Dear Charl, 
thanks for your reply, 
in these equations 
Inline image
 the function S{x} = x, if x ≥ 0, and 0 if x < 0.

in the neuron model, I have the  only first term without s{w}, 
1. my question is how can I add s{w} in the neuron model? 
2.for the second term, I defined spike generators and parrot neurons and connect parrot neurons by static synapses to my desired neuron populations. can I consider synaptic weight  of parrent neurons' conncetions to neuron poulations as s{w} for second term?
3. How can I decrease the time of simulation? 
Best, 
Atiyeh 


On Tuesday, November 21, 2023 at 06:17:20 PM GMT+1, Charl Linssen <nest-users@turingbirds.com> wrote:


Hi Atiyeh,

Let me try to understand fully the model that you wish to implement. I am not sure what the "S{...}" is, is it a generic function? Could you specify in case there is a specific S() that you would like to use in your model?

Cheers!
Charl


On Tue, Nov 21, 2023, at 09:42, atiye nejadebrahim wrote:
Dear All, 
I am going to add weights for excitatory and inhibitory synaptic currents according to this equation:

Inline image
can you help me how I can add S(Wji) to a simple neuron model like one I attached to this email?
Thanks and BR, 
Atiyeh 

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