Hi!

I've finally successfully recreated the Izhikevich tutorial, but when I try to run the "homework" (i.e., generate the other results in the paper), I find some strange results. Basically, every time I run the neuron with Simulate(), the new simulation is ACCUMULATED after the previous result. I guess I should reset the voltmeter between simulations somehow, but I couldn't find the adequate commend... Can you give me any hint?

You can reset the data collected in the voltmeter by setting its n_events field to 0 like so:

vm =  nest.Create("voltmeter")
# create and connect neurons, simulate
vm.n_events = 0
# data from previous runs is gone

For more information about the recording backend memory, see here: https://nest-simulator.readthedocs.io/en/v3.4/models/recording_backend_memory.html

More general information about recording from your simulations is here: https://nest-simulator.readthedocs.io/en/v3.4/devices/record_from_simulations.html

Second, I am doing the homework for this tutorial, reproducing the original results. Should it suffice to enter the right values for a, b, c, and d? The results I am getting do not look too similar to the ones in the paper, especially the bursts for the IB and CH neurons... any idea?

I am afraid, I’m not deep enough in the tutorial and can’t help you with this one. One of my colleagues will have to pick this one up.

Cheers,
Jochen!

cheers
gus.-
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-- 
Dr. Jochen Martin Eppler (he/him)
Simulation and Data Lab Neuroscience
Jülich Supercomputing Centre
Institute for Advanced Simulation
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