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Hello Ted, I am simulating a nerve fiber with train of impulses and recording the membrane potential along the nodes (in this case 100 nodes). The simulation runs for a long duration of 30-60 seconds. The amount of data recorded is very big. But for my analysis the only interest is in the time indic...

Whenever I try to change the value of amplitude/duration from the GUI generated from vstim.hoc, the stim_amp and stim_time keeps getting populated with junk values The stim_time Vector needs to be completely rebuilt every time proc stim_waveform() is called. In stim_waveform() change stim_time.appe...

Hey Ted, I seem to have found a bug in the vstim.hoc code you sent me. Whenever I try to change the value of amplitude/duration from the GUI generated from vstim.hoc, the stim_amp and stim_time keeps getting populated with junk values. i.e. zero stimulus values in stim_amp, and time indexes in stim_...

Terrific! When it comes time to publish your work, please be sure to cite NEURON. One of these two will do nicely: Carnevale, N.T. and Hines, M.L. The NEURON Book. Cambridge, UK: Cambridge University Press, 2006. Hines, M.L. and Carnevale, N.T. The NEURON simulation environment. Neural Computation ...

Then the easiest way to proceed is to use the same approach that is used by the files in extracellular_stim_and_rec.zip. Everything related to constructing the stimulus waveform is contained in the file stim.hoc, which is loaded by the statement load_file("stim.hoc") in initxstim.hoc. You...

I can't seem to figure out how to declare the electrode location in the point process. Could you throw some light on this? It would be very helpful. As far as I know, the extracellular library computes the transfer resistance between the location of stimulus in extracellular medium to all the nodes...

Hello Ted, I'm using the model files posted by you at http://www.neuron.yale.edu/ftp/ted/neuron/extracellular_stim_and_rec.zip for extracellular stimulation of a myelinated axon. The stim.hoc file here allows me to apply a stimulus stored as a vector with another vector encoding time. Now I want to ...

Thanks a lot Ted. It took me a while to figure out. But I finally got what I wanted. Sorry for the late response.

Hey Ted, I'm very new to Neuron Simulation. I'm trying to incorporate this snippet you posted in my code to stimulate a axonal node with IClamp inputs from a vector. ///// ensure that stim can deliver as many pulses as necessary, for as long as necessary stim.del = 0 stim.dur = 1e9 stim.amp = 0 AMP ...