> Human neurons aren't much different from mouse neurons We don't actually know this. Yeah the cerebellum and substantia nigra and other regions preserved acro

> Human neurons aren't much different from mouse neurons We don't actually know this. Yeah the cerebellum and substantia nigra and other regions preserved across mammals are probably conserved in the neural structure as well. But the human neocortex has quite radically different gene expression compared to rats (which results in the morphological differences). There very well could be "more processing power per neuron" in humans vs rodents.