Search found 35 matches

by Sun Xiaoqing
Mon Sep 30, 2019 7:53 am
Forum: Getting started
Topic: monitor the attenuation of the peak value of the action potential with distance from the ion channel
Replies: 9
Views: 1926

Re: monitor the attenuation of the peak value of the action potential with distance from the ion channel

Dear Ted, I truly appreciate your timely help, I really learned a lot from your expertise reply. I've successfully built my model (one with axon implemented with hh mechanism, the other one with passive conduction). My next step is to First, construct a model with soma(hh), axon(pas). Next, apply a ...
by Sun Xiaoqing
Sun Sep 29, 2019 7:34 am
Forum: Getting started
Topic: monitor the attenuation of the peak value of the action potential with distance from the ion channel
Replies: 9
Views: 1926

Re: monitor the attenuation of the peak value of the action potential with distance from the ion channel

Thank you for your reply! Sorry for my unclear statements and purposes. What I'm trying to do is first I need to construct a multi-compartment HH model and then use LFPsim to measure the extracellular potential along the axon. I want to see the extracellular potential generated by the transmembrane ...
by Sun Xiaoqing
Sat Sep 28, 2019 11:19 am
Forum: Getting started
Topic: monitor the attenuation of the peak value of the action potential with distance from the ion channel
Replies: 9
Views: 1926

Re: monitor the attenuation of the peak value of the action potential with distance from the ion channel

I searched the ModelDB, but I didn't find suitable AP initialize mechanism(change ion concentration or voltage gradient at ion channel), maybe my searching was not enough. If anyone knows some examples that I can reference to, please tell me. Thanks in advance.
by Sun Xiaoqing
Sat Sep 28, 2019 10:53 am
Forum: ModelDB and other online sources of models
Topic: Model 3808 can't use Create Your Own\Single Cell
Replies: 1
Views: 4773

Model 3808 can't use Create Your Own\Single Cell

Hi, I find that the model 3808: https://senselab.med.yale.edu/ModelDB/ShowModel.cshtml?model=3808&file=/MyFirstNEURON/manual.htm#tabs-1 The Create Your Own\Single Cell function was not usable. Error messages were: oc>C:\nrn\bin\nrniv.exe: sAmpa :not right number of subscripts near line 1 {my_fir...
by Sun Xiaoqing
Sat Sep 28, 2019 9:15 am
Forum: Getting started
Topic: monitor the attenuation of the peak value of the action potential with distance from the ion channel
Replies: 9
Views: 1926

monitor the attenuation of the peak value of the action potential with distance from the ion channel

Good day, I'm implementing a simple unmyelinated axon, I want to use LFPsim method to measure the voltage potential at some different compartments. My purpose is to monitor the attenuation of the peak value of the action potential with distance from the ion channel. My question is: 1. How can I appl...
by Sun Xiaoqing
Fri Sep 27, 2019 11:26 pm
Forum: ModelDB and other online sources of models
Topic: Model 135839 error issue
Replies: 1
Views: 1158

Model 135839 error issue

Hi, I'm trying to use ModelDB:135839. fter compiling the mod file and clicked on the mosinit.hoc, I got this error message: C:\nrn\bin\nrniv.exe: na is not a MECHANISM in Rapid_rising_somatic_spike_soma_axon.hoc near line 105 forall insert na xopen("Rapid_risi...") execute1("{xopen(&q...
by Sun Xiaoqing
Tue Sep 24, 2019 3:28 am
Forum: MSWin
Topic: Downloading NEURON5.9
Replies: 1
Views: 3396

Downloading NEURON5.9

Hi, I'm trying to download the old version of NEURON5.9 in order to run a legacy model, but I'm not quite sure about which folder should I download from: https://neuron.yale.edu/ftp/neuron/versions/v5.9/ By the way, I'm using Win10 and also which version of Python should I install, Python 3.7 or Pyt...
by Sun Xiaoqing
Sun Sep 22, 2019 9:42 am
Forum: Getting started
Topic: reuse modelDB:84589
Replies: 2
Views: 1151

Re: reuse modelDB:84589

I also got another confusion that when I double click on eaps\cell\d151.hoc, I got these error messages: NEURON -- VERSION 7.7.2 7.7 (2b7985ba) 2019-06-20 Duke, Yale, and the BlueBrain Project -- Copyright 1984-2018 See http://neuron.yale.edu/neuron/credits Could not open C:/Users/sunxi/AppData/Roam...
by Sun Xiaoqing
Sun Sep 22, 2019 2:04 am
Forum: Getting started
Topic: intracellular sodium ion accumulation
Replies: 2
Views: 1107

Re: intracellular sodium ion accumulation

When browsing the forum, I noticed that combining different parts from other models to create a new model wasn't easy, so if I could modify the original code from Extracellular Action Potential Simulation: https://senselab.med.yale.edu/ModelDB/ShowModel.cshtml?model=84589#tabs-1 the attempt to creat...
by Sun Xiaoqing
Sun Sep 22, 2019 1:00 am
Forum: Getting started
Topic: reuse modelDB:84589
Replies: 2
Views: 1151

reuse modelDB:84589

Hi, I'm trying to reuse the Extracellular Action Potential Simulation from: https://senselab.med.yale.edu/ModelDB/ShowModel.cshtml?model=84589#tabs-1 It was implemented in 2006, and some code didn't work right now. I also have tried to create my own model by combining different parts from the other ...
by Sun Xiaoqing
Sun Sep 22, 2019 12:19 am
Forum: MSWin
Topic: Cannot find executable python3 or python
Replies: 2
Views: 2835

Re: Cannot find executable python3 or python

Thanks for your advice, it works now!
by Sun Xiaoqing
Sat Sep 21, 2019 12:44 am
Forum: Getting started
Topic: intracellular sodium ion accumulation
Replies: 2
Views: 1107

intracellular sodium ion accumulation

Hi, I'm trying to simulate the intracellular electric field gerneated by the action potential propagating along the myelinated axon with the influence of sodium ion accumulation at the Node of Ranvier. For the uniform myelinated axon and its initialization, I used the cable.hoc and init.hoc from: ht...
by Sun Xiaoqing
Mon Sep 16, 2019 10:54 pm
Forum: MSWin
Topic: Cannot find executable python3 or python
Replies: 2
Views: 2835

Cannot find executable python3 or python

Good day, I'm using Win10 64-bit, and I've already installed NEURON and Anaconda. When I double click nrniv_python from Start Menu, this error message showed: Could not open C:/Users/sunxi/AppData/Roaming/Microsoft/Windows/Start Menu/Programs/Anaconda3 (64-bit)/Anaconda Prompt.lnk Could not open C:/...
by Sun Xiaoqing
Sun Sep 15, 2019 11:09 am
Forum: Suggestions and Feedback
Topic: can't load mknrndll issue
Replies: 9
Views: 3446

Re: can't load mknrndll issue

Thank you for the response. Now I've changed to another computer which is also Win10 and downloaded nrn file in the C:\ , and the path issue was solved. When I typed these code in cmd, these error message occurred: Microsoft Windows [版本 10.0.17763.737] (c) 2018 Microsoft Corporation。保留所有权利。 C:\Users...