create soma, priden[2], secden[2], tuftden[2], hillock, initialseg[2]
nmyelin = 5
create node[nmyelin], myelin[nmyelin]
objref dendritic, somatic, tuft, second, somden, axon, sad
dendritic = new SectionList()
forsec "den" dendritic.append()
somatic = new SectionList()
soma somatic.append
hillock somatic.append
tuft = new SectionList()
forsec "tuftden" tuft.append
second = new SectionList()
forsec "secden" second.append
somden = new SectionList()
forsec somatic somden.append()
forsec dendritic somden.append()
axon = new SectionList()
forsec "node" axon.append()
initialseg[0] somden.append()
initialseg[1] axon.append()
sad = new SectionList()
forsec somden sad.append()
forsec axon sad.append()
access soma
proc topol() {local i
connect secden[0](0), soma(.5)
connect secden[1](0), soma(.5)
connect priden[0](0), soma(1)
connect priden[1](0), priden[0](1) // this junction for electrode
for i=0, 1 connect tuftden[i](0), priden[1](1)
connect hillock(0), soma(0)
connect initialseg[0](0), hillock(1)
connect initialseg[1](0), initialseg[0](1) // for cut
connect myelin[0](0), initialseg[1](1)
for i=0, nmyelin-1 {
connect node[i](0), myelin[i](1)
if (i == nmyelin-1) break
connect myelin[i+1](0), node[i](1)
}
}
proc segments() {local i
soma.nseg= 1
priden[0].nseg = 8
priden[1].nseg = 2
forsec "tuft" nseg = 3
forsec "secden" nseg = 5
initialseg[0].nseg = 1
initialseg[1].nseg = 5
hillock.nseg = 1
forsec "myelin" nseg=3
}
proc geometry() {local i
soma { L = 25 diam = 20 }
priden[0] { L = .8*370 diam=3.5 }
priden[1] { L = .2*370 diam=3.5 }
forsec "tuftden" { L=350 diam=2.1 }
forsec "secden" { L=500 diam=3.4 }
initialseg[0] { L=.01*20 diam=1.5 }
initialseg[1] { L=.99*20 diam=1.5 }
hillock { L=5 diam(0:1) = soma.diam(0) : initialseg.diam(0) }
forsec "node" { L=1 diam=1 }
forsec "myelin" { L=1000 diam=1.5 }
define_shape()
}
topol()
segments()
geometry()