Looks like I can't call the value of the matrix in 'on_pre'

[adam]

The method mentioned here will likely be useful for you:

Using custom synaptic weight matrix

Hi @pshah95 . Unfortunately we only mention the other direction (getting a weight matrix out of Brian’s internal structure) in the documentation, but if you have a fully-connected network, then using a weight matrix to set the weights is actually quite simple. After connecting things you can use: Ce.w[:] = W.flatten()*mV This works because the internal ordering of synapses is exactly the same as for a flattened matrix. Hope that helps, best Marcel PS: It is doing exactly the same thing, but…