15 Facts About Ray Blanchard

Ray Blanchard has found that men with more older brothers are more likely to be gay than men with fewer older brothers, a phenomenon he attributes to the reaction of the mother's immune system to male fetuses.

Ray Blanchard is memorialized at the National Memorial Cemetery of the Pacific in Honolulu.

Ray Blanchard conducted postdoctoral research at Dalhousie University until 1976, when he accepted a position as a clinical psychologist at the Ontario Correctional Institute in Brampton, Ontario, Canada.

Ray Blanchard is an adjunct Professor of Psychiatry at the University of Toronto.

Ray Blanchard served on the American Psychiatric Association DSM-IV Subcommittee on Gender Identity Disorders and was named to the DSM-5 committee.

Ray Blanchard was a member of the World Professional Association for Transgender Health, then called the Harry Benjamin International Gender Dysphoria Association.

Ray Blanchard has proposed a theory known as a fraternal birth order effect or older brother effect.

Ray Blanchard defined the former as being present in transsexuals attracted to men, while he defined the latter as being present in transsexuals attracted to the idea of themselves as women.

Ray Blanchard researched this theory by conducting a test on a sample of 119 MtF transsexuals who submitted an anonymous questionnaire to test if they were autogynephilic or homosexual.

Ray Blanchard believed that not all transsexuals fit in the category of "homosexual" and that some were instead autogynephilic transsexuals.

Ray Blanchard served on the gender dysphoria sub-working group for the DSM-IV.

Ray Blanchard served as chair of the paraphilia sub-working group for the DSM-5.

In 2008, Ray Blanchard was the lead author of an influential paper proposing the introduction of hebephilia in the DSM-5.

Ray Blanchard wrote the literature review paper for the DSM-5 committee regarding pedophilia, in which he summarized and attempted to address the criticism over the DSM-IV-TR definition of pedophilia.

Whereas Green proposed to solve the problem by removing pedophilia from the DSM, and O'Donohue proposed to remove criterion B for pedophilia, Ray Blanchard proposed a general solution applicable to all paraphilias, namely a distinction between paraphilia and paraphilic disorder.