First time? This work was published in 2013:

"... Men and women's brains are connected in different ways which may explain why the sexes excel at certain tasks, say researchers. A US team at the University of Pennsylvania scanned the brains of nearly 1,000 men, women, boys and girls and found striking differences.

Male brains appeared to be wired front to back, with few connections bridging the two hemispheres. In females, the pathways criss-crossed between left and right. …"

https://www.pnas.org/doi/abs/10.1073/pnas.1316909110

My first reaction: no [kidding].

My second reaction: this article is going to get flagged as hateful for some reason.

First time? Hasn't it already been established that male and female skulls and brains are physically different. As in an anthropologist could look at a skull and determine the gender. Or a neuroscientists can look at a brain and determine the gender.

What is a woman though?