Research
Read how they describe their research on their University of Toronto profile.
Latest papers
A Pocket History of Research on Family Composition and Sexual Orientation.
Archives of sexual behavior · 2026 · first author
Reconsidering the Scope and Mechanisms of the Birth Order Effect on Sexual Orientation.
Archives of sexual behavior · 2026 · first author
Birth Order and Family Size of UK Biobank Subjects Identified as Asexual, Bisexual, Heterosexual, or Homosexual According to Self-Reported Sexual Histories.
Archives of sexual behavior · 2025 · senior author
Latest funding
- $210,000
Older brothers, sexual orientation, and maternal immune reactivity
NSERC · 2010 · Co-investigator
- $63,000
Cognitive functioning in pedophiles
SSHRC · 1999 · Principal investigator
28 publications.
A Pocket History of Research on Family Composition and Sexual Orientation.
Blanchard R
Reconsidering the Scope and Mechanisms of the Birth Order Effect on Sexual Orientation.
Blanchard R
Birth Order and Family Size of UK Biobank Subjects Identified as Asexual, Bisexual, Heterosexual, or Homosexual According to Self-Reported Sexual Histories.
Kabátek J, Blanchard R
A Current Approach to Logistic Regression Analysis of Birth Order and Sexual Orientation.
Blanchard R, Kabátek J, Zdaniuk B
Studying Fraternal Birth Order in Homosexual Women and Bisexual Men.
Blanchard R
New Data on Birth Order in Homosexual Men and Women and a Reply to Vilsmeier et al. (2021a, 2021b).
Blanchard R, Skorska MN
Reassessing the Effect of Older Sisters on Sexual Orientation in Men.
Blanchard R, Lippa RA
A map of desire: multidimensional scaling of men's sexual interest in male and female children and adults.
Bailey JM, Blanchard R, Hsu KJ, Revelle W
Estimation of the Fraternal Birth Order Effect in the UK Biobank Data Reported by Abé et al. (2021).
Blanchard R
A method yielding comparable estimates of the fraternal birth order and female fecundity effects in male homosexuality
Ray Blanchard, Jurian Krupp, Doug P. VanderLaan, Paul L. Vasey, Kenneth J. Zucker
Older brothers, sexual orientation, and maternal immune reactivity
Principal investigators: Bogaert, Anthony
Cognitive functioning in pedophiles
Principal investigators: Blanchard, Ray
Keywords: pedophilia; sex offenders; sexual behaviour; neuropsychology; IQ; cognitive functioning
From public funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998 with their latest competition results, the Canada Foundation for Innovation, Genome Canada, the Canadian Space Agency, Canada Research Chairs, the Fonds de recherche du Québec, Ontario research funding, Michael Smith Health Research BC, the Canadian Cancer Society, Heart & Stroke and Brain Canada.
Frequent collaborators
- Doug VanderLaan and Paul Vasey: 61 shared papers
- Doug VanderLaan and Ray Blanchard: 7 shared papers
- Doug VanderLaan and Anthony Bogaert: 3 shared papers
- Doug VanderLaan and Adam MacNeil: 2 shared papers
- Paul Vasey and Ray Blanchard: 2 shared papers
- Adam MacNeil and Anthony Bogaert: 2 shared papers
- Anthony Bogaert and Ray Blanchard: 2 shared papers
- Maiko Schneider and Doug VanderLaan: 1 shared paper
- Maiko Schneider and Ray Blanchard: 1 shared paper
- Nathan Kolla and Ray Blanchard: 1 shared paper
- Justin Carré and Ray Blanchard: 1 shared paper
- Adam MacNeil and Ray Blanchard: 1 shared paper
- Health Sciences
- Department of Psychiatry
- Department of Psychological and Brain Sciences
- Canadian Centre for Behavioural Neuroscience
- Psychology
- Psychiatry & Behavioural Neurosciences
- Institute of Medical Science
Co-authors at University of Toronto, colored by department. Thicker lines mean more shared papers; select anyone to open their profile and their own map.
Kenneth Zucker
Faculty
7 shared papers, latest 2020
Doug VanderLaan
Department of Psychological and Brain Sciences
7 shared papers, latest 2020
Anthony Bogaert
Health Sciences
2 shared papers, latest 2017
Paul Vasey
Canadian Centre for Behavioural Neuroscience
2 shared papers, latest 2020
Maiko Schneider
Psychiatry & Behavioural Neurosciences
1 shared papers, latest 2017
Justin Carré
Psychology
1 shared papers, latest 2020
Adam MacNeil
Health Sciences
1 shared papers, latest 2017
Nathan Kolla
Institute of Medical Science
1 shared papers, latest 2010
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Profile data last refreshed on September 29, 2026 from the university directory, publication records and public research funding records.