Probably more than structure (which I took to mean connectivity) -- there are a lot of things that affect (biological) neuronal computation in addition to conne

Probably more than structure (which I took to mean connectivity) -- there are a lot of things that affect (biological) neuronal computation in addition to connectivity, such as synaptic weights, distribution & types of receptors for different neurotransmitters, and the (sometimes very different) timescales associated with different neurotransmitters. Not easy things to measure.