Twistermind: Here's a primary article with similar results http://www.pnas.org/content/112/50/15468.abstract (might be hard to understand unless you have some scientific background)
And here's an easier to read article interpreting a similar study: http://www.theguardian.com/commentisfree/2015/dec/04/male-female-brains-same-but-people-all-different