Friday, 3 December 2010
The Puzzle - an Overview as of 2009
Zoe Brain
http://aebrain.blogspot.com/2010/12/puzzle-overview-as-of-2009.html (http://aebrain.blogspot.com/2010/12/puzzle-overview-as-of-2009.html)
Biological and Psychosocial Correlates of Adult Gender‐Variant Identities: a Review by J.F.Veale & D.E.Clarke, Personality and Individual Differences (2009) 48(4), 357-366
This article reviews research on biological and psychosocial factors relevant to the etiology of gender-variant identities. There is evidence for a genetic component of gender-variant identities through studies of twins and other within-family concordance and through studies of specific genes. Evidence that prenatal androgens play a role comes from studies that have examined finger length ratios (2D:4D), prevalence of polycystic ovary syndrome among female-to-male transsexuals, and individuals with intersex and related conditions who are more likely to have reassigned genders. There is also evidence that transsexuals have parts of their brain structure that is typical of the opposite birth-assigned gender.