Hi @Flowhill,
The Izhikevich neuron has some really weird dynamics, depending on the initialization parameters used. This Nengo example briefly demonstrates some of the weirdnesses you can get by playing around with the neuron parameters.
I’m not super familiar with the inner workings of the Izhikevich neuron, but for your question:
It looks like setting a non-default value for the reset_recovery parameter does enable it to behave somewhat like what you would expect. When I set reset_recovery=2, I get the plot below:
