The name is absent



144

Table B.3: Channel model and kinetics that allow weakly excitable dendrites. For G(x},
x is measured in μm from the soma. The model for ⅛a is divided into two components,
proximal and distal, which are denoted 1кА(ргох) and lKA(dist), respectively. Some of the
gating variables in this model have time constants τ that depend on temperature T via
a so-called Qw factor. The temperature is set to T = 35oC to match the value used in
(Migliore et al., 1999).

Gating Var.

m

0.4(υ+30)                                    O124(υ + 3O)

1—e×p(-(v-t-30)∕7.2)                               exp{(υ+30)∕7.2)-ɪ

h
i

0.03(υ + 45)                                           0.01(υ-f-45)

1— exp(- (υ÷45)∕1.5)                            exp((υ+45)∕l .5) -1

exp(0.45(∙υ -f- 60))                                exp(0.09(υ + 60))

nDR
τlprox
⅛rox
ndist
⅛st

exp(-0.11(υ — 13))                            exp(-0.08(∙u — 13))

exp(-0.038(1.5 + 1+exp⅛0∕5> ))( ^ - ɪl) exp(-0.038(0.825 + 1+cxp^+40∕5) ))<» - ɪɪ)
eχp(0.11(υ + 56))

exp(-0.038(1.8 + 1+exp(i+40∕5⅛ ))(■> + ɪ)     exp(-0.038(0.7 + 1+-i⅛ ))(v + ɪ)

exp(0.11(v + 5β))


Ionic Current

Gating Variables

G(x) (mS∕cm2)

E (mV)

ʃleak

0.3

-65

INa

m3, h, i

32

55

Udr

10

-90

^A(pτt>χ∙)

Uprox1 Iprox

∫48(1 +

I0

x∕100)

x ≤

X >

IOO μm

100 μm

-90

ʃʌʌ(dɪst)

Udist1 Idist

ʃθ

(48(1 +

a√100)

x ≤

x >

100 μm

100 μm

-90

B

Gating Var.

T

Qio factor

m

0.5
α+∕3

a
Ot+β

2(T-24)∕I0

h

0.5

____________1____________

2(T-24)∕1O

α+∕3

l+exp((∙υ+50)∕4)

3×104ff

l+0.5exp((υ÷58)∕2)

l+α
C∩z□

l+exp((υ÷58)∕2)

«DR

ou∕j

!+ɑ

1
l÷α

Ti

4/3

1

5(T-24)∕10

, l,prox
^prox

l + cι
O 2 4__—_____

'j∙6 ɪ l÷exp(0.2-υ∕22)

]ʌɑ

T+α

7⅛ist

2/3
l÷α

1
l-∣j-α
l+α

5(T-24)∕10

^dɪst

υ∙^ ɪ l÷exp(0.2-v∕22)



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