1984
MRI Brain Morphometry in Heterosexual Men and Women, Gay Men, and Transgender Women: A Preliminary Study
Suwit Saekho1, Artit Rodkong2, Diana E Peragine3, Malvina N Skorska3, Pongpun Saokhieo4, Taweewat Supintham4, Oranicha Kaewthip4, Kittichai Wantanajittikul1, Suwat Chariyalertsak4, and Doug P VanderLaan3
1Radiologic Technology, Chiang Mai University, Chiang Mai, Thailand, 2Radiology, Chiang Mai University, Chiang Mai, Thailand, 3Psychology, University of Toronto Mississauga, Mississauga, ON, Canada, 4Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand
This study investigated brain bases of sexual and gender diversity found that  Men had greater GM and WM volumes and women had thicker cortices. Overall, TG had a brain pattern that more closely reflected that of heterosexual women, whereas gay men were more similar to heterosexual men.
Fig. 2 Blue in (a) and (b) demonstrated significantly thinner areas in M compared with F and TG. F showed thicker cortical structures compared with G and TG, (c) and (d) (orange). Increase thickness in TG to M, (e). Mixed regions, (f).
Fig.1 (a) Gray Matter (GM) volume, and (b) White Matter (WM) volume compared between Male (M), Female (F), Transgender women (TG) and Gay men (G). (*) is significantly higher compared to F