After 22 years of struggling with my gender identity and sexual orientation, I started identifying as Bigender 2 years ago. Not long after I fell into meeting a grad student under Dr. Ramachandran, famous for his work in identifying and treating phantom limbs. I convinced Laura Case to do a study on Bigender people to find out if there is any physical basis toil... ie: is it real? It was just published... take a look! Amazing!