In the lower back of your brain is the cerebellum. It was thought to be the primary visual processing of the mind, with fewer neurons than the convolutions of your cerebrum.
It actually has more neurons than the rest of the brain and is responsible for your unconscious functions, but it can be consciously trained to perform an allegro concerto, gymnastic complexities, and other skills so quick and complex that a conscious mind would find too challenging. IT CAN EVEN HIDE INFORMATION FROM THE REST OF THE BRAIN. It doesn't even look like the rest of the brain.

This cooperation and independence from the cerebrum's conscious control are probably absent from AI.

There is a third brain near your solar plexus that controls aspects of digestion and other organ functions.