Quote:
Originally Posted by
Calidore
Have studies ever been done on physical differences in male and female brains and what they mean? And while this may be a political hot potato, have the brains of transgendered people ever been studied to determine whether there is a physical reason for their feeling of being trapped in the wrong body, or whether it is more likely purely psychological?
I got Young and Alexander's The Chemistry Between Us from the library. Dick Swaab has a lab that maintains the Netherlands Brain Bank founded in 1985. Here's something from pages 30-31:
Swaab has also found the transgender brain. After years of searching his lab discovered differences in a structure called the bed nucleus of the stria terminalis (BNST)....When Swaab's lab looked at the BNSTs of male and female heterosexuals and homosexuals, and at those of male-to-female transsexuals, it found that the transgender BNST was the same size as the BNST of women.
This seems to be confirmed by the Wikipedia article on "causes of transsexualism" although other causes are also mentioned: http://en.wikipedia.org/wiki/Causes_of_transsexualism