Joseph Nicolosi

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Joseph Nicolosi
Born (1947-01-24)January 24, 1947
New York
Died March 8, 2017(2017-03-08) (aged 70)[1]
California, U.S.
Occupation Psychologist
Spouse(s) Linda Nicolosi (m. 1978–2017)[2]

Joseph Nicolosi (January 24, 1947 – March 8, 2017) was an American clinical psychologist, founder and director of the Thomas Aquinas Psychological Clinic in Encino, California, and a founder and president of the National Association for Research and Therapy of Homosexuality (NARTH).[3] Nicolosi advocated and practiced reparative therapy, a practice that he claimed could help people overcome or mitigate their homosexual desires and replace them with heterosexual ones.


Nicolosi described his theories in Reparative Therapy of Male Homosexuality: A New Clinical Approach (1991) and three other books. Nicolosi proposed that homosexuality is often the product of a condition he described as gender-identity deficit caused by an alienation from, and perceived rejection by, individuals of the subject's gender.[4] He held a Ph.D. from the California School of Professional Psychology. Nicolosi was a founding member of the National Association for Research & Therapy of Homosexuality (NARTH) and was its president for some time. NARTH is a professional association that promotes the acceptance of conversion therapy. He was an advisor to, and officer of, NARTH.[3][5]

In 2012, California passed a law that banned the provision of conversion therapy to minors, including some of Nicolosi's existing patients. Nicolosi was named as a plaintiff in a lawsuit challenging the law on constitutional grounds[6] but the law, effectively barring Nicolosi's clinic from taking on patients under the age of 18, was subsequently upheld.

He died in March 2017 at the age of 70 "from complications from the flu".[7]

See also


  • Nicolosi, Joseph (1991). Reparative Therapy of Male Homosexuality: A New Clinical Approach. Jason Aronson, Inc. ISBN 0-87668-545-9.
  • Nicolosi, Joseph (1993). Healing Homosexuality: Case Stories of Reparative Therapy. Jason Aronson, Inc. ISBN 0-7657-0144-8.
  • Nicolosi, Joseph; Byrd, A. Dean; Potts, Richard W. (June 2000). "Retrospective self-reports of changes in homosexual orientation: A consumer survey of conversion therapy clients". 86. Psychological Reports: 1071–1088. 
  • Nicolosi, Joseph (2002). "A meta-analytic review of treatment of homosexuality.". Psychological reports. 
  • Nicolosi, Joseph & Nicolosi, Linda Ames (2002). A Parent's Guide to Preventing Homosexuality. InterVarsity Press. ISBN 0-8308-2379-4.
  • Nicolosi, Joseph (2002). "A critique of Bem's "exotic becomes erotic" theory of sexual orientation development.". Psychological reports. 
  • Nicolosi, Joseph (2008). "Clients' perceptions of how reorientation therapy and self-help can promote changes in sexual orientation.". Psychological reports. 
  • Nicolosi, Joseph (2009). Shame and Attachment Loss: The Practical Work of Reparative Therapy. InterVarsity Press
  • Nicolosi, Joseph (2017). A Parent's Guide to Preventing Homosexuality, revised edition. Liberal Mind Publishers


  1. ^ Sandomir, Richard (March 16, 2017). "Joseph Nicolosi, Advocate of Conversion Therapy for Gays, Dies at 70". The New York Times.
  2. ^ Joseph Nicolosi: Thomas Aquinas Psychological Clinic (March 9, 2017). "Post number 652660888270320". Facebook. Retrieved March 11, 2017. Linda Nicolosi, Joe's lifelong collaborator and also his wife of 39 years, is grateful for everyone's prayers ... 
  3. ^ a b "NARTH Officers". Archived from the original on 2004-08-03. Retrieved 2010-05-10. 
  4. ^ Joseph Nicolosi, Ph.D., Reparative Therapy of Male Homosexuality, Rowman & Littlefield, 2004, ISBN 0-7657-0142-1
  5. ^ "NARTH Advisors". Archived from the original on 2008-06-17. Retrieved 2010-05-10. 
  6. ^ "Second Lawsuit Filed against Calif. Gay Therapy Ban". CBN. October 7, 2012. Retrieved 23 August 2015. 
  7. ^ Allen, Samantha (March 9, 2017). "'Ex-Gay Therapy' Leader Dead at 70". The Daily Beast.

External links

  • official website
  • Catholic Answers: Dr. Joseph Nicolosi
  • Catholic Therapists: Dr. Joseph Nicolosi
  • MSNBC: image of Dr. Joseph Nicolosi
  • Author Interview: A Parent's Guide to Preventing Homosexuality by Dr. Joseph Nicolosi and Linda Nicolosi.
  • Book Excerpt: Reparative Therapy of Male Homosexuality by Dr. Joseph Nicolosi.
  • Book Excerpt: Healing Homosexuality: Case Stories of Reparative Therapy by Dr. Joseph Nicolosi.
  • Book Excerpt: A Parent's Guide to Preventing Homosexuality by Dr. Joseph Nicolosi and Linda Nicolosi.
  • Review: Therapy Terminable and Interminable: 'Non-gay Homosexuals' Come Out of the Closet by professor James Weinrich. A scholarly review of one of Nicolosi's scholarly books about conversion therapy.
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