-
Notifications
You must be signed in to change notification settings - Fork 0
New issue
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
Find rheobase #2
Comments
Now that you have the infrastructure in place, it would also be interesting to further play with the system near these transitions. How does spiking appear/disappear? Are there transient spikes close to the transition? Is there a significant delay (related to #3)? Are there changes in spike shape/amplitude? Apply sharp, short square current pulses (crude approximation to deltas for the physicist in you) to the system. When is it excitable (like "real" neurones)? |
Oh yeah, I forgot to mention that: The neuron always goes right into tonic spiking, there are no single action potentials around the rheobase (also checked this for a few values between -1.90 pA and -1.91 pA with long simulation times). |
How are you choosing the initial conditions? Should it make a difference? |
Can in induce firing via a a short (delta-like) I pulse when silence and tonic spk coexist? |
See readme here. I always let the system settle for 5000 ms, so I think For the delta pulses, see #5 |
To correct on this: For the tonic -> silence transition, the rheobase does of course depend on the previous conditions (for example, starting with tonic spiking at a 30 pA current step, the transition to silence occurs at -2.60 pA). The rheobase reported above (-2.73 pA) was the smallest rheobase current I could get (by approaching it in 0.01 pA steps). |
caveats: find it for the silence-tonic and for the tonic-silence transitions; think about spike delays
The text was updated successfully, but these errors were encountered: