Friday, 8 April 2011
Another piece of the puzzle
Zoe Brain
http://aebrain.blogspot.com/2011/04/another-piece-of-puzzle.htmlWe're starting to get a good handle on the degree of cross-sexing in the human brain in cases of Transsexuality. We know it's not complete - the anecdotal behavioural anomalies of Transsexed people, greater creativity, increased intelligence, the kinds of profession many enter - have been noted for many years. But such accumulations of anecdotes don't match the standards of proof we'd like. Better is actual measurements of the brain.
From Sex Dimorphism of the Brain in Male-to-Female Transsexuals. Savic I, Arver S. Cereb Cortex. 2011 Apr 5:
Gender dysphoria is suggested to be a consequence of sex atypical cerebral differentiation. We tested this hypothesis in a magnetic resonance study of voxel-based morphometry and structural volumetry in 48 heterosexual men (HeM) and women (HeW) and 24 gynephillic male to female transsexuals (MtF-TR). Specific interest was paid to gray matter (GM) and white matter (WM) fraction, hemispheric asymmetry, and volumes of the hippocampus, thalamus, caudate, and putamen.
