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A few years ago, I and some of my colleagues started to work on a one dimensional electrodiffusion cable model based on Mori 2007 [A Three-Dimensional Model of Cellular Electrical Activity]. Our mathematical endeavours were successful, but we never tested our equations, since I moved to US to get my...

I have these two new mechanisms (mod files). They compile fine, but when I try to use them, I see this assertion failed bug. Would you please help me understand what is going wrong. TITLE cana Current NEURON { SUFFIX iCaNa USEION na READ nai, nao USEION ca READ cai WRITE ica RANGE ibarna, ica ,cai ,...

Thank you for fixing that problem. I have cloned the source again and recompiled the code. This is the error: if test "i686" = "x86_64" ; then \ x86_64-w64-mingw32-g++ -g -O2 -DCYGWIN -o mos2nrn.exe ../../src/mswin/extra/mos2nrn.cpp ;\ else \ i686-pc-mingw32-g++ -g -O2 -DCYGWIN -...

for some reason your modification of makefile.am do not work even after re-executing the ./build.sh script and re-configuring. I mean still the x86_64 version of mingw tries to compile the code. I changed the makefile to test the i686 version. Still this error appears nrn/src/nrniv/makefile: mos2nrn...

This is my .bashrc: export HOME=/home/keivan export IV="$HOME/neuron/iv" export N="$HOME/neuron/nrn" export CPU="i686" export host_cpu=$CPU export PATH="$HOME:$PATH:/bin:/usr/bin:/usr/sbin" export PATH="$IV/$CPU/bin:$N/$CPU/bin:$PATH" export CPATH=&q...

For some reason nrniv.dll is missing in my mswin-i686 (with cygwin i686, under 64bit version of windows 8.1) build of neuron. Could you please help me to make my own nrniv.dll. PS: currently, gcc-3 is completely removed from the cygwin repositories that causes some errors in compiling nrn. I have by...

Since it is easy to wire two nodes in the model to each other, I made my ephaptic coupling mechanism. // This mechanism is very simple. // It connects two extracellular voltage nodes to each other // with a low resistance wire so that they become a single node (theoretically) // then we connect this...

Today, I spend some time to understand the LinearMechanism by reading the topic that was suggested by Shailesh. It was really enlightening. I wish that information was explained in the documentation. Anyway, as far as I understood, using LinearMechanism, we can add conductance and capacitance betwee...

As far as I know, ephaptic coupling by itself is the sufficient condition for the propagation of action potential from one myocyte to another myocyte. My ephaptic coupling mechanism, however, is unstable. The suggested modifications, as in the xtra mechanism, did not solved the problem. Do you have ...

Thank you Ted, I would test the suggested code and reply soon. Thank you Shailesh for pointing me to that topic. From your NMODL code I would guess that a disk has an equivalent circuit something like this Code: Select all A B o--- ra ---+--- rb ---o | rc | gnd where the A terminal is attached to an...

Thank you Ted. I have changed my code the way you suggested. COMMENT Potential in the Intercalated disk This mechanism should be inserted in the pre-junctional compartment phi_c = A*Rc*Ro*(-dv_pre/dx+dv_post/dx) Keivan Moradi, 2013 ENDCOMMENT NEURON { POINT_PROCESS vDisk POINTER v2, vp1, vp2, vc } U...

I am trying to make a model of cardiac action potential propagation. Ephaptic coupling has a major role in the propagation of action potentials in these cells. In a simple model of ephaptic coupling, the potential in the cleft between two cells should be calculated. In order to do that I have made a...

It is probably too late to answer to this post. Anyway, as far as I have learned about the reaction-diffusion implementation in NEURON 7.3, I am not sure how it can be used in the modeling of dendritic spines since it models ion diffusion along the cable independent of membrane potential. I am also ...

It didn't work too. the error is:

I'm working on a model which has 4 states, as follows: A' = -A/tau1 B' = -B/tau2 C' = -C/tau3 g' = (wC*C + wB*B)*(inf-g)/tau When I use "cnexp" the mechanism compiles but there is error during simulation. When I use "sparse" method I cannot compile the mechanism. When i use "...