Search found 43 matches

by hallockk
Thu Aug 19, 2010 10:26 am
Forum: Getting started
Topic: Single, myelinated axon with several nodes and internodes
Replies: 29
Views: 17256

Re: Single, myelinated axon with several nodes and internodes

MechanismStandard was designed as a tool to use for building other tools--specifically, for constructing graphical user interfaces such as the Cell Builder. As such, it has certain properties that are particularly useful in that context (i.e. machine-generated code that is written to ses files), bu...
by hallockk
Wed Aug 18, 2010 3:43 pm
Forum: Getting started
Topic: Single, myelinated axon with several nodes and internodes
Replies: 29
Views: 17256

Re: Single, myelinated axon with several nodes and internodes

MechanismStandard was designed as a tool to use for building other tools--specifically, for constructing graphical user interfaces such as the Cell Builder. As such, it has certain properties that are particularly useful in that context (i.e. machine-generated code that is written to ses files), bu...
by hallockk
Wed Aug 18, 2010 10:46 am
Forum: Getting started
Topic: Single, myelinated axon with several nodes and internodes
Replies: 29
Views: 17256

Re: Single, myelinated axon with several nodes and internodes

ted wrote:Are you following an example obtained from ModelDB, or somewhere else, or is there some other reason for using MechanismStandard?
I used the GUI interface to build my model so I assumed it's the default; why might that be a problem?
by hallockk
Wed Aug 18, 2010 9:28 am
Forum: Getting started
Topic: Single, myelinated axon with several nodes and internodes
Replies: 29
Views: 17256

Re: Single, myelinated axon with several nodes and internodes

Your clue will be in the hoc statement that changes the params of axon1[9]. Below is what I think is the relevant code, but I don't see the problem: tobj = new CellBuildSection("axon1",9, 0, tobj, 1) slist.append(tobj) tobj.parent=slist.object(10) { tobj = new MechanismStandard("pas&...
by hallockk
Tue Aug 17, 2010 1:19 pm
Forum: Getting started
Topic: Single, myelinated axon with several nodes and internodes
Replies: 29
Views: 17256

Re: Single, myelinated axon with several nodes and internodes

I'm still working on this model. I currently have the following topology: lead-node1-axon1-axon1[1]-axon1[2]-axon1[3]-axon1[4]-axon1[5]-axon1[6]-axon1[7]-axon1[8]-axon1[9]-node2-axon2. node1 and node2 are HH nodes that are 10 micrometers in length with everything else being passive. Each axon1 secti...
by hallockk
Mon Aug 16, 2010 10:40 am
Forum: Getting started
Topic: Model axon
Replies: 3
Views: 2420

Re: Model axon

Thanks! Doing it one pulse at a time let me fix the problems.

Do you have any recommended capacitance and conductance values for myelinated axons?
by hallockk
Fri Aug 06, 2010 9:10 am
Forum: Getting started
Topic: Model axon
Replies: 3
Views: 2420

Model axon

I have a question about a model I'm building. My model is an 1000 micron axon followed by a 10 micron node; the axon has passive cable properties while the node has HH properties, but it doesn't appear that the node is firing regardless of what current I put in (using the ipulse1 PointProcess). Here...
by hallockk
Wed Aug 04, 2010 1:38 pm
Forum: Getting started
Topic: Single, myelinated axon with several nodes and internodes
Replies: 29
Views: 17256

Re: Single, myelinated axon with several nodes and internodes

Thanks. I tried to load the models in brill77 and received the following error: nrniv: hoc_sf_ not declared at the top level in pointman.hoc near line 30 external hoc_sf_ ^ xopen("pointman.hoc" ) execute1("{xopen("pointman.hoc")}" ) load_file("pointman.hoc" ) ...
by hallockk
Wed Jul 28, 2010 4:39 pm
Forum: Getting started
Topic: Single, myelinated axon with several nodes and internodes
Replies: 29
Views: 17256

Re: Single, myelinated axon with several nodes and internodes

Thanks. Right now, I'm looking for something extremely simple for me to compare my basic models with. I'd like a to find a single axon with passive internodes and HH nodes that fire if the voltage change is high enough. I'd like to tackle additional biological complexity later, but for now, simple i...
by hallockk
Mon Jul 26, 2010 4:08 pm
Forum: Getting started
Topic: Single, myelinated axon with several nodes and internodes
Replies: 29
Views: 17256

Single, myelinated axon with several nodes and internodes

Is there a good example of a myelinated axon model that's available for me to work through?

Thanks,

Kevin
by hallockk
Mon Jul 26, 2010 1:33 pm
Forum: Getting started
Topic: Compiling Ipulse1
Replies: 2
Views: 2037

Re: Compiling Ipulse1

Thanks! I put the pulses in the folder with my SES files, compiled them, and they load when the SES file is opened.

Kevin
by hallockk
Fri Jul 23, 2010 9:12 am
Forum: Getting started
Topic: Compiling Ipulse1
Replies: 2
Views: 2037

Compiling Ipulse1

Hi everyone, I'm using Neuron 7.1 on my Windows computer. I'm trying to install Ipulse1 & Ipulse2, the regular pulsing MOD files that can be downloaded from the Neuron website, but must be doing something wrong. The files are currently stored in C:\nrn71\bin\pulsedistrib and I have the compiler ...