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

Canadian Canadians () 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 their being ''C ...

forensic psychologist Forensic psychology is the application of scientific knowledge and methods (in relation to psychology) to assist in answering legal questions that may arise in criminal, civil, contractual, or other judicial proceedings. Forensic psychology includes ...

at the

University of Toronto The University of Toronto (UToronto or U of T) is a public university, public research university whose main campus is located on the grounds that surround Queen's Park (Toronto), Queen's Park in Toronto, Ontario, Canada. It was founded by ...

. 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 is the List of towns in Quebec, largest city in the Provinces and territories of Canada, province of Quebec, the List of the largest municipalities in Canada by population, second-largest in Canada, and the List of North American cit ...

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 " court ...

. Langevin argued against the effectiveness of

reparative therapy Conversion therapy is the pseudoscientific practice of attempting to change an individual's sexual orientation, romantic orientation, gender identity, or gender expression to align with heterosexual and cisgender norms. Methods that have been ...

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 ''Ci ...

'' 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 is abusive sexual behavior by one person upon another. It is often perpetrated using physical force, or by taking advantage of another. It often consists of a persistent pattern of sexual assaults. The offender is re ...

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. It is owned by Toronto Star Newspapers Limited, a subsidiary of Torstar Corporation and part of Torstar's Daily News Brands (Torstar), Daily News Brands division. ...

'' 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 (mTBI/concussion) to severe traumati ...

, 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'' is an American Newspaper#Daily, daily newspaper that began publishing in Los Angeles, California, in 1881. Based in the Greater Los Angeles city of El Segundo, California, El Segundo since 2018, it is the List of new ...

'' 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.
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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 The ''Archives of Sexual Behavior'' is a bimonthly peer-reviewed medical journal in sexology. It is the official publication of the International Academy of Sex Research. History The journal was established in 1971 by Richard Green, who served as ...

''. 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 ''The Canadian Journal of Psychiatry/La revue canadienne de psychiatrie'' is a monthly peer-reviewed medical journal published originally by the Canadian Psychiatric Association. Since January 2015 it has been published by SAGE. It covers all aspe ...

''. 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. ''

''. 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 The ''Journal of Consulting and Clinical Psychology'' is a monthly peer-reviewed academic journal published by the American Psychological Association. It covers research on treatment and prevention in all areas of clinical psychology. The editor-in ...

''. 1976 Jun;44(3):428-36. *Freund K, Langevin R, Wescom T, Zajac Y. Heterosexual interest in homosexual males. ''

''. 1975 Sep;4(5):509-18. *Freund K, Langevin R, Zajac Y. Heterosexual aversion in homosexual males. A second experiment. ''

Br J Psychiatry The ''British Journal of Psychiatry'' is a peer-reviewed medical journal covering all branches of psychiatry with a particular emphasis on the clinical aspects of each topic. The journal is owned by the Royal College of Psychiatrists and publishe ...

''. 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 ''The Journal of Nervous and Mental Disease'' is a peer-reviewed medical journal on psychopathology. It was established in 1874 as the ''Chicago Journal of Nervous and Mental Disease''. "Chicago" was dropped from the title beginning in 1876. Articl ...

''. 1974 Feb;158(2):145-53. *Freund K, Langevin R, Cibiri S, Zajac Y. Heterosexual aversion in homosexual males. ''

''. 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 col ...

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