
dend_gna /= dend_cond_scal
dend_gna_slope /= dend_cond_scal

taun_gk = 1
pown_gk = 1  //has to be 1 for 'stability'

objref hhk_suffix
hhk_suffix = new String("hh3k")

// passive
dendritic_Cm  = 2
somatic_Cm  = 1
myelin_Cm = 0.05
global_Rm = 20000
dendritic_Rm = global_Rm/2
node_Rm = 50
global_Ra = 100
objref pas_suffix
pas_suffix = new String("fastpas")

// reversals
global_epas = -70
global_ena = 60
global_ek = -90

// spine params
spnspc = .5 // isi(interspineinterval)=0.5um, i.e., density (2 spines/um)
spine_head_L = 0.5
spine_head_diam = 0.5
spine_neck_L = 1.5
spine_neck_diam = 0.25

// run params
dt = .1
fixed_step_dt = dt
steps_per_ms = 10
screen_update_invl = 0.1
tstop = 500
tsamp = tstop/dt+1
v_init = -70

// possion firing properties
ex_stim_freq = 50	// 50 Hz
meanisi = 1000/ex_stim_freq //in ms/spk  1000ms/sec / spk/sec 
//poisson seed offset
luckyoffset = 42

// synapses
maxsyn1 = 40   
maxsyn2 = 40   

// ampa channel speed
dsyntau1 = 0.5
dsyntau2 = .05

// nmda channel speed, fit to 35C nmda model
nmdadsyntau1 = 18.8
nmdadsyntau2 = 2.1

// synapse conductances
snv_nmda_gmax = 3
snv_ampa_gmax = 1.5