2D:4D finger-length ratios in children and adults with gender identity disorder.

@article{Wallien20082D4DFR,
  title={2D:4D finger-length ratios in children and adults with gender identity disorder.},
  author={Madeleine S. C. Wallien and Kenneth J. Zucker and Thomas D. Steensma and Peggy T. Cohen-Kettenis},
  journal={Hormones and behavior},
  year={2008},
  volume={54 3},
  pages={450-4}
}
Previous research suggests that prenatal testosterone affects the 2D:4D finger ratio in humans, and it has been speculated that prenatal testosterone also affects gender identity differentiation. If both things are true, then one would expect to find an association between the 2D:4D ratio and gender identity. We measured 2D:4D in two samples of patients… CONTINUE READING