www.neuron.yale.edu

I realized that we needed to do define_shape() first... so now I got it. However, I have a another question... The readme file says this: "7. During a simulation, the extracellularly recorded potential vrec is computed by summing up the contributions from all of the segments that contain the xt...

A new cell model has been successfully implemented using the extracellular_stim_and_rec file. All the modification you mentioned were made. However, we are not seeing any responses. We are trying to plot the voltage response of a particular segment, so we do "Plot what?" to choose the segm...

Actually, when I double-click on it, it works... weird.. thanks!!

When I double-click on the initxstim.hoc, NEURON quits suddenly...

Thanks... I am still not able to get it to work. I downloaded the file you attached, dragged the NEURON 7.2 folder to the Applications folder, then the extracellular_stim_and_rec folder onto the mknrndll icon, and received this in the prompt: -e /Users/BC/Desktop/neuron/extracellular_stim_and_rec xt...

Thanks... I know have 10.6, and when I drag xtra.mod to the mknrndll icon, this is entered into the prompt: -e /Users/BC/Desktop/neuron/extracellular_stim_and_rec xtra.mod xtra.mod "/Users/BC/Desktop/NEURON-7.1/nrn/share/nrn/libtool" --mode=compile gcc -DHAVE_CONFIG_H -I. -I.. -I"/Use...

Thanks... Yes, I did. It looks like this in the prompt:

-e
drag a folder or set of mod files onto the mknrndll script
Press 'return' key to close
/Users/BC/Desktop/neuron/extracellular_stim_and_rec

... and nothing else happens...

Yes, I tried doing that with my cell and keep getting this error: "setpointers undefined function." When I use the given cell.ses, and delete one ore two axons and type setpointers() in the prompt, it works... ???

I have the extracellular stimulation working, but I am having trouble implementing the prepulses. I am trying to work with stim.hoc; it only gives you the option of changing the delay, duration, and amplitude for a single pulse. Is there a way in to incorporate more than one?

Nothing happens when I drag a model into mknrndll.

Using NEURON 7.1
Mac OS X (10.5.8)

Oh, what I meant by prepulse is that, for a given desired stimulus, there is an initial stimulus (usually of different amplitude and/or sign) right before it. Basically, I am trying to demonstrate prepulse inhibition (http://en.wikipedia.org/wiki/Prepulse_inhibition).

In the "Notes," it says, "after any change to cell geometry or nseg, be sure to invoke setpointers()." How can I do this? I have created a new "cell.ses" and can't get it to work....

I am new to NEURON. I would like input on how to simulate: (1) extracellular stimulation (2) current prepulse waveforms