Ronald Lindsay André "Ron" Langevin (born September 28, 1940) is a

Canadian Canadians (french: Canadiens) are people identified with the country of Canada. This connection may be residential, legal, historical or cultural. For most Canadians, many (or all) of these connections exist and are collectively the source of ...

forensic psychologist Forensic psychology is the development and application of scientific knowledge and methods to help answer legal questions arising in criminal, civil, contractual, or other judicial proceedings. Forensic psychology includes both research on various ...

at the

University of Toronto The University of Toronto (UToronto or U of T) is a public research university in Toronto, Ontario, Canada, located on the grounds that surround Queen's Park. It was founded by royal charter in 1827 as King's College, the first institution ...

. He is the founding editor of ''Annals of Sex Research'', now titled '' Sexual Abuse: A Journal of Research and Treatment''.Maletzky, Barry M (1991). Langevin RL Editorial: ASR and ATSA: Finally together Sexual Abuse: A Journal of Research and Treatment. Volume 4, Number 1, 5-6,

Life and career

Langevin was born in

Montreal Montreal ( ; officially Montréal, ) is the List of the largest municipalities in Canada by population, second-most populous city in Canada and List of towns in Quebec, most populous city in the Provinces and territories of Canada, Canadian ...

and earned a Ph.D. in psychology from

in 1970. He wrote materials for the Canadian Council for Research in Education before taking a position at the

Clarke Institute of Psychiatry The Centre for Addiction and Mental Health (College Street site) is a psychiatric hospital in Toronto, Ontario. It is located at 250 College Street, just east of Spadina Avenue. Much of its work focuses on forensic psychology, sex addiction, drug ...

, where he worked with

Kurt Freund Kurt Freund (17 January 1914 – 23 October 1996) was a Czech-Canadian physician and sexologist best known for developing the penile plethysmograph (a measurement of sexual arousal in males), research studies in pedophilia, and for the "courts ...

. Langevin argued against the effectiveness of

reparative therapy Conversion therapy is the pseudoscientific practice of attempting to change an individual's sexual orientation, gender identity, or gender expression to align with heterosexual and cisgender norms. In contrast to evidence-based medicine and clin ...

in 1985.Crosby, Louise (February 15, 1985). Gay counseling urges acceptance of homosexuality. ''

Ottawa Citizen The ''Ottawa Citizen'' is an English-language daily newspaper owned by Postmedia Network in Ottawa, Ontario, Canada. History Established as ''The Bytown Packet'' in 1845 by William Harris (journalist), William Harris, it was renamed the '' ...

'' He served as an

expert witness An expert witness, particularly in common law countries such as the United Kingdom, Australia, and the United States, is a person whose opinion by virtue of education, training, certification, skills or experience, is accepted by the judge as ...

in a

sexual abuse Sexual abuse or sex abuse, also referred to as molestation, is abusive sexual behavior by one person upon another. It is often perpetrated using force or by taking advantage of another. Molestation often refers to an instance of sexual assa ...

trial in 1989.Kenna, Kathleen Women sex abusers are 'extremely rare' sex abuse trial told. ''

Toronto Star The ''Toronto Star'' is a Canadian English-language broadsheet daily newspaper. The newspaper is the country's largest daily newspaper by circulation. It is owned by Toronto Star Newspapers Limited, a subsidiary of Torstar Corporation and part ...

'' In 1989 also, Langevin published findings suggesting a

correlation In statistics, correlation or dependence is any statistical relationship, whether causal or not, between two random variables or bivariate data. Although in the broadest sense, "correlation" may indicate any type of association, in statistics ...

between

sex offenders A sex offender (sexual offender, sex abuser, or sexual abuser) is a person who has committed a sex crime. What constitutes a sex crime differs by culture and legal jurisdiction. The majority of convicted sex offenders have convictions for crime ...

and

traumatic brain injury A traumatic brain injury (TBI), also known as an intracranial injury, is an injury to the brain caused by an external force. TBI can be classified based on severity (ranging from mild traumatic brain injury TBI/concussionto severe traumatic b ...

, though he suggested caution in the use of the findings, as half his subjects were alcohol abusers.Staff report (January 23, 1989)
Sex Abuse Linked to Brain
''

Los Angeles Times The ''Los Angeles Times'' (abbreviated as ''LA Times'') is a daily newspaper that started publishing in Los Angeles in 1881. Based in the LA-adjacent suburb of El Segundo since 2018, it is the sixth-largest newspaper by circulation in the Un ...

'' He is director of Juniper Associates Psychological Services and is an Associate Professor in the Law & Mental Health program at University of Toronto. He has also published materials through Juniper Press. Langevin is a charter member of the International Association for the Treatment of Sexual Offenders (IATSO).IATSO: Charter members.
/ref>

Selected bibliography

*Langevin R, Curnoe S. Psychopathy, ADHD, and brain dysfunction as predictors of lifetime recidivism among sex offenders. '' Int J Offender Ther Comp Criminol''. 2011 Feb;55(1):5-26. Epub 2010 Feb 3. *Langevin R, Curnoe S. Are the mentally retarded and learning disordered overrepresented among sex offenders and paraphilics? '' Int J Offender Ther Comp Criminol''. 2008 Aug;52(4):401-15. Epub 2007 Aug 23. *Langevin R, Langevin M, Curnoe S. Family size, birth order, and parental age among male paraphilics and sex offenders. '' Arch Sex Behav''. 2007 Aug;36(4):599-609. *Langevin R. Sexual offenses and traumatic brain injury. '' Brain Cogn''. 2006 Mar;60(2):206-7. *Langevin R, Curnoe S, Bain J. A study of clerics who commit sexual offenses: are they different from other sex offenders? '' Child Abuse Negl''. 2000 Apr;24(4):535-45. *Langevin R, Glancy GD, Curnoe S, Bain J. Physicians who commit sexual offences: are they different from other sex offenders? '' Can J Psychiatry''. 1999 Oct;44(8):775-80. *Langevin R, Wright P, Handy L (1988). The sex killer. '' Ann Sex Res'' Volume 1, Number 2, 263-301, *Langevin R, Bain J, Wortzman G, Hucker S, Dickey R, Wright P. Sexual sadism: brain, blood, and behavior. '' Ann N Y Acad Sci''. 1988;528:163-71. *Langevin R, Ben-Aron M, Wortzman G, Dickey R, Handy L (1987). Brain damage, diagnosis, and substance abuse among violent offenders '' Behavioral Sciences & the Law'' Volume 5, Issue 1, pages 77–94, Winter 1987 *Langevin R (1983). ''Sexual strands: understanding and treating sexual anomalies in men.'' Psychology Press, *Paitich D, Langevin R, Freeman R, Mann K, Handy L. The Clarke SHQ: a clinical sex history questionnaire for males. '' Arch Sex Behav''. 1977 Sep;6(5):421-36. *Paitich D, Langevin R. The Clarke Parent-Child Relations Questionnaire: a clinically useful test for adults. '' J Consult Clin Psychol''. 1976 Jun;44(3):428-36. *Freund K, Langevin R, Wescom T, Zajac Y. Heterosexual interest in homosexual males. '' Arch Sex Behav''. 1975 Sep;4(5):509-18. *Freund K, Langevin R, Zajac Y. Heterosexual aversion in homosexual males. A second experiment. '' Br J Psychiatry''. 1974 Aug;125(0):177-80. *Freund K, Langevin R, Zajac Y, Steiner B, Zajac A. The trans-sexual syndrome in homosexual males. '' J Nerv Ment Dis''. 1974 Feb;158(2):145-53. *Freund K, Langevin R, Cibiri S, Zajac Y. Heterosexual aversion in homosexual males. '' Br J Psychiatry''. 1973 Feb;122(567):163-9.

References

External links

Dr. Ronald A. Langevin profile
via

Ronald L. A. Langevin profile

College of Psychologists of Ontario The College of Psychologists of Ontario (CPO) is the regulatory college for the profession of psychology in Ontario, Canada. It sets the standards for the provision of psychological services by Psychologists and Psychological Associates. The Colle ...

* {{DEFAULTSORT:Langevin, Ronald Living people 1940 births Canadian psychologists Forensic psychologists University of Toronto faculty University of Toronto alumni