Wednesday, 17 June 2009
26 Weeks
Zoe Brain
http://aebrain.blogspot.com/2009/06/26-weeks.htmlOne for the reference library - from Dr Leonard Sax's Montgomery Center for Research in Child and Adolescent Development:
Sex differences in the brain begin in the womb. About midway through pregnancy, the testicles of a developing baby boy start churning out testosterone in huge quantities, comparable to what an adult man produces. These sex hormones bind to brain tissue and begin to transform it. Between 18 and 26 weeks gestation, the developing brain is permanently and irreversibly transformed. Israeli scientists Reuwen and Anat Achiron have found that if you do a regular ultrasound examination when a woman is 26 weeks pregnant, you can distinguish a female brain from a male brain. At 26 weeks!
