Why can't a woman think more like a man? That's the sort of question one would expect to hear from an unrepentant chauvinist like Shaw's Professor Higgins. But a growing number of scientists have begun wondering the same thing. Relying in part on advanced brain-scanning techniques, they have amassed tantalizing hints that men and women may use their heads in subtly distinctive ways.
Just last week a new study showed that in science tests teenage boys who scored in the top 5% outnumbered girls 7 to 1, while girls outperformed boys in reading comprehension. In general, men as a group excel...