What’s the Male Brain made of?

The cover of Louann Brizendine’s new book The Male Brain is puzzling.


The Female Brain’s cover was straightforward. Thus the original US edition showed the Female Brain as a tangled curly phone cord (facing left):

(Does anybody under the age of 35 or so actually recognize what that is anymore, by the way?)

The UK edition depicted a woman’s brain as an overstuffed purse (facing right):

But I can’t make sense of the cover of the U.S. edition of The Male Brain (except that whatever the cover’s brain made of, it’s facing left again):

It’s not snips and snails and puppy dog tails. It looks kind of like a gray satin ribbon, which doesn’t really make much metaphorical sense.  Crumpled oddly-shiny toilet paper? Duct tape? I’m stumped.