Search found 43 matches

by hallockk
Tue Jun 14, 2011 8:41 am
Forum: Getting started
Topic: Channel firing without a current injection
Replies: 3
Views: 1768

Re: Channel firing without a current injection

I'd like to be able to open an HH channel without externally injecting current. Maybe have a channel that opens and closes at specific time intervals? I haven't spent much time looking at channels that open based on concentration changes; maybe I could fluctuate an external ion concentration as a wa...
by hallockk
Wed Jun 01, 2011 3:28 pm
Forum: Getting started
Topic: Channel firing without a current injection
Replies: 3
Views: 1768

Channel firing without a current injection

Several of my lab members have asked if there's a way in NEURON to fire some HH channels without injecting current using something like Iclamp. Is there?
by hallockk
Mon Apr 11, 2011 10:53 am
Forum: Other questions
Topic: Expt background leakage currents for human nodes of Ranvier
Replies: 1
Views: 925

Expt background leakage currents for human nodes of Ranvier

I'm trying to locate experimental references to the background leakage currents for human nodes of Ranvier. Other animals would provide a ballpark figure as well. Any suggestions?

Thanks.
by hallockk
Wed Apr 06, 2011 9:06 am
Forum: Other questions
Topic: HOC file undefines section?
Replies: 7
Views: 1441

Re: HOC file undefines section?

ted wrote:Actually this is the source of the problem. If a CellBuilder is saved to a ses file with Continuous Create off, then when you read that ses file in the future the CellBuilder will be recreated, but it will not create any sections.
Thanks! Now back to modeling.
by hallockk
Tue Apr 05, 2011 10:32 am
Forum: Other questions
Topic: HOC file undefines section?
Replies: 7
Views: 1441

Re: HOC file undefines section?

I haven't figured out the source of the problem, but if I turn on Continuous Create before saving the file I can reopen the file without the posted error. This at least provides me a workaround.
by hallockk
Tue Apr 05, 2011 9:13 am
Forum: Other questions
Topic: HOC file undefines section?
Replies: 7
Views: 1441

Re: HOC file undefines section?

I've identified the line of code in the HOC file that is the culprit: CellBuild[0].continuous = 0 I confirmed this by turning off Continuous Create using the GUI (and without running a HOC file) and save the file with it remaining off. I get the same error when I try to load modified file using the ...
by hallockk
Mon Apr 04, 2011 4:25 pm
Forum: Specific models
Topic: From ModelDB: Hu_etal_AIS_Nav1p6_and_1p2_2009
Replies: 5
Views: 11930

Re: From ModelDB: Hu_etal_AIS_Nav1p6_and_1p2_2009

That works fine. Is there any way to load it from what I've downloaded on my computer? The init.hoc works, but the panel it brings up only gives me errors when I click its buttons.
by hallockk
Mon Apr 04, 2011 2:12 pm
Forum: Other questions
Topic: HOC file undefines section?
Replies: 7
Views: 1441

Re: HOC file undefines section?

I don't know why running a separate HOC file, and then saving the file, would prevent me from reopening the file. I thought that running a HOC file wouldn't permanently alter the SES file. The sequence of events I'm wondering about are: Open SES file Save SES file Close SES file Restart NEURON Open ...
by hallockk
Mon Apr 04, 2011 1:08 pm
Forum: Specific models
Topic: From ModelDB: Hu_etal_AIS_Nav1p6_and_1p2_2009
Replies: 5
Views: 11930

Re: From ModelDB: Hu_etal_AIS_Nav1p6_and_1p2_2009

Hmmm...I'm using Windows XP and Neuron 7.1; what do you do to get it to autolaunch?
by hallockk
Tue Mar 29, 2011 4:50 pm
Forum: Specific models
Topic: From ModelDB: Hu_etal_AIS_Nav1p6_and_1p2_2009
Replies: 5
Views: 11930

From ModelDB: Hu_etal_AIS_Nav1p6_and_1p2_2009

Has anyone tried to run the Hu et al. model? I changed the working directory to the Hu folder, compiled their mechanisms into a DLL, loaded the init.hoc file using the File menu, and it brings up a window with three buttons; one for each model. Clicking on each button gives me an error similar to: n...
by hallockk
Tue Mar 29, 2011 3:35 pm
Forum: Other questions
Topic: HOC file undefines section?
Replies: 7
Views: 1441

HOC file undefines section?

I am using a HOC file to modify an axon model with many sections, one of which is named "lead". I load up the DLL and the SES file using NEURON's File menu, and the load the HOC file using the xopen command line function. The SES, DLL, and HOC files all run fine, but if I save the SES file after run...
by hallockk
Tue Mar 15, 2011 4:48 pm
Forum: Other questions
Topic: NEURON deleting files
Replies: 10
Views: 2169

Re: Maybe MSWin deleting files?

Did it in fact eliminate the problem? I switched it so that double-clicking would open the file in WordPad (a text editor). This prevents me from forgetting to open SES files using the menu option. When the load session menu option is used, the files can be saved under the same name, which takes ca...
by hallockk
Tue Mar 15, 2011 3:58 pm
Forum: Other questions
Topic: NEURON deleting files
Replies: 10
Views: 2169

Re: Maybe MSWin deleting files?

Notice that I have changed the "Subject" of my post to reflect what may really be happening. More about this below. This seems to be what's happening. If I use "load session" from the File menu, I can repeatedly use the same file name to save a file. It's definitely a Windows "feature." As you sugg...
by hallockk
Tue Mar 15, 2011 6:50 am
Forum: Other questions
Topic: NEURON deleting files
Replies: 10
Views: 2169

Re: NEURON deleting files

Thanks for looking into this. First, exactly what version of NEURON are you using (what does the first line of NEURON's "welcome message" say?), and on what platform? NEURON -- Release 7.1 (359:7f113b76a94b) 2009-10-26 Duke, Yale, and the BlueBrain Project -- Copyright 1984-2008 See http://www.neuro...
by hallockk
Mon Mar 14, 2011 3:32 pm
Forum: Other questions
Topic: NEURON deleting files
Replies: 10
Views: 2169

Re: NEURON deleting files

After several months of using neuron without this problem reoccuring, it happened again so I'll try to answer your questions. From the GUI, I open and save a new SES file (CrashTest.ses). I make no changes to the file after it is saved. I close and reopen the file. Please define "when NEURON crashes...