According to a study by Vilayanur Ramachandran, creative people technically have a defect in their brains making them able to cross wire different senses to create and innovate different responses.

So, if someone cuts of his own ear, he’s not nuts, he was just creative!!! (but if someone does these days, its called plagiarism)

Checkout this interesting article: http://news.com.com/This+is+your+brain+on+TED/2100-11393_3-6166247.html?tag=st_lh