Ooops, there goes the whole evolutionary psychology debate. They lose. [View all]
http://www.independent.co.uk/life-style/the-hardwired-difference-between-male-and-female-brains-could-explain-why-men-are-better-at-map-reading-8978248.html

Researchers found that many of the connections in a typical male brain run between the front and the back of the same side of the brain, whereas in women the connections are more likely to run from side to side between the left and right hemispheres of the brain.
This difference in the way the nerve connections in the brain are hardwired occurs during adolescence when many of the secondary sexual characteristics such as facial hair in men and breasts in women develop under the influence of sex hormones, the study found.
It's quite striking how complementary the brains of women and men really are, said Rubin Gur of Pennsylvania University, a co-author of the study.
Detailed connectome maps of the brain will not only help us better understand the differences between how men and women think, but it will also give us more insight into the roots of neurological disorders, which are often sex related, Dr Gur said.