Search found 70 matches

by Krishna Chaitanya
Mon May 14, 2018 9:44 am
Forum: Parallel NEURON
Topic: Network Parallelization
Replies: 5
Views: 1594

Network Parallelization

Hi, I have followed your example of ring network in the paper "Translating Network Models to Parallel Hardware". I see that for the NetStim connection to the first cell is made through NetCon and the rest of the cells are connected through gid_connect. I am not sure why NetCon was used for making co...
by Krishna Chaitanya
Wed Apr 25, 2018 5:22 am
Forum: Modeling networks
Topic: net_send call in NET_RECEIVE
Replies: 4
Views: 1796

Re: net_send call in NET_RECEIVE

Hi,

Can anyone kindly help me overcome this problem?

Please let me know how to solve this.

Thank you.
by Krishna Chaitanya
Thu Apr 19, 2018 4:05 am
Forum: Modeling networks
Topic: net_send call in NET_RECEIVE
Replies: 4
Views: 1796

Re: net_send call in NET_RECEIVE

Hi Ted, Thank you very much for explaining clearly. I have changed the name of the mod file as you have told. I understood that in the NET_RECEIVE block, I cannot give two WATCH statements without the net_send statement to force the threshold for bringing the membrane potential back to the resting v...
by Krishna Chaitanya
Tue Apr 17, 2018 4:43 am
Forum: Modeling networks
Topic: net_send call in NET_RECEIVE
Replies: 4
Views: 1796

net_send call in NET_RECEIVE

Hi, I am working with a mod file with all the parameters and values to simulate a simple point process model. I find that I have to call net_send(0,1) twice for the mod file to work. The initial call net_send(0,1) in the INITIAL block takes you to WATCH statement block but after resetting, I had to ...
by Krishna Chaitanya
Thu Feb 08, 2018 11:24 am
Forum: MSWin
Topic: NEURON and Python Installation
Replies: 1
Views: 2525

NEURON and Python Installation

Hi, I have tried a lot installing pyNEURON on windows and it seems to be working but not as easily as with Linux. Firstly, there is no correct instruction on how to configure NEURON with Python. I have tried installing through executable (.exe) file but it says libnrnpython34 is not available. I hav...
by Krishna Chaitanya
Fri Dec 29, 2017 5:29 am
Forum: Modeling networks
Topic: Executing multiple continuerun statements in run block with parameter changes
Replies: 9
Views: 4474

Re: Executing multiple continuerun statements in run block with parameter changes

Hi Ted, I am providing the scripts of each file I used. The scripts are as follows: 1) Pregen.mod (SpikeGenerator mod file). 2) adex.hoc (template creation of spikegenerator) 3) cells_test.hoc (creating the cells) 4) modifycheckmoss.hoc (main file for changing the file parameters during run) : $Id: ...
by Krishna Chaitanya
Thu Dec 28, 2017 8:33 am
Forum: Modeling networks
Topic: Executing multiple continuerun statements in run block with parameter changes
Replies: 9
Views: 4474

Re: Executing multiple continuerun statements in run block with parameter changes

Hi Ted, I have tried your advice but I couldn't turn the stimulus on after I called stdinit(). Somehow, the stimulus is turning on only when it is called before stdinit(). When I try to use it after the stdinit() call, it doesn't work. Is there a reason that the <proc> functionality doesn't work whe...
by Krishna Chaitanya
Fri Dec 15, 2017 12:22 pm
Forum: Modeling networks
Topic: Executing multiple continuerun statements in run block with parameter changes
Replies: 9
Views: 4474

Re: Executing multiple continuerun statements in run block with parameter changes

Hi Ted, Sorry for not mentioning the spikegenerator properties. Yes. The presynaptic events happen at random times. I have used a random function to generate events between t and t+DUR. I have not used NetStim and VecStim to play the spike events. objref rand_mos rand_mos=new Random() mossyfiber.spi...
by Krishna Chaitanya
Thu Dec 14, 2017 12:53 pm
Forum: Modeling networks
Topic: Executing multiple continuerun statements in run block with parameter changes
Replies: 9
Views: 4474

Re: Executing multiple continuerun statements in run block with parameter changes

Hi Ted,

This is a single simulation with different set of mossy fibers being activated at different intervals.

Kindly let me know how can I solve this?

Thank you.
by Krishna Chaitanya
Thu Dec 14, 2017 12:46 pm
Forum: Modeling networks
Topic: Executing multiple continuerun statements in run block with parameter changes
Replies: 9
Views: 4474

Re: Executing multiple continuerun statements in run block with parameter changes

Hi Ted,

Yes. I am trying to do multiple continuerun statements for activating different mossy fibers in each run.

Kindly let me know how can I solve this?

Thank you.
by Krishna Chaitanya
Wed Dec 13, 2017 11:43 pm
Forum: Modeling networks
Topic: Executing multiple continuerun statements in run block with parameter changes
Replies: 9
Views: 4474

Executing multiple continuerun statements in run block with parameter changes

Hi, I have been trying to use multiple continuerun() statements inside run block to simulate the mossy fiber on and off conditions. In my case, I would like to run the simulation for 5 seconds and for each second, the activated mossy fibers (spikegenerators) will be different. The end parameter of t...
by Krishna Chaitanya
Wed Nov 08, 2017 11:55 pm
Forum: Modeling networks
Topic: Error using nc.record
Replies: 5
Views: 17729

Re: Error using nc.record

Dear Ted, I have sent you the email with the code on Nov 3 but I am not sure why it isn't delivered. And I found the error in the code after going through several posts in NEURON forum and rectified it. It resulted mainly due to faulty conductance value. Thanks a million for your kind help and respo...
by Krishna Chaitanya
Fri Nov 03, 2017 9:06 am
Forum: Modeling networks
Topic: Error using nc.record
Replies: 5
Views: 17729

Re: Error using nc.record

Hi Ted,

I am using NEURON 7.4 for all my simulations.

I am sending the compressed code to your email.

Kindly let me know where I'm going wrong in my coding.

Thanks.
by Krishna Chaitanya
Thu Nov 02, 2017 1:55 pm
Forum: Modeling networks
Topic: Error using nc.record
Replies: 5
Views: 17729

Error using nc.record

Hi, I was using nc.record function for artificial neuron models. Where I simulated 30 neurons, there is no error but when I increased to 31, it pops up an error: "abandon when t==qthresh_->t_=" Segmentation violation CVode[0].use_daspk(1) NumericalMethodPanel[0]. isdaspk() NumericalMethodPanel [0].r...
by Krishna Chaitanya
Mon Jun 06, 2016 4:11 am
Forum: Parallel NEURON
Topic: Number of spikes decrease in parallel run
Replies: 2
Views: 5064

Re: Number of spikes decrease in parallel run

Thanks a lot Ted. Will do that and see if I can figure out.