Barry: Men have more grey matter, but women have more neurons, aren't they crammed closer together or something like that?
Luxana: Yes. Dr. Aiden has published on that subject a couple of times. Some women have as much as twelve percent more neurons and they are densely packed, and guess where in particular?
Barry: Well neuropil is part of brain cell communication; it's all over the place.
Luxana: The highest neuron density occurs on layers of the cortex responsible for brain input and output signals.
Barry: Like hearing.
Luxana: Like hearing, yes.