I wouldn’t say there are no differences between the “male” and “female” brain. I do know my brain wasn’t very happy on the hormones I was born producing — and there’s promising research about how gender identity actually has a basis in physical differences in brain structure [1] which are hypothesized to form based on exposure to various hormone levels during gestation (and which have already been shown to impact gender identity through the very elevated rates of transition of children of mothers who took the synthetic estrogen diethylstilbesterol).
But like anything involving gendered characteristics in humans as expressed in the world, the range of observed behaviors within the two populations overlaps so much it’s hard to draw meaningful conclusions about any individual by differentiating the two.
Based on my personal experience and from talking to others who have medically transitioned, the difference between “inherently male” behaviors and “inherently female” behaviors can be nearly entirely explained by hormones. As in, you change hormones and the behavior changes: testosterone tends to cause elevated anger / aggression while estrogen tends to make people more neurotic with a wider range of emotional response. That’s it. The rest of the differences are either personality or environmental / social factors.
But like anything involving gendered characteristics in humans as expressed in the world, the range of observed behaviors within the two populations overlaps so much it’s hard to draw meaningful conclusions about any individual by differentiating the two.
Based on my personal experience and from talking to others who have medically transitioned, the difference between “inherently male” behaviors and “inherently female” behaviors can be nearly entirely explained by hormones. As in, you change hormones and the behavior changes: testosterone tends to cause elevated anger / aggression while estrogen tends to make people more neurotic with a wider range of emotional response. That’s it. The rest of the differences are either personality or environmental / social factors.
[1] https://www.nature.com/articles/s41598-017-17352-8