Search found 17 matches

by chalspark
Sat Sep 24, 2011 2:51 am
Forum: Anatomically detailed models
Topic: Simple compartment neuron model
Replies: 0
Views: 1693

Simple compartment neuron model

Hello everyone. I have question about making computational neuron models. What is exact input impedance value or range for simple and full morphology models? In my experience, input impedance matching was most important in order to change full morphology neuron model to simple neuron model. I think ...
by chalspark
Tue Aug 02, 2011 4:10 am
Forum: Modeling networks
Topic: Modeling network in difference v_init
Replies: 1
Views: 2062

Modeling network in difference v_init

Hello. I tried to make network model between CA1 neuron model and my neuron model. 1. Copy the source that Migliore CA1 pyramidal neuron model in ModelDB. 2. Modify the source(Migliore CA1 Pyramidal NEURON source, remove Clamp) 3. Make Template my neuron model begintemplate myec public exp2, soma cr...
by chalspark
Tue Jul 12, 2011 8:17 pm
Forum: Optimization
Topic: How to fitting neuron output?
Replies: 5
Views: 7984

Re: How to fitting neuron output?

I used several channels in modelDB to optimize simulation result. Channel conductance was changed for result. So, conductance values not equal to original model and also channels were mixed by few models. Finally, I get the similar result. but I have a question. Are these conductances reliable? Are ...
by chalspark
Sat Jul 09, 2011 1:09 am
Forum: Optimization
Topic: How to fitting neuron output?
Replies: 5
Views: 7984

Re: How to fitting neuron output?

Thanks for your answer. I don't have biology experiment result. Just i have graph result in the paper. Multiple Run fitter must need experiment result data. Is it possible to make neuron model with graph result in paper? How could i transfer graph result to file? I am novice user. If my question was...
by chalspark
Fri Jul 08, 2011 12:28 pm
Forum: Optimization
Topic: How to fitting neuron output?
Replies: 5
Views: 7984

How to fitting neuron output?

Hello. I would like to know about how to fit neuron output through biology experiment result. Actually, I want to made slow depolarization and delayed spiking neuron model. But it isn't easy to me. I used many neuron model in modelDB. but, I couldn't success. So, I would like to know that is it poss...
by chalspark
Tue Jun 28, 2011 1:27 am
Forum: Adding new mechanisms and functions to NEURON
Topic: STDP
Replies: 9
Views: 6551

Re: STDP

We should turn on the value of LTP and LTD. These values are turns off basically in the mod file. sy = new ExpSynSTDP(0.5) sy.d = 1 : LTD sy.p = 1 : LTP This is my example source code. load_file("nrngui.hoc") create soma soma { nseg = 1 diam = 18.8 L = 18.8 Ra = 123.0 insert hh } proc init() { Vrest...
by chalspark
Tue May 03, 2011 2:10 am
Forum: Adding new mechanisms and functions to NEURON
Topic: Spike Timing Problem
Replies: 3
Views: 2096

Re: Spike Timing Problem

Yes, Ted. It's very similar. set the second spike time from without IPSP stimulate simulation. ( I use IClamp for inject similar IPSP. ) for i=0:windows set IPSP.del = second spike time + ( i * (Inter Spike Inter/windows)) set IPSP.amp and IPSP.dur run a simulation observe the third spike end this i...
by chalspark
Mon May 02, 2011 12:23 am
Forum: Adding new mechanisms and functions to NEURON
Topic: Spike Timing Problem
Replies: 3
Views: 2096

Spike Timing Problem

Hello. Ted. I always thank you for your answer. I have a critical problem. My simulation conditions are below. - Two IClamps - Step Current(1000ms) - IPSP Current(5ms, different delay each simulation after 2nd spike) - One Izap Stimulation - Sinusoidal Conductance(1.5nS, 5hz) - full morphology neuro...
by chalspark
Thu Oct 28, 2010 2:49 am
Forum: Adding new mechanisms and functions to NEURON
Topic: How do I control the rebound current amplitude?
Replies: 1
Views: 1841

How do I control the rebound current amplitude?

Hello, Ted I always thank for your answers. I've got a some question. I wonder about "how do i control the rebound current amplitude?" I used this h-channel model. TITLE I-h channel from Magee 1998 for distal dendrites UNITS { (mA) = (milliamp) (mV) = (millivolt) } PARAMETER { v (mV) ehd (mV) celsiu...
by chalspark
Thu Oct 28, 2010 2:22 am
Forum: OS X
Topic: command not found
Replies: 10
Views: 9984

Re: command not found

ted wrote:Answered in the FAQ list under "I can't get mod files to compile." See http://www.neuron.yale.edu/neuron/docs
Thanks! Ted! it has been work well!!
by chalspark
Wed Oct 27, 2010 11:38 am
Forum: OS X
Topic: command not found
Replies: 10
Views: 9984

command not found

hello. I have benn setup NEURON 7.1 version dmg file. (my os version is mac osx 10.6.4) and I try to drop down myproject folder in mknrndll for compiles. I have got this error message. (this project is well done in windows version.) /Applications/NEURON-7.2/nrn/umac/bin/nrnivmodl: line 149: make: co...
by chalspark
Wed Aug 04, 2010 3:50 pm
Forum: MSWin
Topic: Some problem in Windows server 2008 R2
Replies: 5
Views: 2912

Re: Some problem in Windows server 2008 R2

ted wrote:There aren't enough clues for me to discover the cause of the problem you are having.

Where did you expand izap.zip? Did you expand it into a subdirectory of c:\nrn7.1, or did you expand it into some other location?
Thanks Ted. I did expand Izap.zip in c:\nrn7.1.

I hope to solve this problem.
by chalspark
Sun Aug 01, 2010 2:25 pm
Forum: MSWin
Topic: Some problem in Windows server 2008 R2
Replies: 5
Views: 2912

Re: Some problem in Windows server 2008 R2

Thanks for your quick answer! Did you compile the mod file? Yes, I have done compile sucessfuly. Exactly what did you do to "execute initizap.hoc"? I had double clik initizap.hoc file. So, a few windows come out throught this windows I can check sinewave in windows 7. But 2008 R2 isn't. What is the ...
by chalspark
Sat Jul 31, 2010 12:56 pm
Forum: MSWin
Topic: Some problem in Windows server 2008 R2
Replies: 5
Views: 2912

Some problem in Windows server 2008 R2

Hi, all I have finished installation Neuron 7.1 at Windows server 2008 R2. I think that it is not a problem at all. because I used Neuron 7.1 at Windows 7. But, I met some problem. some project source isn't work! example) I execute initizap.hoc. then, Neuron windows come out and just disappear. nrng...
by chalspark
Tue Jun 29, 2010 8:48 pm
Forum: The GUI
Topic: how stimulate the sine wave in PointProcessManager(GUI)
Replies: 5
Views: 7875

Re: how stimulate the sine wave in PointProcessManager(GUI)

Hello, Ted I have solved this problem. but There are still a little problem. I try remove NEURON 7.1 and then I have start from the beginning. I had completed setup and copied Izap directory(c:\nrn71\chals\Izap). then I try modlunit,mknrndll. I had success Izap setup. After execute initizap.hoc, I c...