Search found 81 matches
- Tue Aug 18, 2009 10:29 am
- Forum: Adding new mechanisms and functions to NEURON
- Topic: problems with cvode, at_time and something else
- Replies: 13
- Views: 6623
Re: problems with cvode, at_time and something else
Hi, This is my current iteration: TITLE Mock stochastic voltage-dependent sodium channel : : Written by Patricio Orio, Ago 2009 : NEURON { POINT_PROCESS stNav2 USEION na READ ena WRITE ina RANGE N, No, Po, ina, next_ev, vlast } UNITS { (mA) = (milliamp) (mV) = (millivolt) } PARAMETER { N = 100 gu = ...
- Fri Aug 14, 2009 8:39 pm
- Forum: Adding new mechanisms and functions to NEURON
- Topic: problems with cvode, at_time and something else
- Replies: 13
- Views: 6623
Re: problems with cvode, at_time and something else
Thanks!
I'll try to figure it out and if I succeed I'll post the code.
I'll try to figure it out and if I succeed I'll post the code.
- Fri Aug 14, 2009 1:20 pm
- Forum: Adding new mechanisms and functions to NEURON
- Topic: problems with cvode, at_time and something else
- Replies: 13
- Views: 6623
Re: problems with cvode, at_time and something else
Thanks a lot for the answer. It's not a big deal to make it a point process, but it's been hard to find good documentation about NET_RECEIVE blocks and WATCH (by 'good' documentation I mean an explanation of the commands in the way it is found for hoc commands in NEURON's help files). Where can I fi...
- Fri Aug 07, 2009 5:40 pm
- Forum: Adding new mechanisms and functions to NEURON
- Topic: problems with cvode, at_time and something else
- Replies: 13
- Views: 6623
problems with cvode, at_time and something else
Hi, This is a topic I take to the surface from time to time. I want to simulate stochastic single channels from nmodl code instead of using the channel builder and the associated hoc code (I'm not going to discuss the reasons of my choice here). I have successfuly written the mod file for this simul...
- Thu Jun 25, 2009 8:57 am
- Forum: MSWin
- Topic: cannot review shell's command history!
- Replies: 7
- Views: 17430
Re: cannot review shell's command history!
Now this is funny: * I installed NEURON in a 32-bit WinXP Virtual machine (within my 64-bit environment), and the things works! (i.e., previous commands appear when I press 'UP') * Back in the 64-bit WinXP, I launched the xrvt terminal and again the command history can be properly reviewed. So the p...
- Wed Jun 24, 2009 4:02 pm
- Forum: MSWin
- Topic: cannot review shell's command history!
- Replies: 7
- Views: 17430
cannot review shell's command history!
Just like it sounds. I press the UP arrow key and I only get a beep or error sound. Sometimes I make preliminary simulations from within the command shell, and re-typing everything may get tedious. Is there some kind of rxvt shell configuration that may be wrong? (something related to keyboard layou...
- Mon Mar 09, 2009 3:49 pm
- Forum: MSWin
- Topic: windows in x64 mode
- Replies: 2
- Views: 3889
Re: windows in x64 mode
Hi, After some months, I want to get back to this. I've discovered that there a 64 bit version of mingw: http://mingw-w64.sourceforge.net/. I've compiled it (mingw64, not neuron) under cygwin but I really don't know how to continue. I don't know much about compiling, less about cross compiling and I...
- Thu Nov 06, 2008 8:40 am
- Forum: MSWin
- Topic: windows in x64 mode
- Replies: 2
- Views: 3889
windows in x64 mode
Hi, I'm working with Windows XP x64 edition. I've noticed that neuron runs in 32bit modein this OS, and it is no wonder because of the lack of a native 64-bit cygwin. Because of that, I also assume that I could not compile a native 64-bit version of neuron using cygwin. Is there any other option to ...
- Fri Jul 11, 2008 6:22 pm
- Forum: Adding new mechanisms and functions to NEURON
- Topic: Random noise
- Replies: 4
- Views: 5997
Re: Random noise
Clear as water.
Thanks a lot.
Thanks a lot.
- Fri Jul 11, 2008 4:53 pm
- Forum: Adding new mechanisms and functions to NEURON
- Topic: Random noise
- Replies: 4
- Views: 5997
Re: Random noise
OK, thanks for the tip. Now it works with fixed timestep. Two more questions: 1) Suddenly I realized that the correct way to go should be something like noise = 1(mA/cm2) * normrand(0,D*sqrt(dt)) n' = (-n + noise)/tau i.e., correcting the variance by the dt. Would that make it more appropriate for a...
- Thu Jul 10, 2008 3:44 pm
- Forum: Adding new mechanisms and functions to NEURON
- Topic: Random noise
- Replies: 4
- Views: 5997
Random noise
Hi, I'm trying to study the effect of different kinds of noise in a simple one-compartment model, and I'm having some problems: After succesfully playing with a simple white noise, now I want to model an Ornstein-Uhlenbeck process, which in the practice is a low-pass filtered white noise (isn't it?)...
- Thu Jul 10, 2008 3:19 pm
- Forum: Other questions
- Topic: introduce a specific type of noise
- Replies: 3
- Views: 3740
Re: introduce a specific type of noise
Why don't you just do something like
instead of 'manually' adding the random value in a separate procedure?
Code: Select all
DERIVATIVE states {
rates(v)
dpz=whatever-random-function-you-want
UNITSOFF
m' = (m_inf - m + dpz)/0.1
UNITSON
}
- Mon Jun 09, 2008 9:29 am
- Forum: Getting started
- Topic: psection-like dump of global parameters
- Replies: 9
- Views: 6024
- Fri Jun 06, 2008 11:33 am
- Forum: Getting started
- Topic: psection-like dump of global parameters
- Replies: 9
- Views: 6024
Well, it was kind of easy. Modified the mview1.hoc file: - Added textp to one of the public statements - Inserted the following code: proc textp() {local i localobj file file = new File() file.wopen($s1) for i=0, display.top.count-1 { textout(file, display.top.object(i)) } file.close() } Then, I hav...
- Thu Jun 05, 2008 11:49 am
- Forum: Getting started
- Topic: psection-like dump of global parameters
- Replies: 9
- Views: 6024
Thanks Ted for your answer. ModelView does exactly what I want. Well, it probably does much more than what I need -but I can handle that. Now my problem is that I want to do it programatically (i.e., write a hoc code that will generate a text file with all the info that Model View gives). I dug into...