www.neuron.yale.edu

While reading other posts I discovered it has to do with the original squid experiments. Thanks for keeping so much information on this site.

I was chatting about this with another researcher and I'd like to check our theory.

melissamou wrote: how does NEURON deal with the thickness of myelin?

If you wanted to add it in, you could do a little programming and include it as part of the calculation for the a diameter.

This is OK for simple models, but it becomes inconvenient if the model is even a little complex. I find that the CellBuilder is great for dealing with subsets, but as soon as I need to deal with individual sections, I have to turn off the CellBuilder's Continuous Create button (this can be done wit...

My mistake. I meant ten sections, not segments. I have the following ten sections that represent one internode: node-internode_section-internode_section[1]-internode_section[2]-internode_section[3]-internode_section[4]-internode_section[5]-internode_section[6]-internode_section[7]-internode_section[...

I have an internode that has 10 segments and all of the segments are in one section. I'd like to be able to change a parameter for the section in the GUI and have it reflected in the values of each segment in the section. I could change it using hoc, but I don't think those changes aren't reflected ...

I have an internodal length that is divided into 10 individual sections. The entire internode is also represented as a subsection. When I change the parameters of the internodal subsection, the parameters of the individual sections do not reflect that change. Is there a way to have the GUI reflect t...

WRT your question-- Unexpected outcomes are the rule rather than the exception in computational modeling--unless one sticks with "safe" models, i.e. so simple that it's easy to guess what they will do (in which case, why bother?). Unexpected outcomes are certainly more likely to produce n...

Indeed, since the advent of Python as an alternative interpreter for NEURON it is probably best to use Python I built a model in Python. It is a single axon with a soma-node-internode-node-internode-etc. pattern. There are twenty-three nodes and twenty-four internodes assembled using the CellBuilde...

They exist, they just aren't displayed in the list. Use the GUI to construct a name that contains the "basename" that you need (e.g. node[0]), then click in the edit field and change the numeric value of the "index" to whatever you like. Thanks. Is there a good place to read up ...

Thanks for all your help! I have a model that is behaving as I'd expect in terms of action potential propagation. When I open the GUI to append certain sections to my Voltage Axis plot (using the Plot What? menu choice), it doesn't show me all of the sections that are present. For example, I'm allow...

The next time it happens I'll note down the exact error message. I posted just in case it was a known bug that I could avoid.

Thanks,

Kevin

I've noticed that sometimes when NEURON crashes, it deletes whatever file is open at the time. Normally this happens when I try to save a file and I get an error that says "File not available of for saving", or something like that. After that warning, whenever close the file or NEURON cras...

Thanks for the advice! I was reading through one of the examples from ModelDB (I think) and it expressed a concern about "end and stimulation" effects that occur in shorter neurons so the authors used at least twelve nodes and internodes in their simulation. How serious is this problem? Wo...

One last point: it looks like you are developing models inside NEURON's installation tree. This is not a good idea. If and when you install a new version of NEURON, you're going to use NEURON's own uninstaller to get rid of the old version, and one of the things it is going to try to do is delete t...