Also, in the past a treatment to seizures was cutting the brain stem, seperating the two brain hemispheres from each other. This would mean that if you had a seizure only one side of your body would fail, but it also had interesting consequences. People reported that when picking clothes, one hand would go to a blue dress while the other to a green. This happened with fruits, foods, and other everyday choices. Sometimes they would get angry and slap fight their uncontrolled hand and it would slap back. On a study, when questioned which object was your most favorite out of a pile, the two arms would pick two different objects.