> finds that size is the only clear-cut difference between male and female brains. Women's brains are about 11% smaller than men's, in proportion to their body size.

> "This means that the brain differences between large- and small-headed men are as great as the brain differences between the average man and woman," Dr. Eliot said. "And importantly, none of these size-related differences can account for familiar behavioral differences between men and women, such as empathy or spatial skills."

Well, kind of like a shorter male is still shorter than a taller male yet males are taller than females on average ... which makes it a bit of a 'duh' assessment. Obviously these are distributions.

> And importantly, none of these size-related differences can account for familiar behavioral differences between men and women, such as empathy or spatial skills.

That's a rather unscientific assertion and certainly false, besides the fact that it doesn't even seem to follow from the study itself.

If more gray matter by itself already explains autism, then certainly the gray matter and brain size differences between the sexes must account at least in part for similar cognitive and behavioral differences between the sexes.