Ray Blanchard

Ray Blanchard
Ray Blanchard
	Blanchard in 2008
Born	Ray Milton Blanchard; October 9, 1945; Hammonton, New Jersey, U.S.
Citizenship	United States; Canada;
Alma mater	University of Pennsylvania; University of Illinois;
Known for	Blanchard's transsexualism typology; Fraternal birth order effect; Handedness and sexual orientation; Erotic target location error; Criticism of the feminine essence theory of transsexuality; Work on phallometry; Paraphilias; Gender dysphoria; Sexual orientation;
	Scientific career
Fields	Psychology; Sexology;
Institutions	University of Toronto; Centre for Addiction and Mental Health (CAMH);
Academic advisors	Kurt Freund

Ray Milton Blanchard (/ˈblæntʃərd/ BLAN-chərd; born October 9, 1945) is an American-Canadian sexologist who researches pedophilia, sexual orientation and gender identity. He 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. Blanchard has also published research studies on phallometry and several paraphilias, including autoerotic asphyxia. Blanchard also proposed a typology of transsexualism.

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