Hasn't this been proven over and over again beginning with changes prior to birth?
I believe this is a new piece of evidence using functional MRI, that science has a tendency to accumulate, despite the protests of those who believe in various sociological and feminist theories and fantasies which have little or no evidence for their support. IIRC, functional MRI is able to detect deoxyhemoglobin in order to show which areas of the brain were consuming more oxygen, i.e. which areas of the brain had more activity.