A study conducted in Spain is suggesting there’s a biological basis for transgender identity. It involved a single MRI done on the brains of 42 transgender people of both born genders. The study – discussed in a January 2016 Scientific American article – indicated the males had brains associated with that of females and vice versa.
But Dr. Michelle Cretella, president of the American College of Pediatricians, says that’s not how science works. She argues that numerous studies already prove a person’s brain is changed if they live a certain way or behave a certain way.
“For them to prove that the brains of transgender-identifying people are different, they would have to do a study that looks at hundreds and hundreds of infants … and follow that one set of infants into adulthood,” she explains.
Nevertheless, Cretella has said in the past that the transgender movement has “gained legs” in the medical community and the culture “by offering a deeply flawed narrative.” The Spanish study, she says, is no different.
“Bottom line, if transgender behavior and feelings were hardwired, they would have to be hardwired in DNA from fertilization,” she continues. “And if that were the case, a hundred percent of identical twins would match for their gender identity – and that is not the case by any means.”
In fact, writes Cretella, the largest study of identical twin transgender adults showed that almost three-fourths (72%) of what contributes to transgenderism in one twin consists of non-shared experiences after birth – “that is, factors not rooted in biology.”