We refer to the cerebrum, the front brain, which does the thinking.
"Editorials-from-the-Hearst-Newspapers"
Brisbane, Arthur
He is, in fact, only a mask: of whom the fox "O quanta species, inquit, cerebrum non habet."
"A Budget of Paradoxes, Volume II (of II)"
Augustus de Morgan
The female cerebrum averages two ounces less in weight than the male.
"Round the Red Lamp Being Facts and Fancies of Medical Life"
Arthur Conan Doyle