www.neuron.yale.edu

Hi Ted, I am not sure I was well understood. I hope you do not mind if I clarify. If periaxonal delta represents its radius, then the first layer of the myelin sheath is at a distance delta from the axolemma. Notwithstanding the radius of the myelin sheath (considering it as collapsed and just outsi...

I would first like to ask how Vext is calculated at a given node in a stretch of cable (of defined length and diameter) with one layer of extracellular inserted. Is Vext generated from the Im of that node multiplied by its lateral surface area, xraxial and length? Im here would be subtracted by the ...

Dr. Hines,

Compilation is complete and NEURON is running. Thank you for your help.

Best regards,
Charles

I downloaded nrniv10.ico as instructed from the hg repository. I re-extracted the tar.gz and copied the file into ../src/mswin. A new related error arises, consisting of "icon file `../../src/mswin/nrniv10.ico' does not contain icon data." Please see the relevant terminal output below. Tha...

Dr. Hines, I am using the latest repository codes for IV (07.10.2014) and nrn (nrn-7.3.rel-1173). Compilation of IV occurs without a hitch. Configuration of nrn works, but making it does not. I tried a few different nrn configurations and essentially one type of error arises at the make level: the a...

Hello Dr. Hines,

I hope you do not mind my "manually" bumping this post.

Perhaps you may suggest me a specific cygwin subpackage I could downgrade to in the meantime, which would allow this problem to be solved?


Thanks!
Charles

Replacing #if defined(__SIZEOF_POINTER__) && __SIZEOF_POINTER__ > __SIZEOF_LONG__ with #if 1 || (defined(__SIZEOF_POINTER__) && __SIZEOF_POINTER__ > __SIZEOF_LONG__) in cursor.cpp (iv/src/lib/IV-Win) allowed cursor.lo to be made. Running sizeof.cpp as instructed yielded the same valu...

Hello, I am having trouble compiling InterViews (iv-18) with cygwin on Windows 8.1. The problem seems related to the recipe for cursor.lo (cursor.cpp) contained in src/lib/IV-Win. Configuration seems to run without a hitch. The problem arises at the make level. Please see below: CCo@CC ~/iv $ ./conf...

Hello, In NEURON 7.3, inserting extracellular in a given section with only the following parameters defined, xraxial[0], xg[0], xc[0] and e_extracellular leads to a default insertion in the same section of xraxial[1], xg[1] and xc[1] initialized to default values. I would like to implement a strateg...

Hello,

I would like a clear explanation for the rules by which Praxis "returns by itself" when the user sets the "# quad forms" to 0 in the MulRunFitter[0] Optimize Praxis GUI.

I created a bunch of segments that comprise a section with Neuroleucida. I import my morphology into NEURON and implement an nseg strategy based on d_lambda... It is the area of a subset of these bunch of segments that I still wish to obtain. I have understood how to use L: if I want the total lengt...

Hi, Very basic question... still learning how to talk to NEURON... Wondering how to get lengths and areas of segments that are subsections of a section in the oc> prompt. So for example, I wish to know the area of segments 0-5 of a given section that has 100 segments. How would I ask the oc> prompt ...

Yes, well, I'm new at this deeper stuff, so pardon my inexperience. OK so the general idea is to make dt as small as possible? Obviously much smaller than any time interval (of your curve being fitted). But how much smaller? Is there such a thing as "too small and bad"? For example, if usi...

Hi,

When running the MRF (let's say following tutorials 1 and 2). Curious about the relationship between dt (in RunControl) and the error of Brent's Praxis fitting?

Thanks.
-Charles

Hi Ted,

Thank you for the wonderful, complete answer. I am especially grateful for your suggestion to use worst-case (largest) values for Ra and Cm, if pursuing option 1.

-Charles