It isn't massively distinct, but another way the observed differences could still be due to nurture rather than nature is that the connectome of the subjects co

It isn't massively distinct, but another way the observed differences could still be due to nurture rather than nature is that the connectome of the subjects could literally be shaped by how we raise and socialized the genders. This is more like an expanded version of the parent argument--these experiences play a role in structuring the eventual-participants brains, and the study is (unknowingly) measuring past-exprience rather than biological destiny.