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Hello

Are the action potentials modeled using mutlicompartmental modeling in NEURON all or none?
If yes what is the minimum amplitude of an action potential (30, 40mV less than that)? Should events overshooting 0mV be considered as APs or as subthreshold EPSPs?

thank you,
A

I see, understood.Thank you!

thank you very much for your response Ted Regarding point 2. indeed I have noticed this myself and had decided to artifially add radius. Based on the data at my disposal I can estimate average radius per section. I have 4 sections, so four average radius values. That is not an ideal solution but my ...

Hello I load this morphology with "new Import3d_SWC_read()" and when I plot the voltage, I get a segmentation violation error. I have used similar morphologies and others worked well. Unsure what I should be looking for that would be causing this error. Is it a discontinuity in the SWC poi...

thank you Ted! Repetetion of fundamental concepts is very fruitful. It is very true that in person interactions are many times better, however through this forum you've been nothing but a great teacher and a mentor to all of us. I would like to illustrate my issue in this context with a specific exa...

that sounds very good, thank you. I will post here my solution. One clarification that always confuses me. I dont want to "add" a distributed mechanism to the model. The model already has distributed mechanisms added to it an I want to write a voltage clamp experiment to record them (speci...

thank you Ted I am doing a voltage clamp on my pyramidal cell to record Ih under different holding potentials. Following your steps I write: pyr1 = h.cADpyr229_L23_PC_c2e79db05a # name of the cell template defined next to begintemplate in the model hoc file. pyr1_v_vec = h.Vector() pyr1_i_vec = h.Ve...

Hello I want to record the HCN currents per some surface area in my multicompartment model using GUI. I have searched through the following links but haven't found relevant insructions yet. https://nrn.readthedocs.io/en/latest/search.html?q=GUI+record+Ih+&check_keywords=yes&area=default Than...

hello I am using a L23 pyramidal neuron from the HBP cortical microcircuit, Aberra et al 2018 https://senselab.med.yale.edu/ModelDB/S ... del=241165. I replace the morphology of a L23 cortical cell with my own morphology, but I preserve mechnanisms and synapse distribution from the HBP. If I use sol...

yes the file being scanned was corrupted. I fixed it, thank you!

hello I am using a L23 pyramidal neuron from the HBP cortical microcircuit, Aberra et al 2018 https://senselab.med.yale.edu/ModelDB/ShowModel?model=241165 . I replace the morphology of a L23 cortical cell with my own morphology, but I preserve mechnanisms and synapse distribution from the HBP. If th...

good to know, thanks that's very interesting.
I relied on this link if others seek similar information.

http://www.neuronland.org/NLMorphologyC ... /Spec.html

thank you that makes sense, I thought I should've looked in Programmer's reference.

Hello

I am looking for documentation on the swc morphology format.
I want to be reminded of what each of the columns in a given file represents.

thank you,
Alexandra

Hello Ted this is again within the context of Depolarization induced suppression of inhibition (DSI). I am implementing a simpler model this time. I want the DSI to start after the pyramidal cell is depolarized and last for 1.8 seconds. I want the amplitude of the current to decay according to the f...